/*
 *	jquery elevatezoom 3.0.8
 *	demo's and documentation:
 *	www.elevateweb.co.uk/image-zoom
 *
 *	copyright (c) 2012 andrew eades
 *	www.elevateweb.co.uk
 *
 *	dual licensed under the gpl and mit licenses.
 *	http://en.wikipedia.org/wiki/mit_license
 *	http://en.wikipedia.org/wiki/gnu_general_public_license
 *

/*
 *	jquery elevatezoom 3.0.3
 *	demo's and documentation:
 *	www.elevateweb.co.uk/image-zoom
 *
 *	copyright (c) 2012 andrew eades
 *	www.elevateweb.co.uk
 *
 *	dual licensed under the gpl and mit licenses.
 *	http://en.wikipedia.org/wiki/mit_license
 *	http://en.wikipedia.org/wiki/gnu_general_public_license
 */


if ( typeof object.create !== 'function' ) {
	object.create = function( obj ) {
		function f() {};
		f.prototype = obj;
		return new f();
	};
}

(function( $, window, document, undefined ) {
	var elevatezoom = {
			init: function( options, elem ) {
				var self = this;

				self.elem = elem;
				self.$elem = $( elem );

				self.imagesrc = self.$elem.data("zoom-image") ? self.$elem.data("zoom-image") : self.$elem.attr("src");

				self.options = $.extend( {}, $.fn.elevatezoom.options, options );

				//tint override settings
				if(self.options.tint) {
					self.options.lenscolour = "none", //colour of the lens background
					self.options.lensopacity =  "1" //opacity of the lens
				}
				//inner override settings
				if(self.options.zoomtype == "inner") {self.options.showlens = false;}


				//remove alt on hover

				self.$elem.parent().removeattr('title').removeattr('alt');

				self.zoomimage = self.imagesrc;

				self.refresh( 1 );



				//create the image swap from the gallery 
				$('#'+self.options.gallery + ' a').click( function(e) { 

					//set a class on the currently active gallery image
					if(self.options.galleryactiveclass){
						$('#'+self.options.gallery + ' a').removeclass(self.options.galleryactiveclass);
						$(this).addclass(self.options.galleryactiveclass);
					}
					//stop any link on the a tag from working
					e.preventdefault();

					//call the swap image function            
					if($(this).data("zoom-image")){self.zoomimagepre = $(this).data("zoom-image")}
					else{self.zoomimagepre = $(this).data("image");}
					self.swaptheimage($(this).data("image"), self.zoomimagepre);
					return false;
				});

			},

			refresh: function( length ) {
				var self = this;

				settimeout(function() {
					self.fetch(self.imagesrc);

				}, length || self.options.refresh );
			},

			fetch: function(imgsrc) {
				//get the image
				var self = this;
				var newimg = new image();
				newimg.onload = function() {
					//set the large image dimensions - used to calculte ratio's
					self.largewidth = newimg.width;
					self.largeheight = newimg.height;
					//once image is loaded start the calls
					self.startzoom();
					self.currentimage = self.imagesrc;
					//let caller know image has been loaded
					self.options.onzoomedimageloaded(self.$elem);
				}
				newimg.src = imgsrc; // this must be done after setting onload

				return;

			},

			startzoom: function( ) {
				var self = this;
				//get dimensions of the non zoomed image
				self.nzwidth = self.$elem.width();
				self.nzheight = self.$elem.height();

				//activated elements
				self.iswindowactive = false;
				self.islensactive = false;
				self.istintactive = false;
				self.overwindow = false;    

				//crossfade wrappe
				if(self.options.imagecrossfade){
					self.zoomwrap = self.$elem.wrap('<div style="height:'+self.nzheight+'px;width:'+self.nzwidth+'px;" class="zoomwrapper" />');        
					self.$elem.css('position', 'absolute'); 
				}

				self.zoomlock = 1;
				self.scrollinglock = false;
				self.changebgsize = false;
				self.currentzoomlevel = self.options.zoomlevel;


				//get offset of the non zoomed image
				self.nzoffset = self.$elem.offset();
				//calculate the width ratio of the large/small image
				self.widthratio = (self.largewidth/self.currentzoomlevel) / self.nzwidth;
				self.heightratio = (self.largeheight/self.currentzoomlevel) / self.nzheight; 


				//if window zoom        
				if(self.options.zoomtype == "window") {
					self.zoomwindowstyle = "overflow: hidden;"
						+ "background-position: 0px 0px;text-align:center;"  
						+ "background-color: " + string(self.options.zoomwindowbgcolour)            
						+ ";width: " + string(self.options.zoomwindowwidth) + "px;"
						+ "height: " + string(self.options.zoomwindowheight)
						+ "px;float: left;"
						+ "background-size: "+ self.largewidth/self.currentzoomlevel+ "px " +self.largeheight/self.currentzoomlevel + "px;"
						+ "display: none;z-index:100;"
						+ "border: " + string(self.options.bordersize) 
						+ "px solid " + self.options.bordercolour 
						+ ";background-repeat: no-repeat;"
						+ "position: absolute;";
				}    


				//if inner  zoom    
				if(self.options.zoomtype == "inner") {
					//has a border been put on the image? lets cater for this

					var borderwidth = self.$elem.css("border-left-width");

					self.zoomwindowstyle = "overflow: hidden;"
						+ "margin-left: " + string(borderwidth) + ";" 
						+ "margin-top: " + string(borderwidth) + ";"         
						+ "background-position: 0px 0px;"
						+ "width: " + string(self.nzwidth) + "px;"
						+ "height: " + string(self.nzheight) + "px;"
						+ "px;float: left;"
						+ "display: none;"
						+ "cursor:"+(self.options.cursor)+";"
						+ "px solid " + self.options.bordercolour 
						+ ";background-repeat: no-repeat;"
						+ "position: absolute;";
				}    



				//lens style for window zoom
				if(self.options.zoomtype == "window") {


					// adjust images less than the window height

					if(self.nzheight < self.options.zoomwindowwidth/self.widthratio){
						lensheight = self.nzheight;              
					}
					else{
						lensheight = string((self.options.zoomwindowheight/self.heightratio))
					}
					if(self.largewidth < self.options.zoomwindowwidth){
						lenswidth = self.nzwidth;
					}       
					else{
						lenswidth =  (self.options.zoomwindowwidth/self.widthratio);
					}


					self.lensstyle = "background-position: 0px 0px;width: " + string((self.options.zoomwindowwidth)/self.widthratio) + "px;height: " + string((self.options.zoomwindowheight)/self.heightratio)
					+ "px;float: right;display: none;"
					+ "overflow: hidden;"
					+ "z-index: 999;"   
					+ "-webkit-transform: translatez(0);"               
					+ "opacity:"+(self.options.lensopacity)+";filter: alpha(opacity = "+(self.options.lensopacity*100)+"); zoom:1;"
					+ "width:"+lenswidth+"px;"
					+ "height:"+lensheight+"px;"
					+ "background-color:"+(self.options.lenscolour)+";"					
					+ "cursor:"+(self.options.cursor)+";"
					+ "border: "+(self.options.lensbordersize)+"px" +
					" solid "+(self.options.lensbordercolour)+";background-repeat: no-repeat;position: absolute;";
				} 


				//tint style
				self.tintstyle = "display: block;"
					+ "position: absolute;"
					+ "background-color: "+self.options.tintcolour+";"	
					+ "filter:alpha(opacity=0);"		
					+ "opacity: 0;"	
					+ "width: " + self.nzwidth + "px;"
					+ "height: " + self.nzheight + "px;"

					;

