//**************************************************************
// basat en jQZoom aquest et permet fer el zoom sobre la mateixa imatge
//
// jqZoom version 2.2
// Author Doc. Ing. Renzi Marco(www.mind-projects.it)
// First Release on Dec 05 2007
// mail: renzi.mrc@gmail.com
// jqZoom2 versio 1.0
// Author Vivian Peñarroja (www.arluksoft.com)
//**************************************************************

(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
                                };
                                if(options) {
                                        $.extend(settings, options);
                                }
                                var noalt='';
                                $(this).hover(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 bigimage = $(this).children("img").attr("jqimg");
                                                $(this).children("img").attr("alt",'');
                                                if($("div.zoomdiv").get().length == 0){
                                                            $(this).append("<div class='zoomdiv'><img class='bigimg' src='"+bigimage+"'/></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 });
                                                $("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);
                                                                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.zoomdiv").width((settings.xzoom)/scalex );
                                                                                $("div.zoomdiv").height((settings.xzoom)/scalex );
                                                                                $("div.zoomdiv").width(150 );
                                                                                $("div.zoomdiv").height(150);
                                                                                if(settings.lens){
                                                                                                $("div.jqZoomPup").css('visibility','visible');
                                                                                }
                                                                }
                                                                xpos2 = mouse.x - $("div.zoomdiv").width()/2 - imageLeft;
                                                                ypos2 = mouse.y - $("div.zoomdiv").height()/2 - imageTop ;
                                                                if(settings.lens){
                                                                                xpos2 = (mouse.x - $("div.zoomdiv").width()/2 < imageLeft ) ? 0 : (mouse.x + $("div.zoomdiv").width()/2 > imageWidth + imageLeft ) ?  (imageWidth -$("div.zoomdiv").width()-2)  : xpos2;
                                                                                ypos2 = (mouse.y - $("div.zoomdiv").height()/2 < imageTop ) ? 0 : (mouse.y + $("div.zoomdiv").height()/2  > imageHeight + imageTop ) ?  (imageHeight - $("div.zoomdiv").height() -2 ) : ypos2;
                                                                }
                                                                if(settings.lens){
                                                                                $("div.zoomdiv").css({ top: ypos2,left: xpos2 });
                                                                }
                                                                var scalex = (bigwidth/imageWidth);
                                                                var scaley = (bigheight/imageHeight);
                                                                scrolly=mouse.y- imageTop;
                                                                $("div.zoomdiv").get(0).scrollTop = scrolly * scaley-75;
                                                                scrollx=mouse.x- imageLeft;
                                                                $("div.zoomdiv").get(0).scrollLeft = (scrollx) * scalex-75;
                                               });
                                },
                                function(){
                                                $(this).children("img").attr("alt",noalt);
                                                $(document.body).unbind("mousemove");
                                                $("div.zoomdiv").remove();
                                }
                                );
                                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("jqimg");
                                                                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;


}