(function($){var has_VML,create_canvas_for,add_shape_to,clear_canvas,shape_from_area,canvas_style,fader,hex_to_decimal,css3color,is_image_loaded;has_VML=document.namespaces;has_canvas=document.createElement('canvas');has_canvas=has_canvas&&has_canvas.getContext;var highlightedItems=new Array();var currentState=0;if(!(has_canvas||has_VML)){$.fn.maphilight=function(){return this;};return;}
if(has_canvas){fader=function(element,opacity,interval){if(opacity<=1){element.style.opacity=opacity;window.setTimeout(fader,10,element,opacity+0.1,10);}};hex_to_decimal=function(hex){return Math.max(0,Math.min(parseInt(hex,16),255));};css3color=function(color,opacity){return'rgba('+hex_to_decimal(color.substr(0,2))+','+hex_to_decimal(color.substr(2,2))+','+hex_to_decimal(color.substr(4,2))+','+opacity+')';};create_canvas_for=function(img){var c=$('<canvas style="width:'+img.width+'px;height:'+img.height+'px;"></canvas>').get(0);c.getContext("2d").clearRect(0,0,c.width,c.height);return c;};add_shape_to=function(canvas,shape,coords,options){var i,context=canvas.getContext('2d');context.beginPath();if(shape=='rect'){context.rect(coords[0],coords[1],coords[2]-coords[0],coords[3]-coords[1]);}else if(shape=='poly'){context.moveTo(coords[0],coords[1]);for(i=2;i<coords.length;i+=2){context.lineTo(coords[i],coords[i+1]);}}else if(shape=='circ'){context.arc(coords[0],coords[1],coords[2],0,Math.PI*2,false);}
context.closePath();if(options.fill){context.fillStyle=css3color(options.fillColor,options.fillOpacity);context.fill();}
if(options.stroke){context.strokeStyle=css3color(options.strokeColor,options.strokeOpacity);context.lineWidth=options.strokeWidth;context.stroke();}
if(options.fade){fader(canvas,0);}};clear_canvas=function(canvas,area,options){canvas.getContext('2d').clearRect(0,0,canvas.width,canvas.height);};}else{document.namespaces.add("v","urn:schemas-microsoft-com:vml");var style=document.createStyleSheet();var shapes=['shape','rect','oval','circ','fill','stroke','imagedata','group','textbox'];$.each(shapes,function(){style.addRule('v\\:'+this,"behavior: url(#default#VML); antialias:true");});create_canvas_for=function(img){return $('<var id="vmlcanvas" style="zoom:1;overflow:hidden;display:block;width:'+img.width+'px;height:'+img.height+'px;"></var>').get(0);};add_shape_to=function(canvas,shape,coords,options){var fill,stroke,opacity,e;var id=options.id;fill='<v:fill id="vmlcolor_'+id+'" color="#'+options.fillColor+'" opacity="'+(options.fill?options.fillOpacity:0)+'" />';stroke=(options.stroke?'strokeweight="'+options.strokeWidth+'" stroked="t" strokecolor="#'+options.strokeColor+'"':'stroked="f"');opacity='<v:stroke id="vmlopacity_'+id+'" opacity="'+options.strokeOpacity+'"/>';if(shape=='rect'){e=$('<v:rect id="vmlshape_'+id+'" filled="t" '+stroke+' style="zoom:1;margin:0;padding:0;display:block;position:absolute;left:'+coords[0]+'px;top:'+coords[1]+'px;width:'+(coords[2]-coords[0])+'px;height:'+(coords[3]-coords[1])+'px;"></v:rect>');}else if(shape=='poly'){e=$('<v:shape id="vmlshape_'+id+'" filled="t" '+stroke+' coordorigin="0,0" coordsize="'+canvas.width+','+canvas.height+'" path="m '+coords[0]+','+coords[1]+' l '+coords.join(',')+' x e" style="zoom:1;margin:0;padding:0;display:block;position:absolute;top:0px;left:0px;width:'+canvas.width+'px;height:'+canvas.height+'px;"></v:shape>');}else if(shape=='circ'){e=$('<v:oval id="vmlshape_'+id+'" filled="t" '+stroke+' style="zoom:1;margin:0;padding:0;display:block;position:absolute;left:'+(coords[0]-coords[2])+'px;top:'+(coords[1]-coords[2])+'px;width:'+(coords[2]*2)+'px;height:'+(coords[2]*2)+'px;"></v:oval>');}
e.get(0).innerHTML=fill+opacity;if(is_highlighted(id,options))