				//lens style for lens zoom with optional round for modern browsers
				self.lensround = '';

				if(self.options.zoomtype == "lens") {

					self.lensstyle = "background-position: 0px 0px;"
						+ "float: left;display: none;"
						+ "border: " + string(self.options.bordersize) + "px solid " + self.options.bordercolour+";"
						+ "width:"+ string(self.options.lenssize) +"px;"
						+ "height:"+ string(self.options.lenssize)+"px;"
						+ "background-repeat: no-repeat;position: absolute;";


				}


				//does not round in all browsers
				if(self.options.lensshape == "round") {
					self.lensround = "border-top-left-radius: " + string(self.options.lenssize / 2 + self.options.bordersize) + "px;"
					+ "border-top-right-radius: " + string(self.options.lenssize / 2 + self.options.bordersize) + "px;"
					+ "border-bottom-left-radius: " + string(self.options.lenssize / 2 + self.options.bordersize) + "px;"
					+ "border-bottom-right-radius: " + string(self.options.lenssize / 2 + self.options.bordersize) + "px;";

				}

				//create the div's                                                + ""
				//self.zoomcontainer = $('<div/>').addclass('zoomcontainer').css({"position":"relative", "height":self.nzheight, "width":self.nzwidth});

				self.zoomcontainer = $('<div class="zoomcontainer" style="-webkit-transform: translatez(0);position:absolute;left:'+self.nzoffset.left+'px;top:'+self.nzoffset.top+'px;height:'+self.nzheight+'px;width:'+self.nzwidth+'px;"></div>');
				$('body').append(self.zoomcontainer);	


				//this will add overflow hidden and contrain the lens on lens mode       
				if(self.options.containlenszoom && self.options.zoomtype == "lens"){
					self.zoomcontainer.css("overflow", "hidden");
				}
				if(self.options.zoomtype != "inner") {
					self.zoomlens = $("<div class='zoomlens' style='" + self.lensstyle + self.lensround +"'>&nbsp;</div>")
					.appendto(self.zoomcontainer)
					.click(function () {
						self.$elem.trigger('click');
					});


					if(self.options.tint) {
						self.tintcontainer = $('<div/>').addclass('tintcontainer');	
						self.zoomtint = $("<div class='zoomtint' style='"+self.tintstyle+"'></div>");


						self.zoomlens.wrap(self.tintcontainer);


						self.zoomtintcss = self.zoomlens.after(self.zoomtint);	

						//if tint enabled - set an image to show over the tint

						self.zoomtintimage = $('<img style="position: absolute; left: 0px; top: 0px; max-width: none; width: '+self.nzwidth+'px; height: '+self.nzheight+'px;" src="'+self.imagesrc+'">')
						.appendto(self.zoomlens)
						.click(function () {

							self.$elem.trigger('click');
						});

					}          

				}







				//create zoom window 
				if(isnan(self.options.zoomwindowposition)){
					self.zoomwindow = $("<div style='z-index:999;left:"+(self.windowoffsetleft)+"px;top:"+(self.windowoffsettop)+"px;" + self.zoomwindowstyle + "' class='zoomwindow'>&nbsp;</div>")
					.appendto('body')
					.click(function () {
						self.$elem.trigger('click');
					});
				}else{
					self.zoomwindow = $("<div style='z-index:999;left:"+(self.windowoffsetleft)+"px;top:"+(self.windowoffsettop)+"px;" + self.zoomwindowstyle + "' class='zoomwindow'>&nbsp;</div>")
					.appendto(self.zoomcontainer)
					.click(function () {
						self.$elem.trigger('click');
					});
				}              
				self.zoomwindowcontainer = $('<div/>').addclass('zoomwindowcontainer').css("width",self.options.zoomwindowwidth);
				self.zoomwindow.wrap(self.zoomwindowcontainer);


				//  self.captionstyle = "text-align: left;background-color: black;color: white;font-weight: bold;padding: 10px;font-family: sans-serif;font-size: 11px";                                                                                                                                                                                                                                          
				// self.zoomcaption = $('<div class="elevatezoom-caption" style="'+self.captionstyle+'display: block; width: 280px;">insert alt tag</div>').appendto(self.zoomwindow.parent());

				if(self.options.zoomtype == "lens") {
					self.zoomlens.css({ backgroundimage: "url('" + self.imagesrc + "')" }); 
				}
				if(self.options.zoomtype == "window") {
					self.zoomwindow.css({ backgroundimage: "url('" + self.imagesrc + "')" }); 
				}
				if(self.options.zoomtype == "inner") {
					self.zoomwindow.css({ backgroundimage: "url('" + self.imagesrc + "')" }); 
				}
				/*-------------------end the zoom window and lens----------------------------------*/
				//touch events
				self.$elem.bind('touchmove', function(e){    
					e.preventdefault();
					var touch = e.originalevent.touches[0] || e.originalevent.changedtouches[0];  
					self.setposition(touch);

				});  
				self.zoomcontainer.bind('touchmove', function(e){ 
					if(self.options.zoomtype == "inner") {
						self.showhidewindow("show");

					}
					e.preventdefault();
					var touch = e.originalevent.touches[0] || e.originalevent.changedtouches[0];  
					self.setposition(touch); 

				});  	
				self.zoomcontainer.bind('touchend', function(e){ 
					self.showhidewindow("hide");
					if(self.options.showlens) {self.showhidelens("hide");}
					if(self.options.tint && self.options.zoomtype != "inner") {self.showhidetint("hide");}
				});  	

				self.$elem.bind('touchend', function(e){ 
					self.showhidewindow("hide");
					if(self.options.showlens) {self.showhidelens("hide");}
					if(self.options.tint && self.options.zoomtype != "inner") {self.showhidetint("hide");}
				});  	
				if(self.options.showlens) {
					self.zoomlens.bind('touchmove', function(e){ 

						e.preventdefault();
						var touch = e.originalevent.touches[0] || e.originalevent.changedtouches[0];  
						self.setposition(touch); 
					});    


					self.zoomlens.bind('touchend', function(e){ 
						self.showhidewindow("hide");
						if(self.options.showlens) {self.showhidelens("hide");}
						if(self.options.tint && self.options.zoomtype != "inner") {self.showhidetint("hide");}
					});  
				}
				//needed to work in ie
				self.$elem.bind('mousemove', function(e){   
					if(self.overwindow == false){self.setelements("show");}
					//make sure on orientation change the setposition is not fired
					if(self.lastx !== e.clientx || self.lasty !== e.clienty){
						self.setposition(e);
						self.currentloc = e;
					}   
					self.lastx = e.clientx;
					self.lasty = e.clienty;    

				});  	

				self.zoomcontainer.bind('mousemove', function(e){ 

					if(self.overwindow == false){self.setelements("show");} 

					//make sure on orientation change the setposition is not fired 
					if(self.lastx !== e.clientx || self.lasty !== e.clienty){
						self.setposition(e);
						self.currentloc = e;
					}   
					self.lastx = e.clientx;
					self.lasty = e.clienty;    
				});  	
				if(self.options.zoomtype != "inner") {
					self.zoomlens.bind('mousemove', function(e){      
						//make sure on orientation change the setposition is not fired
						if(self.lastx !== e.clientx || self.lasty !== e.clienty){
							self.setposition(e);
							self.currentloc = e;
						}   
						self.lastx = e.clientx;
						self.lasty = e.clienty;    
					});
				}
				if(self.options.tint && self.options.zoomtype != "inner") {
					self.zoomtint.bind('mousemove', function(e){ 
						//make sure on orientation change the setposition is not fired
						if(self.lastx !== e.clientx || self.lasty !== e.clienty){
							self.setposition(e);
							self.currentloc = e;
						}   
						self.lastx = e.clientx;
						self.lasty = e.clienty;    
					});

