//**************************************************************
// jQZoom allows you to realize a small magnifier window,close
// to the image or images on your web page easily.
//
// jqZoom version 2.2
// Author Doc. Ing. Renzi Marco(www.mind-projects.it)
// First Release on Dec 05 2007
// i'm looking for a job,pick me up!!!
// mail: renzi.mrc@gmail.com

// modified by LZ and MSS, October 27 2008
// - added a if statement for IE 6 so there is no fade out, instead display:block. Prevents input fields rendering above the zoomed image
// - lost the invalid "jqimg" attribute, just uses the original image src with a different suffix 
// - added custom position variables and the ability to fade an element during zoom
//**************************************************************

(function($){

		$.fn.jqueryzoom = function(options){

		var settings = {
				xzoom: 200,		//zoomed width default width
				yzoom: 200,		//zoomed div default width
				offset: 10,		//zoomed div default offset
				position: "right" ,//zoomed div default position,offset position is to the right of the image
				lens:1, //zooming lens over the image,by default is 1;
				preload: 1,	// option to preload zoom image
				positionTop: 0,		// passes css top property
				positionLeft: 300,	// passes css left property
				hideElement: ""		// selector for element to hide using visibility: hidden
			};

			if(options) {
				$.extend(settings, options);
			}

		    var noalt='';

		    $(this).hoverIntent(function(){
                
				var imageLeft = $(this).offset().left;                
				var imageTop = $(this).offset().top;

				   
				var imageWidth = $(this).children('img').get(0).offsetWidth;
				var imageHeight = $(this).children('img').get(0).offsetHeight;


				noalt= $(this).children("img").attr("alt");

				var imageSrc = $(this).children("img").attr("src");
				var bigimage = imageSrc.replace(/_p.jpg/i,'_xl.jpg');

				$(this).children("img").attr("alt",'');

				if($("div.zoomdiv").get().length == 0){

					$(this).after("<div class='zoomdiv'><img class='bigimg' src='"+bigimage+"'/></div>");
					$(this).append("<div class='jqZoomPup'>&nbsp;</div>");

			    }


				if(settings.position == "right"){

					if(imageLeft + imageWidth + settings.offset + settings.xzoom > screen.width){

						leftpos = imageLeft  - settings.offset - settings.xzoom;

					}else{

						leftpos = imageLeft + imageWidth + settings.offset;
					}
				}else{
					leftpos = imageLeft - settings.xzoom - settings.offset;
					if(leftpos < 0){

						leftpos = imageLeft + imageWidth  + settings.offset;

					}

			    }

				// $("div.zoomdiv").css({ top: imageTop,left: leftpos });	// this line just doesn't work for us
				$("div.zoomdiv").css({ top: settings.positionTop, left: settings.positionLeft });

				$("div.zoomdiv").width(settings.xzoom);

				$("div.zoomdiv").height(settings.yzoom);

				$("div.zoomdiv").show();

				if(!settings.lens){
					$(this).css('cursor','crosshair');
				}

				$(document.body).mousemove(function(e){

					mouse = new MouseEvent(e);

					/*$("div.jqZoomPup").hide();*/

				    var bigwidth = $(".bigimg").get(0).offsetWidth;
				    var bigheight = $(".bigimg").get(0).offsetHeight;
				    var scaley ='x';
				    var scalex= 'y';

				    if(isNaN(scalex)|isNaN(scaley)){

					    var scalex = (bigwidth/imageWidth);

					    var scaley = (bigheight/imageHeight);

					    $("div.jqZoomPup").width((settings.xzoom)/scalex );

			    		$("div.jqZoomPup").height((settings.yzoom)/scaley);

	                    if(settings.lens){
							$("div.jqZoomPup").css('visibility','visible');
						}

					}

                    xpos = mouse.x - $("div.jqZoomPup").width()/2 - imageLeft;

                    ypos = mouse.y - $("div.jqZoomPup").height()/2 - imageTop ;

                    if(settings.lens){

	                    xpos = (mouse.x - $("div.jqZoomPup").width()/2 < imageLeft ) ? 0 : (mouse.x + $("div.jqZoomPup").width()/2 > imageWidth + imageLeft ) ?  (imageWidth -$("div.jqZoomPup").width() -2)  : xpos;
						ypos = (mouse.y - $("div.jqZoomPup").height()/2 < imageTop ) ? 0 : (mouse.y + $("div.jqZoomPup").height()/2  > imageHeight + imageTop ) ?  (imageHeight - $("div.jqZoomPup").height() -2 ) : ypos;

                    }

                    if(settings.lens){

						$("div.jqZoomPup").css({ top: ypos,left: xpos });

                    }

					scrolly = ypos;

					$("div.zoomdiv").get(0).scrollTop = scrolly * scaley;

					scrollx = xpos;

					$("div.zoomdiv").get(0).scrollLeft = (scrollx) * scalex ;

				});

				if ($.browser.msie) {
					$(settings.hideElement).css("visibility", "hidden");
				} else {
          $(settings.hideElement).css("opacity",.3);
				}
				

		    },function(){

				$(this).children("img").attr("alt",noalt);
				$(document.body).unbind("mousemove");
				if(settings.lens){
					$("div.jqZoomPup").remove();
				}
				$("div.zoomdiv").remove();
				
        if($.browser.msie) {
         $(settings.hideElement).css('visibility', 'visible');
        } else {
         $(settings.hideElement).fadeTo("normal",1);
        }

				

		    });

	        count = 0;

			if(settings.preload){

				$('body').append("<div style='display:none;' class='jqPreload"+count+"'>sdsdssdsd</div>");

				$(this).each(function(){

		        var imagetopreload= $(this).children("img").attr("src").replace(/_p.jpg/i,'_xl.jpg');

		        var content = jQuery('div.jqPreload'+count+'').html();

		        jQuery('div.jqPreload'+count+'').html(content+'<img src=\"'+imagetopreload+'\">');

				});

			}

		}

})(jQuery);

function MouseEvent(e) {
this.x = e.pageX;
this.y = e.pageY;


}