{for(highlight in highlightedItems)
{if(highlightedItems[highlight]==id)
{return;}}
highlightedItems.push(id);}
$(canvas).append(e);};clear_canvas=function(canvas,area,options){if(!is_highlighted(area.id,options))
{$('#vmlcolor_'+area.id).remove();$('#vmlopacity_'+area.id).remove();$('#vmlshape_'+area.id).remove();}};}
shape_from_area=function(area){var i,coords=area.getAttribute('coords').split(',');for(i=0;i<coords.length;i++){coords[i]=parseFloat(coords[i]);}
return[area.getAttribute('shape').toLowerCase().substr(0,4),coords];};is_image_loaded=function(img){if(!img.complete){return false;}
if(typeof img.naturalWidth!="undefined"&&img.naturalWidth==0){return false;}
return true;}
is_highlighted=function(id,options){if(options.highlightedArray.length>0)
{}
for(highlight in options.highlightedArray)
{if(options.highlightedArray[highlight]==id)
{return true;}}
return false;}
canvas_style={position:'absolute',left:0,top:0,padding:0,border:0};$.fn.maphilight=function(opts){opts=$.extend({},$.fn.maphilight.defaults,opts);currentState++;highlightedItems.length=0;return this.each(function(){var img,wrap,options,map,canvas,canvas_always,mouseover;img=$(this);if(!is_image_loaded(this)){return window.setTimeout(function(){img.maphilight(opts);},200);}
options=$.metadata?$.extend({},opts,img.metadata()):opts;map=$('map[name="'+img.attr('usemap').substr(1)+'"]');if(!(img.is('img')&&img.attr('usemap')&&map.size()>0&&!img.hasClass('maphilighted'))){return;}
wrap=$('<div>').css({display:'block',background:'url('+this.src+')',position:'relative',padding:0,width:this.width,height:this.height});img.before(wrap).css('opacity',0).css(canvas_style).remove();if($.browser.msie){img.css('filter','Alpha(opacity=0)');}
wrap.append(img);canvas=create_canvas_for(this);$(canvas).css(canvas_style);canvas.height=this.height;canvas.width=this.width;options.currentState=currentState;mouseover=function(e){var shape,area_options;area_options=$.metadata?$.extend({},options,$(this).metadata()):options;if(!area_options.alwaysOn){shape=shape_from_area(this);area_options.id=this.id;area_options.highlightedItems=highlightedItems;if(is_highlighted(this.id,options))
{area_options.fillColor=options.highlightedFill;area_options.strokeColor=options.highlightedFill;area_options.strokeWidth=(options.strokeWidth*2);}
add_shape_to(canvas,shape[0],shape[1],area_options);}};mouseout=function(e){clear_canvas(canvas,this,options);};if(options.alwaysOn){$(map).find('area[coords]').each(mouseover);}else{if($.metadata){$(map).find('area[coords]').each(function(){var shape,area_options;area_options=$.metadata?$.extend({},options,$(this).metadata()):options;area_options.id=this.id;var highlighted=is_highlighted(this.id,options);if(area_options.alwaysOn||highlighted){if(has_VML)
{canvas_always=canvas;}
else
{if(!canvas_always){canvas_always=create_canvas_for(img.get());$(canvas_always).css(canvas_style);canvas_always.width=img.width();canvas_always.height=img.height();img.before(canvas_always);}}
shape=shape_from_area(this);if(highlighted)
{area_options.fillColor=options.highlightedFill;area_options.strokeColor=options.highlightedFill;area_options.strokeWidth=(options.strokeWidth*2);}
add_shape_to(canvas_always,shape[0],shape[1],area_options);}})}
$(map).find('area[coords]').unbind('mouseover');$(map).find('area[coords]').unbind('mouseout');$(map).find('area[coords]').mouseover(mouseover).mouseout(mouseout);}
img.before(canvas);img.addClass('maphilighted');});};$.fn.maphilight.defaults={fill:true,fillColor:'000000',fillOpacity:0.2,stroke:true,strokeColor:'ff0000',strokeOpacity:1,strokeWidth:1,fade:true,alwaysOn:false,highlightedArray:null,highlightedFill:'ff0000'};})(jQuery);