				}
				if(self.options.zoomtype == "inner") {
					self.zoomwindow.bind('mousemove', function(e) {
						//self.overwindow = true;
						//make sure on orientation change the setposition is not fired
						if(self.lastx !== e.clientx || self.lasty !== e.clienty){
							self.setposition(e);
							self.currentloc = e;
						}   
						self.lastx = e.clientx;
						self.lasty = e.clienty;    
					});

				}


				//  lensfadeout: 500,  zoomtintfadein
				self.zoomcontainer.add(self.$elem).mouseenter(function(){

					if(self.overwindow == false){self.setelements("show");} 


				}).mouseleave(function(){
					if(!self.scrolllock){
						self.setelements("hide");
            self.options.ondestroy(self.$elem);
					}
				});
				//end ove image





				if(self.options.zoomtype != "inner") {
					self.zoomwindow.mouseenter(function(){
						self.overwindow = true;   
						self.setelements("hide");                  
					}).mouseleave(function(){

						self.overwindow = false;
					});
				}
				//end ove image



//				var delta = parseint(e.originalevent.wheeldelta || -e.originalevent.detail);

				//      $(this).empty();    
				//    return false;

				//fix for initial zoom setting
				if (self.options.zoomlevel != 1){
					//	self.changezoomlevel(self.currentzoomlevel);
				}
				//set the min zoomlevel
				if(self.options.minzoomlevel){
					self.minzoomlevel = self.options.minzoomlevel;
				}
				else{
					self.minzoomlevel = self.options.scrollzoomincrement * 2;
				}


				if(self.options.scrollzoom){


					self.zoomcontainer.add(self.$elem).bind('mousewheel dommousescroll mozmousepixelscroll', function(e){


//						in ie there is issue with firing of mouseleave - so check whether still scrolling
//						and on mouseleave check if scrolllock          
						self.scrolllock = true;
						cleartimeout($.data(this, 'timer'));
						$.data(this, 'timer', settimeout(function() {
							self.scrolllock = false;
							//do something
						}, 250));

						var theevent = e.originalevent.wheeldelta || e.originalevent.detail*-1


						//this.scrolltop += ( delta < 0 ? 1 : -1 ) * 30;
						//   e.preventdefault();


						e.stopimmediatepropagation();
						e.stoppropagation();
						e.preventdefault();


						if(theevent /120 > 0) {
							//scrolling up
							if(self.currentzoomlevel >= self.minzoomlevel){ 
								self.changezoomlevel(self.currentzoomlevel-self.options.scrollzoomincrement);        
							}

						}
						else{
							//scrolling down


							if(self.options.maxzoomlevel){
								if(self.currentzoomlevel <= self.options.maxzoomlevel){           
									self.changezoomlevel(parsefloat(self.currentzoomlevel)+self.options.scrollzoomincrement);
								}
							}
							else{
								//andy 

								self.changezoomlevel(parsefloat(self.currentzoomlevel)+self.options.scrollzoomincrement);
							}

						}
						return false;
					});
				}


			},
			setelements: function(type) {
				var self = this;
        if(!self.options.zoomenabled){return false;}
				if(type=="show"){
					if(self.iswindowset){
						if(self.options.zoomtype == "inner") {self.showhidewindow("show");}
						if(self.options.zoomtype == "window") {self.showhidewindow("show");}
						if(self.options.showlens) {self.showhidelens("show");}
						if(self.options.tint && self.options.zoomtype != "inner") {self.showhidetint("show");
						}
					}
				}

				if(type=="hide"){
					if(self.options.zoomtype == "window") {self.showhidewindow("hide");}
					if(!self.options.tint) {self.showhidewindow("hide");}
					if(self.options.showlens) {self.showhidelens("hide");}
					if(self.options.tint) {	self.showhidetint("hide");}
				}   
			},
			setposition: function(e) {
      
				var self = this;
        
        if(!self.options.zoomenabled){return false;}

				//recaclc offset each time in case the image moves
				//this can be caused by other on page elements
				self.nzheight = self.$elem.height();
				self.nzwidth = self.$elem.width();
				self.nzoffset = self.$elem.offset();

				if(self.options.tint && self.options.zoomtype != "inner") {
					self.zoomtint.css({ top: 0});
					self.zoomtint.css({ left: 0});
				}
				//set responsive       
				//will checking if the image needs changing before running this code work faster?
				if(self.options.responsive && !self.options.scrollzoom){
					if(self.options.showlens){ 
						if(self.nzheight < self.options.zoomwindowwidth/self.widthratio){
							lensheight = self.nzheight;              
						}
						else{
							lensheight = string((self.options.zoomwindowheight/self.heightratio))
						}
						if(self.largewidth < self.options.zoomwindowwidth){
							lenswidth = self.nzwidth;
						}       
						else{
							lenswidth =  (self.options.zoomwindowwidth/self.widthratio);
						}
						self.widthratio = self.largewidth / self.nzwidth;
						self.heightratio = self.largeheight / self.nzheight;        
						if(self.options.zoomtype != "lens") {


							//possibly dont need to keep recalcalculating
							//if the lens is heigher than the image, then set lens size to image size
							if(self.nzheight < self.options.zoomwindowwidth/self.widthratio){
								lensheight = self.nzheight;  

							}
							else{
								lensheight = string((self.options.zoomwindowheight/self.heightratio))
							}

							if(self.nzwidth < self.options.zoomwindowheight/self.heightratio){
								lenswidth = self.nzwidth;
							}       
							else{
								lenswidth =  string((self.options.zoomwindowwidth/self.widthratio));
							}            

							self.zoomlens.css('width', lenswidth);    
							self.zoomlens.css('height', lensheight); 

							if(self.options.tint){    
								self.zoomtintimage.css('width', self.nzwidth);    
								self.zoomtintimage.css('height', self.nzheight); 
							}

						}                     
						if(self.options.zoomtype == "lens") {  

							self.zoomlens.css({ width: string(self.options.lenssize) + 'px', height: string(self.options.lenssize) + 'px' })      


						}        
						//end responsive image change
					}
				}

				//container fix
				self.zoomcontainer.css({ top: self.nzoffset.top});
				self.zoomcontainer.css({ left: self.nzoffset.left});
				self.mouseleft = parseint(e.pagex - self.nzoffset.left);
				self.mousetop = parseint(e.pagey - self.nzoffset.top);
				//calculate the location of the lens

				//calculate the bound regions - but only if zoom window
				if(self.options.zoomtype == "window") {
					self.etoppos = (self.mousetop < (self.zoomlens.height()/2));
					self.eboppos = (self.mousetop > self.nzheight - (self.zoomlens.height()/2)-(self.options.lensbordersize*2));
					self.eloppos = (self.mouseleft < 0+((self.zoomlens.width()/2))); 
					self.eroppos = (self.mouseleft > (self.nzwidth - (self.zoomlens.width()/2)-(self.options.lensbordersize*2)));  
				}
				//calculate the bound regions - but only for inner zoom
				if(self.options.zoomtype == "inner"){ 
					self.etoppos = (self.mousetop < ((self.nzheight/2)/self.heightratio) );
					self.eboppos = (self.mousetop > (self.nzheight - ((self.nzheight/2)/self.heightratio)));
					self.eloppos = (self.mouseleft < 0+(((self.nzwidth/2)/self.widthratio)));
					self.eroppos = (self.mouseleft > (self.nzwidth - (self.nzwidth/2)/self.widthratio-(self.options.lensbordersize*2)));  
				}

				// if the mouse position of the slider is one of the outerbounds, then hide  window and lens
				if (self.mouseleft < 0 || self.mousetop < 0 || self.mouseleft > self.nzwidth || self.mousetop > self.nzheight ) {				          
					self.setelements("hide");
					return;
				}
				//else continue with operations
				else {


					//lens options
					if(self.options.showlens) {
						//		self.showhidelens("show");
						//set background position of lens
						self.lensleftpos = string(math.floor(self.mouseleft - self.zoomlens.width() / 2));
						self.lenstoppos = string(math.floor(self.mousetop - self.zoomlens.height() / 2));


					}
					//adjust the background position if the mouse is in one of the outer regions 

					//top region
					if(self.etoppos){
						self.lenstoppos = 0;
					}
					//left region
					if(self.eloppos){
						self.windowleftpos = 0;
						self.lensleftpos = 0;
						self.tintpos=0;
					}     
					//set bottom and right region for window mode
					if(self.options.zoomtype == "window") {
						if(self.eboppos){
							self.lenstoppos = math.max( (self.nzheight)-self.zoomlens.height()-(self.options.lensbordersize*2), 0 );
						} 
						if(self.eroppos){
							self.lensleftpos = (self.nzwidth-(self.zoomlens.width())-(self.options.lensbordersize*2));
						}  
					}  
					//set bottom and right region for inner mode
					if(self.options.zoomtype == "inner") {
						if(self.eboppos){
							self.lenstoppos = math.max( ((self.nzheight)-(self.options.lensbordersize*2)), 0 );
						} 
						if(self.eroppos){
							self.lensleftpos = (self.nzwidth-(self.nzwidth)-(self.options.lensbordersize*2));
						}  

					}
					//if lens zoom
					if(self.options.zoomtype == "lens") {  
						self.windowleftpos = string(((e.pagex - self.nzoffset.left) * self.widthratio - self.zoomlens.width() / 2) * (-1));   
						self.windowtoppos = string(((e.pagey - self.nzoffset.top) * self.heightratio - self.zoomlens.height() / 2) * (-1));

						self.zoomlens.css({ backgroundposition: self.windowleftpos + 'px ' + self.windowtoppos + 'px' });

						if(self.changebgsize){  

							if(self.nzheight>self.nzwidth){  
								if(self.options.zoomtype == "lens"){       
									self.zoomlens.css({ "background-size": self.largewidth/self.newvalueheight + 'px ' + self.largeheight/self.newvalueheight + 'px' });
								}   

								self.zoomwindow.css({ "background-size": self.largewidth/self.newvalueheight + 'px ' + self.largeheight/self.newvalueheight + 'px' });
							}
							else{     
								if(self.options.zoomtype == "lens"){       
									self.zoomlens.css({ "background-size": self.largewidth/self.newvaluewidth + 'px ' + self.largeheight/self.newvaluewidth + 'px' });
								}   
								self.zoomwindow.css({ "background-size": self.largewidth/self.newvaluewidth + 'px ' + self.largeheight/self.newvaluewidth + 'px' });            
							}
							self.changebgsize = false;
						}    

						self.setwindowpostition(e);  
					}
					//if tint zoom   
					if(self.options.tint && self.options.zoomtype != "inner") {
						self.settintposition(e);

					}
					//set the css background position 
					if(self.options.zoomtype == "window") {
						self.setwindowpostition(e);   
					}
					if(self.options.zoomtype == "inner") {
						self.setwindowpostition(e);   
					}
					if(self.options.showlens) {

						if(self.fullwidth && self.options.zoomtype != "lens"){
							self.lensleftpos = 0;

						}
						self.zoomlens.css({ left: self.lensleftpos + 'px', top: self.lenstoppos + 'px' })  
					}

				} //end else



			},
			showhidewindow: function(change) {
				var self = this;              
				if(change == "show"){      
					if(!self.iswindowactive){
						if(self.options.zoomwindowfadein){
							self.zoomwindow.stop(true, true, false).fadein(self.options.zoomwindowfadein);
						}
						else{self.zoomwindow.show();}
						self.iswindowactive = true;
					}            
				}
				if(change == "hide"){
					if(self.iswindowactive){
						if(self.options.zoomwindowfadeout){
							self.zoomwindow.stop(true, true).fadeout(self.options.zoomwindowfadeout, function () {
								if (self.loop) {
									//stop moving the zoom window when zoom window is faded out
									clearinterval(self.loop);
									self.loop = false;
								}
							});
						}
						else{self.zoomwindow.hide();}
						self.iswindowactive = false;        
					}      
				}
			},
			showhidelens: function(change) {
				var self = this;              
				if(change == "show"){      
					if(!self.islensactive){
						if(self.options.lensfadein){
							self.zoomlens.stop(true, true, false).fadein(self.options.lensfadein);
						}
						else{self.zoomlens.show();}
						self.islensactive = true;
					}            
				}
				if(change == "hide"){
					if(self.islensactive){
						if(self.options.lensfadeout){
							self.zoomlens.stop(true, true).fadeout(self.options.lensfadeout);
						}
						else{self.zoomlens.hide();}
						self.islensactive = false;        
					}      
				}
			},
			showhidetint: function(change) {
				var self = this;              
				if(change == "show"){      
					if(!self.istintactive){

						if(self.options.zoomtintfadein){
							self.zoomtint.css({opacity:self.options.tintopacity}).animate().stop(true, true).fadein("slow");
						}
						else{
							self.zoomtint.css({opacity:self.options.tintopacity}).animate();
							self.zoomtint.show();


						}
						self.istintactive = true;
					}            
				}
				if(change == "hide"){      
					if(self.istintactive){ 

						if(self.options.zoomtintfadeout){
							self.zoomtint.stop(true, true).fadeout(self.options.zoomtintfadeout);
						}
						else{self.zoomtint.hide();}
						self.istintactive = false;        
					}      
				}
			},
			setlenspostition: function( e ) {


			},
			setwindowpostition: function( e ) {
				//return obj.slice( 0, count );
				var self = this;

				if(!isnan(self.options.zoomwindowposition)){

					switch (self.options.zoomwindowposition) { 
					case 1: //done         
						self.windowoffsettop = (self.options.zoomwindowoffety);//done - 1
						self.windowoffsetleft =(+self.nzwidth); //done 1, 2, 3, 4, 16
						break;
					case 2:
						if(self.options.zoomwindowheight > self.nzheight){ //positive margin

							self.windowoffsettop = ((self.options.zoomwindowheight/2)-(self.nzheight/2))*(-1);
							self.windowoffsetleft =(self.nzwidth); //done 1, 2, 3, 4, 16
						}
						else{ //negative margin

						}
						break;
					case 3: //done        
						self.windowoffsettop = (self.nzheight - self.zoomwindow.height() - (self.options.bordersize*2)); //done 3,9
						self.windowoffsetleft =(self.nzwidth); //done 1, 2, 3, 4, 16
						break;      
					case 4: //done  
						self.windowoffsettop = (self.nzheight); //done - 4,5,6,7,8
						self.windowoffsetleft =(self.nzwidth); //done 1, 2, 3, 4, 16
						break;
					case 5: //done  
						self.windowoffsettop = (self.nzheight); //done - 4,5,6,7,8
						self.windowoffsetleft =(self.nzwidth-self.zoomwindow.width()-(self.options.bordersize*2)); //done - 5,15
						break;
					case 6: 
						if(self.options.zoomwindowheight > self.nzheight){ //positive margin
							self.windowoffsettop = (self.nzheight);  //done - 4,5,6,7,8

							self.windowoffsetleft =((self.options.zoomwindowwidth/2)-(self.nzwidth/2)+(self.options.bordersize*2))*(-1);  
						}
						else{ //negative margin

						}


						break;
					case 7: //done  
						self.windowoffsettop = (self.nzheight);  //done - 4,5,6,7,8
						self.windowoffsetleft = 0; //done 7, 13
						break;
					case 8: //done  
						self.windowoffsettop = (self.nzheight); //done - 4,5,6,7,8
						self.windowoffsetleft =(self.zoomwindow.width()+(self.options.bordersize*2) )* (-1);  //done 8,9,10,11,12
						break;
					case 9:  //done  
						self.windowoffsettop = (self.nzheight - self.zoomwindow.height() - (self.options.bordersize*2)); //done 3,9
						self.windowoffsetleft =(self.zoomwindow.width()+(self.options.bordersize*2) )* (-1);  //done 8,9,10,11,12
						break;
					case 10: 
						if(self.options.zoomwindowheight > self.nzheight){ //positive margin

							self.windowoffsettop = ((self.options.zoomwindowheight/2)-(self.nzheight/2))*(-1);
							self.windowoffsetleft =(self.zoomwindow.width()+(self.options.bordersize*2) )* (-1);  //done 8,9,10,11,12
						}
						else{ //negative margin

						}
						break;
					case 11: 
						self.windowoffsettop = (self.options.zoomwindowoffety);
						self.windowoffsetleft =(self.zoomwindow.width()+(self.options.bordersize*2) )* (-1);  //done 8,9,10,11,12
						break;
					case 12: //done  
						self.windowoffsettop = (self.zoomwindow.height()+(self.options.bordersize*2))*(-1); //done 12,13,14,15,16
						self.windowoffsetleft =(self.zoomwindow.width()+(self.options.bordersize*2) )* (-1);  //done 8,9,10,11,12
						break;
					case 13: //done  
						self.windowoffsettop = (self.zoomwindow.height()+(self.options.bordersize*2))*(-1); //done 12,13,14,15,16
						self.windowoffsetleft =(0); //done 7, 13
						break;
					case 14: 
						if(self.options.zoomwindowheight > self.nzheight){ //positive margin
							self.windowoffsettop = (self.zoomwindow.height()+(self.options.bordersize*2))*(-1); //done 12,13,14,15,16

							self.windowoffsetleft =((self.options.zoomwindowwidth/2)-(self.nzwidth/2)+(self.options.bordersize*2))*(-1);  
						}
						else{ //negative margin

						}

						break;
					case 15://done   
						self.windowoffsettop = (self.zoomwindow.height()+(self.options.bordersize*2))*(-1); //done 12,13,14,15,16
						self.windowoffsetleft =(self.nzwidth-self.zoomwindow.width()-(self.options.bordersize*2)); //done - 5,15
						break;
					case 16:  //done  
						self.windowoffsettop = (self.zoomwindow.height()+(self.options.bordersize*2))*(-1); //done 12,13,14,15,16
						self.windowoffsetleft =(self.nzwidth); //done 1, 2, 3, 4, 16
						break;            
					default: //done  
						self.windowoffsettop = (self.options.zoomwindowoffety);//done - 1
					self.windowoffsetleft =(self.nzwidth); //done 1, 2, 3, 4, 16
					} 
				} //end isnan
				else{
					//we can position in a class - assume that any string passed is
					self.externalcontainer = $('#'+self.options.zoomwindowposition);
					self.externalcontainerwidth = self.externalcontainer.width();
					self.externalcontainerheight = self.externalcontainer.height();
					self.externalcontaineroffset = self.externalcontainer.offset();

					self.windowoffsettop = self.externalcontaineroffset.top;//done - 1
					self.windowoffsetleft =self.externalcontaineroffset.left; //done 1, 2, 3, 4, 16

				}
				self.iswindowset = true;
				self.windowoffsettop = self.windowoffsettop + self.options.zoomwindowoffety;
				self.windowoffsetleft = self.windowoffsetleft + self.options.zoomwindowoffetx;

				self.zoomwindow.css({ top: self.windowoffsettop});
				self.zoomwindow.css({ left: self.windowoffsetleft});

				if(self.options.zoomtype == "inner") {
					self.zoomwindow.css({ top: 0});
					self.zoomwindow.css({ left: 0});

				}   


				self.windowleftpos = string(((e.pagex - self.nzoffset.left) * self.widthratio - self.zoomwindow.width() / 2) * (-1));   
				self.windowtoppos = string(((e.pagey - self.nzoffset.top) * self.heightratio - self.zoomwindow.height() / 2) * (-1));
				if(self.etoppos){self.windowtoppos = 0;}
				if(self.eloppos){self.windowleftpos = 0;}     
				if(self.eboppos){self.windowtoppos = (self.largeheight/self.currentzoomlevel-self.zoomwindow.height())*(-1);  } 
				if(self.eroppos){self.windowleftpos = ((self.largewidth/self.currentzoomlevel-self.zoomwindow.width())*(-1));}    

				//stops micro movements
				if(self.fullheight){
					self.windowtoppos = 0;

				}
				if(self.fullwidth){
					self.windowleftpos = 0;

				}
				//set the css background position 


				if(self.options.zoomtype == "window" || self.options.zoomtype == "inner") {

					if(self.zoomlock == 1){
						//overrides for images not zoomable
						if(self.widthratio <= 1){

							self.windowleftpos = 0;
						}
						if(self.heightratio <= 1){ 
							self.windowtoppos = 0;
						}
					}
					// adjust images less than the window height

					if (self.options.zoomtype == "window") {
						if (self.largeheight < self.options.zoomwindowheight) {

							self.windowtoppos = 0;
						}
						if (self.largewidth < self.options.zoomwindowwidth) {
							self.windowleftpos = 0;
						}
					}

					//set the zoomwindow background position
					if (self.options.easing){

						//     if(self.changezoom){
						//           clearinterval(self.loop);
						//           self.changezoom = false;
						//           self.loop = false;

						//            }
						//set the pos to 0 if not set
						if(!self.xp){self.xp = 0;}
						if(!self.yp){self.yp = 0;}  
						//if loop not already started, then run it 
						if (!self.loop){           
							self.loop = setinterval(function(){                
								//using zeno's paradox    

								self.xp += (self.windowleftpos  - self.xp) / self.options.easingamount; 
								self.yp += (self.windowtoppos  - self.yp) / self.options.easingamount;
								if(self.scrollinglock){


									clearinterval(self.loop);
									self.xp = self.windowleftpos;
									self.yp = self.windowtoppos            

									self.xp = ((e.pagex - self.nzoffset.left) * self.widthratio - self.zoomwindow.width() / 2) * (-1);
									self.yp = (((e.pagey - self.nzoffset.top) * self.heightratio - self.zoomwindow.height() / 2) * (-1));                         

									if(self.changebgsize){    
										if(self.nzheight>self.nzwidth){  
											if(self.options.zoomtype == "lens"){      
												self.zoomlens.css({ "background-size": self.largewidth/self.newvalueheight + 'px ' + self.largeheight/self.newvalueheight + 'px' });
											}   
											self.zoomwindow.css({ "background-size": self.largewidth/self.newvalueheight + 'px ' + self.largeheight/self.newvalueheight + 'px' });
										}
										else{   
											if(self.options.zoomtype != "lens"){      
												self.zoomlens.css({ "background-size": self.largewidth/self.newvaluewidth + 'px ' + self.largeheight/self.newvalueheight + 'px' });
											}            
											self.zoomwindow.css({ "background-size": self.largewidth/self.newvaluewidth + 'px ' + self.largeheight/self.newvaluewidth + 'px' });            

										}

										/*
             if(!self.bgxp){self.bgxp = self.largewidth/self.newvalue;}
						if(!self.bgyp){self.bgyp = self.largeheight/self.newvalue ;}  
                 if (!self.bgloop){   
                 	self.bgloop = setinterval(function(){   

                 self.bgxp += (self.largewidth/self.newvalue  - self.bgxp) / self.options.easingamount; 
								self.bgyp += (self.largeheight/self.newvalue  - self.bgyp) / self.options.easingamount;

           self.zoomwindow.css({ "background-size": self.bgxp + 'px ' + self.bgyp + 'px' });


                  }, 16);

                 }
										 */
										self.changebgsize = false;
									}

									self.zoomwindow.css({ backgroundposition: self.windowleftpos + 'px ' + self.windowtoppos + 'px' });
									self.scrollinglock = false;
									self.loop = false;

								}
								else if (math.round(math.abs(self.xp - self.windowleftpos) + math.abs(self.yp - self.windowtoppos)) < 1) {
									//stops micro movements
									clearinterval(self.loop);
									self.zoomwindow.css({ backgroundposition: self.windowleftpos + 'px ' + self.windowtoppos + 'px' });
									self.loop = false;
								}
								else{
									if(self.changebgsize){    
										if(self.nzheight>self.nzwidth){ 
											if(self.options.zoomtype == "lens"){      
												self.zoomlens.css({ "background-size": self.largewidth/self.newvalueheight + 'px ' + self.largeheight/self.newvalueheight + 'px' });
											}         
											self.zoomwindow.css({ "background-size": self.largewidth/self.newvalueheight + 'px ' + self.largeheight/self.newvalueheight + 'px' });
										}
										else{                 
											if(self.options.zoomtype != "lens"){     
												self.zoomlens.css({ "background-size": self.largewidth/self.newvaluewidth + 'px ' + self.largeheight/self.newvaluewidth + 'px' });
											}      
											self.zoomwindow.css({ "background-size": self.largewidth/self.newvaluewidth + 'px ' + self.largeheight/self.newvaluewidth + 'px' });            
										}
										self.changebgsize = false;
									}                   

									self.zoomwindow.css({ backgroundposition: self.xp + 'px ' + self.yp + 'px' });
								}       
							}, 16);
						}
					}   
					else{    
						if(self.changebgsize){  
							if(self.nzheight>self.nzwidth){  
								if(self.options.zoomtype == "lens"){      
									self.zoomlens.css({ "background-size": self.largewidth/self.newvalueheight + 'px ' + self.largeheight/self.newvalueheight + 'px' });
								} 

								self.zoomwindow.css({ "background-size": self.largewidth/self.newvalueheight + 'px ' + self.largeheight/self.newvalueheight + 'px' });
							}
							else{     
								if(self.options.zoomtype == "lens"){      
									self.zoomlens.css({ "background-size": self.largewidth/self.newvaluewidth + 'px ' + self.largeheight/self.newvaluewidth + 'px' });
								} 
								if((self.largeheight/self.newvaluewidth) < self.options.zoomwindowheight){ 

									self.zoomwindow.css({ "background-size": self.largewidth/self.newvaluewidth + 'px ' + self.largeheight/self.newvaluewidth + 'px' });            
								}
								else{

									self.zoomwindow.css({ "background-size": self.largewidth/self.newvalueheight + 'px ' + self.largeheight/self.newvalueheight + 'px' });   
								}

							}
							self.changebgsize = false;
						}     

						self.zoomwindow.css({ backgroundposition: self.windowleftpos + 'px ' + self.windowtoppos + 'px' });       
					}
				} 
			},
			settintposition: function(e){
				var self = this;
				self.nzoffset = self.$elem.offset();
				self.tintpos = string(((e.pagex - self.nzoffset.left)-(self.zoomlens.width() / 2)) * (-1)); 
				self.tintposy = string(((e.pagey - self.nzoffset.top) - self.zoomlens.height() / 2) * (-1));	
				if(self.etoppos){
					self.tintposy = 0;
				}
				if(self.eloppos){
					self.tintpos=0;
				}     
				if(self.eboppos){
					self.tintposy = (self.nzheight-self.zoomlens.height()-(self.options.lensbordersize*2))*(-1);
				} 
				if(self.eroppos){
					self.tintpos = ((self.nzwidth-self.zoomlens.width()-(self.options.lensbordersize*2))*(-1));
				}    
				if(self.options.tint) {
					//stops micro movements
					if(self.fullheight){
						self.tintposy = 0;

					}
					if(self.fullwidth){ 
						self.tintpos = 0;

					}   
					self.zoomtintimage.css({'left': self.tintpos+'px'});
					self.zoomtintimage.css({'top': self.tintposy+'px'});
				}
			},

			swaptheimage: function(smallimage, largeimage){
				var self = this;
				var newimg = new image(); 

				if(self.options.loadingicon){
					self.spinner = $('<div style="background: url(\''+self.options.loadingicon+'\') no-repeat center;height:'+self.nzheight+'px;width:'+self.nzwidth+'px;z-index: 2000;position: absolute; background-position: center center;"></div>');
					self.$elem.after(self.spinner);
				}

				self.options.onimageswap(self.$elem);

				newimg.onload = function() {
					self.largewidth = newimg.width;
					self.largeheight = newimg.height;
					self.zoomimage = largeimage;
					self.zoomwindow.css({ "background-size": self.largewidth + 'px ' + self.largeheight + 'px' });
					self.swapaction(smallimage, largeimage);
					return;              
				}          
				newimg.src = largeimage; // this must be done after setting onload

			},
			swapaction: function(smallimage, largeimage){


				var self = this;    

				var newimg2 = new image(); 
				newimg2.onload = function() {
					//re-calculate values
					self.nzheight = newimg2.height;
					self.nzwidth = newimg2.width;
					self.options.onimageswapcomplete(self.$elem);

					self.donecallback();  
					return;      
				}          
				newimg2.src = smallimage; 

				//reset the zoomlevel to that initially set in options
				self.currentzoomlevel = self.options.zoomlevel;
				self.options.maxzoomlevel = false;

				//swaps the main image
				//self.$elem.attr("src",smallimage);
				//swaps the zoom image     
				if(self.options.zoomtype == "lens") {
					self.zoomlens.css({ backgroundimage: "url('" + largeimage + "')" }); 
				}
				if(self.options.zoomtype == "window") {
					self.zoomwindow.css({ backgroundimage: "url('" + largeimage + "')" }); 
				}
				if(self.options.zoomtype == "inner") {
					self.zoomwindow.css({ backgroundimage: "url('" + largeimage + "')" }); 
				} 



				self.currentimage = largeimage;

				if(self.options.imagecrossfade){
					var oldimg = self.$elem;
					var newimg = oldimg.clone();         
					self.$elem.attr("src",smallimage)
					self.$elem.after(newimg);
					newimg.stop(true).fadeout(self.options.imagecrossfade, function() {
						$(this).remove();         
					});

					//       				if(self.options.zoomtype == "inner"){
					//remove any attributes on the cloned image so we can resize later
					self.$elem.width("auto").removeattr("width");
					self.$elem.height("auto").removeattr("height");
					//   }

					oldimg.fadein(self.options.imagecrossfade);

					if(self.options.tint && self.options.zoomtype != "inner") {

						var oldimgtint = self.zoomtintimage;
						var newimgtint = oldimgtint.clone();         
						self.zoomtintimage.attr("src",largeimage)
						self.zoomtintimage.after(newimgtint);
						newimgtint.stop(true).fadeout(self.options.imagecrossfade, function() {
							$(this).remove();         
						});



						oldimgtint.fadein(self.options.imagecrossfade);


						//self.zoomtintimage.attr("width",elem.data("image"));

						//resize the tint window
						self.zoomtint.css({ height: self.$elem.height()});
						self.zoomtint.css({ width: self.$elem.width()});
					}    

					self.zoomcontainer.css("height", self.$elem.height());
					self.zoomcontainer.css("width", self.$elem.width());

					if(self.options.zoomtype == "inner"){ 
						if(!self.options.constraintype){
							self.zoomwrap.parent().css("height", self.$elem.height());
							self.zoomwrap.parent().css("width", self.$elem.width());

							self.zoomwindow.css("height", self.$elem.height());
							self.zoomwindow.css("width", self.$elem.width());
						}
					} 

					if(self.options.imagecrossfade){  
						self.zoomwrap.css("height", self.$elem.height());
						self.zoomwrap.css("width", self.$elem.width());
					} 
				}
				else{
					self.$elem.attr("src",smallimage); 
					if(self.options.tint) {
						self.zoomtintimage.attr("src",largeimage);
						//self.zoomtintimage.attr("width",elem.data("image"));
						self.zoomtintimage.attr("height",self.$elem.height());
						//self.zoomtintimage.attr('src') = elem.data("image");
						self.zoomtintimage.css({ height: self.$elem.height()}); 
						self.zoomtint.css({ height: self.$elem.height()});

					}
					self.zoomcontainer.css("height", self.$elem.height());
					self.zoomcontainer.css("width", self.$elem.width());

					if(self.options.imagecrossfade){  
						self.zoomwrap.css("height", self.$elem.height());
						self.zoomwrap.css("width", self.$elem.width());
					} 
				}              
				if(self.options.constraintype){     

					//this will contrain the image proportions
					if(self.options.constraintype == "height"){ 

						self.zoomcontainer.css("height", self.options.constrainsize);
						self.zoomcontainer.css("width", "auto");

						if(self.options.imagecrossfade){  
							self.zoomwrap.css("height", self.options.constrainsize);
							self.zoomwrap.css("width", "auto"); 
							self.constwidth = self.zoomwrap.width();


						}
						else{                  
							self.$elem.css("height", self.options.constrainsize);
							self.$elem.css("width", "auto");
							self.constwidth = self.$elem.width();
						} 

						if(self.options.zoomtype == "inner"){

							self.zoomwrap.parent().css("height", self.options.constrainsize);
							self.zoomwrap.parent().css("width", self.constwidth);   
							self.zoomwindow.css("height", self.options.constrainsize);
							self.zoomwindow.css("width", self.constwidth);    
						}        
						if(self.options.tint){
							self.tintcontainer.css("height", self.options.constrainsize);
							self.tintcontainer.css("width", self.constwidth);
							self.zoomtint.css("height", self.options.constrainsize);
							self.zoomtint.css("width", self.constwidth);
							self.zoomtintimage.css("height", self.options.constrainsize);
							self.zoomtintimage.css("width", self.constwidth); 
						} 

					}
					if(self.options.constraintype == "width"){       
						self.zoomcontainer.css("height", "auto");
						self.zoomcontainer.css("width", self.options.constrainsize);

						if(self.options.imagecrossfade){
							self.zoomwrap.css("height", "auto");
							self.zoomwrap.css("width", self.options.constrainsize);
							self.constheight = self.zoomwrap.height();
						}
						else{            
							self.$elem.css("height", "auto");
							self.$elem.css("width", self.options.constrainsize); 
							self.constheight = self.$elem.height();              
						} 
						if(self.options.zoomtype == "inner"){
							self.zoomwrap.parent().css("height", self.constheight);
							self.zoomwrap.parent().css("width", self.options.constrainsize);   
							self.zoomwindow.css("height", self.constheight);
							self.zoomwindow.css("width", self.options.constrainsize);    
						} 
						if(self.options.tint){
							self.tintcontainer.css("height", self.constheight);
							self.tintcontainer.css("width", self.options.constrainsize);
							self.zoomtint.css("height", self.constheight);
							self.zoomtint.css("width", self.options.constrainsize);
							self.zoomtintimage.css("height", self.constheight);
							self.zoomtintimage.css("width", self.options.constrainsize); 
						}   

					}        


				}

			},
			donecallback: function(){

				var self = this;
				if(self.options.loadingicon){
					self.spinner.hide();     
				}   

				self.nzoffset = self.$elem.offset();
				self.nzwidth = self.$elem.width();
				self.nzheight = self.$elem.height();

				// reset the zoomlevel back to default
				self.currentzoomlevel = self.options.zoomlevel;

				//ratio of the large to small image
				self.widthratio = self.largewidth / self.nzwidth;
				self.heightratio = self.largeheight / self.nzheight; 

				//need to add the lens size for round
				// adjust images less than the window height
				if(self.options.zoomtype == "window") {

					if(self.nzheight < self.options.zoomwindowwidth/self.widthratio){
						lensheight = self.nzheight;  

					}
					else{
						lensheight = string((self.options.zoomwindowheight/self.heightratio))
					}

					if(self.options.zoomwindowwidth < self.options.zoomwindowwidth){
						lenswidth = self.nzwidth;
					}       
					else{
						lenswidth =  (self.options.zoomwindowwidth/self.widthratio);
					}


					if(self.zoomlens){

						self.zoomlens.css('width', lenswidth);    
						self.zoomlens.css('height', lensheight); 


					}
				}
			},
			getcurrentimage: function(){
				var self = this;  
				return self.zoomimage; 
			}, 
			getgallerylist: function(){
				var self = this;   
				//loop through the gallery options and set them in list for fancybox
				self.gallerylist = [];
				if (self.options.gallery){ 


					$('#'+self.options.gallery + ' a').each(function() {

						var img_src = '';
						if($(this).data("zoom-image")){
							img_src = $(this).data("zoom-image");
						}
						else if($(this).data("image")){
							img_src = $(this).data("image");
						}			
						//put the current image at the start
						if(img_src == self.zoomimage){
							self.gallerylist.unshift({
								href: ''+img_src+'',
								title: $(this).find('img').attr("title")
							});	
						}
						else{
							self.gallerylist.push({
								href: ''+img_src+'',
								title: $(this).find('img').attr("title")
							});
						}


					});
				}                                                       
				//if no gallery - return current image
				else{
					self.gallerylist.push({
						href: ''+self.zoomimage+'',
						title: $(this).find('img').attr("title")
					}); 
				}
				return self.gallerylist;

			},
			changezoomlevel: function(value){
				var self = this;   

				//flag a zoom, so can adjust the easing during setposition     
				self.scrollinglock = true;   

				//round to two decimal places
				self.newvalue = parsefloat(value).tofixed(2);
				newvalue = parsefloat(value).tofixed(2);




				//maxwidth & maxheight of the image
				maxheightnewvalue = self.largeheight/((self.options.zoomwindowheight / self.nzheight) * self.nzheight);     
				maxwidthtnewvalue = self.largewidth/((self.options.zoomwindowwidth / self.nzwidth) * self.nzwidth);   	




				//calculate new heightratio
				if(self.options.zoomtype != "inner")
				{
					if(maxheightnewvalue <= newvalue){
						self.heightratio = (self.largeheight/maxheightnewvalue) / self.nzheight;
						self.newvalueheight = maxheightnewvalue;
						self.fullheight = true;

					}
					else{
						self.heightratio = (self.largeheight/newvalue) / self.nzheight; 
						self.newvalueheight = newvalue;
						self.fullheight = false;

					}


//					calculate new width ratio

					if(maxwidthtnewvalue <= newvalue){
						self.widthratio = (self.largewidth/maxwidthtnewvalue) / self.nzwidth;
						self.newvaluewidth = maxwidthtnewvalue;
						self.fullwidth = true;

					}
					else{
						self.widthratio = (self.largewidth/newvalue) / self.nzwidth; 
						self.newvaluewidth = newvalue;
						self.fullwidth = false;

					}
					if(self.options.zoomtype == "lens"){
						if(maxheightnewvalue <= newvalue){
							self.fullwidth = true;
							self.newvaluewidth = maxheightnewvalue;

						} else{
							self.widthratio = (self.largewidth/newvalue) / self.nzwidth; 
							self.newvaluewidth = newvalue;

							self.fullwidth = false;
						}}
				}



				if(self.options.zoomtype == "inner")
				{
					maxheightnewvalue = parsefloat(self.largeheight/self.nzheight).tofixed(2);     
					maxwidthtnewvalue = parsefloat(self.largewidth/self.nzwidth).tofixed(2);      
					if(newvalue > maxheightnewvalue){
						newvalue = maxheightnewvalue;
					}
					if(newvalue > maxwidthtnewvalue){
						newvalue = maxwidthtnewvalue;
					}      


					if(maxheightnewvalue <= newvalue){


						self.heightratio = (self.largeheight/newvalue) / self.nzheight; 
						if(newvalue > maxheightnewvalue){
							self.newvalueheight = maxheightnewvalue;
						}else{
							self.newvalueheight = newvalue;
						}
						self.fullheight = true;


					}
					else{



						self.heightratio = (self.largeheight/newvalue) / self.nzheight; 

						if(newvalue > maxheightnewvalue){

							self.newvalueheight = maxheightnewvalue;
						}else{
							self.newvalueheight = newvalue;
						}
						self.fullheight = false;
					}




					if(maxwidthtnewvalue <= newvalue){   

						self.widthratio = (self.largewidth/newvalue) / self.nzwidth; 
						if(newvalue > maxwidthtnewvalue){

							self.newvaluewidth = maxwidthtnewvalue;
						}else{
							self.newvaluewidth = newvalue;
						}

						self.fullwidth = true;


					}
					else{  

						self.widthratio = (self.largewidth/newvalue) / self.nzwidth; 
						self.newvaluewidth = newvalue;
						self.fullwidth = false;
					}        


				} //end inner
				scrcontinue = false;

				if(self.options.zoomtype == "inner"){

					if(self.nzwidth >= self.nzheight){
						if( self.newvaluewidth <= maxwidthtnewvalue){
							scrcontinue = true;
						}
						else{

							scrcontinue = false;
							self.fullheight = true;
							self.fullwidth = true;
						}
					}
					if(self.nzheight > self.nzwidth){     
						if( self.newvaluewidth <= maxwidthtnewvalue){
							scrcontinue = true;
						}
						else{
							scrcontinue = false;  

							self.fullheight = true;
							self.fullwidth = true;
						}
					}
				}

				if(self.options.zoomtype != "inner"){
					scrcontinue = true;
				}

				if(scrcontinue){



					self.zoomlock = 0;
					self.changezoom = true;

					//if lens height is less than image height


					if(((self.options.zoomwindowheight)/self.heightratio) <= self.nzheight){


						self.currentzoomlevel = self.newvalueheight; 
						if(self.options.zoomtype != "lens" && self.options.zoomtype != "inner") {
							self.changebgsize = true;

							self.zoomlens.css({height: string((self.options.zoomwindowheight)/self.heightratio) + 'px' }) 
						}
						if(self.options.zoomtype == "lens" || self.options.zoomtype == "inner") {  
							self.changebgsize = true;  
						}	


					} 




					if((self.options.zoomwindowwidth/self.widthratio) <= self.nzwidth){



						if(self.options.zoomtype != "inner"){
							if(self.newvaluewidth > self.newvalueheight)   {
								self.currentzoomlevel = self.newvaluewidth;                 

							}
						}

						if(self.options.zoomtype != "lens" && self.options.zoomtype != "inner") {
							self.changebgsize = true;

							self.zoomlens.css({width: string((self.options.zoomwindowwidth)/self.widthratio) + 'px' })
						}
						if(self.options.zoomtype == "lens" || self.options.zoomtype == "inner") {  
							self.changebgsize = true;
						}	

					}
					if(self.options.zoomtype == "inner"){
						self.changebgsize = true;  

						if(self.nzwidth > self.nzheight){
							self.currentzoomlevel = self.newvaluewidth;
						}
						if(self.nzheight > self.nzwidth){
							self.currentzoomlevel = self.newvaluewidth;
						}
					}

				}      //under

				//sets the boundry change, called in setwindowpos
				self.setposition(self.currentloc);
				//
			},
			closeall: function(){
				if(self.zoomwindow){self.zoomwindow.hide();}
				if(self.zoomlens){self.zoomlens.hide();}
				if(self.zoomtint){self.zoomtint.hide();}
			},
			changestate: function(value){
      	var self = this;
				if(value == 'enable'){self.options.zoomenabled = true;}
				if(value == 'disable'){self.options.zoomenabled = false;}

			}

	};




	$.fn.elevatezoom = function( options ) {
		return this.each(function() {
			var elevate = object.create( elevatezoom );

			elevate.init( options, this );

			$.data( this, 'elevatezoom', elevate );

		});
	};

	$.fn.elevatezoom.options = {
			zoomactivation: "hover", // can also be click (placeholder for next version)
      zoomenabled: true, //false disables zoomwindow from showing
			preloading: 1, //by default, load all the images, if 0, then only load images after activated (placeholder for next version)
			zoomlevel: 1, //default zoom level of image
			scrollzoom: false, //allow zoom on mousewheel, true to activate
			scrollzoomincrement: 0.1,  //steps of the scrollzoom
			minzoomlevel: false,
			maxzoomlevel: false,
			easing: false,
			easingamount: 12,
			lenssize: 200,
			zoomwindowwidth: 400,
			zoomwindowheight: 400,
			zoomwindowoffetx: 0,
			zoomwindowoffety: 0,
			zoomwindowposition: 1,
			zoomwindowbgcolour: "#fff",
			lensfadein: false,
			lensfadeout: false,
			debug: false,
			zoomwindowfadein: false,
			zoomwindowfadeout: false,
			zoomwindowalwaysshow: false,
			zoomtintfadein: false,
			zoomtintfadeout: false,
			bordersize: 4,
			showlens: true,
			bordercolour: "#888",
			lensbordersize: 1,
			lensbordercolour: "#000",
			lensshape: "square", //can be "round"
			zoomtype: "window", //window is default,  also "lens" available -
			containlenszoom: false,
			lenscolour: "white", //colour of the lens background
			lensopacity: 0.4, //opacity of the lens
			lenszoom: false,
			tint: false, //enable the tinting
			tintcolour: "#333", //default tint color, can be anything, red, #ccc, rgb(0,0,0)
			tintopacity: 0.4, //opacity of the tint
			gallery: false,
			galleryactiveclass: "zoomgalleryactive",
			imagecrossfade: false,
			constraintype: false,  //width or height
			constrainsize: false,  //in pixels the dimensions you want to constrain on
			loadingicon: false, //http://www.example.com/spinner.gif
			cursor:"default", // user should set to what they want the cursor as, if they have set a click function
			responsive:true,
			oncomplete: $.noop,
      ondestroy: function() {},
			onzoomedimageloaded: function() {},
			onimageswap: $.noop,
			onimageswapcomplete: $.noop
	};

})( jquery, window, document );