(function($){var has_VML,create_canvas_for,add_shape_to,clear_canvas,shape_from_area,canvas_style,fader,hex_to_decimal,css3color,is_image_loaded,options_from_area;has_VML=document.namespaces;has_canvas=!!document.createElement('canvas').getContext;if(!(has_canvas||has_VML)){$.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,name){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){canvas.getContext('2d').clearRect(0,0,canvas.width,canvas.height)}}else{create_canvas_for=function(img){return $('<var style="zoom:1;overflow:hidden;display:block;width:'+img.width+'px;height:'+img.height+'px;"></var>').get(0)};add_shape_to=function(canvas,shape,coords,options,name){var fill,stroke,opacity,e;fill='<v:fill color="#'+options.fillColor+'" opacity="'+(options.fill?options.fillOpacity:0)+'" />';stroke=(options.stroke?'strokeweight="'+options.strokeWidth+'" stroked="t" strokecolor="#'+options.strokeColor+'"':'stroked="f"');opacity='<v:stroke opacity="'+options.strokeOpacity+'"/>';if(shape=='rect'){e=$('<v:rect name="'+name+'" 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=$('<v:shape name="'+name+'" filled="t" '+stroke+' coordorigin="0,0" coordsize="'+canvas.width+','+canvas.height+'" path="m '+coords[0]+','+coords[1]+' l '+coords.join(',')+' x e" style="zoom:1;margin:0;padding:0;display:block;position:absolute;top:0px;left:0px;width:'+canvas.width+'px;height:'+canvas.height+'px;"></v:shape>')}else if(shape=='circ'){e=$('<v:oval name="'+name+'" 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;$(canvas).append(e)};clear_canvas=function(canvas){$(canvas).find('[name=highlighted]').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]};options_from_area=function(area,options){var $area=$(area);return $.extend({},options,$.metadata?$area.metadata():false,$area.data('maphilight'))};is_image_loaded=function(img){if(!img.complete){return false}if(typeof img.naturalWidth!="undefined"&&img.naturalWidth==0){return false}return true};canvas_style={position:'absolute',left:0,top:0,padding:0,border:0};var ie_hax_done=false;$.fn.maphilight=function(opts){opts=$.extend({},$.fn.maphilight.defaults,opts);if($.browser.msie&&!ie_hax_done){document.namespaces.add("v","urn:schemas-microsoft-com:vml");var style=document.createStyleSheet();var shapes=['shape','rect','oval','circ','fill','stroke','imagedata','group','textbox'];$.each(shapes,function(){style.addRule('v\\:'+this,"behavior: url(#default#VML); antialias:true")});ie_hax_done=true}return this.each(function(){var img,wrap,options,map,canvas,canvas_always,mouseover,highlighted_shape,usemap;img=$(this);if(!is_image_loaded(this)){return window.setTimeout(function(){img.maphilight(opts)},200)}options=$.extend({},opts,$.metadata?img.metadata():false,img.data('maphilight'));usemap=img.get(0).getAttribute('usemap');map=$('map[name="'+usemap.substr(1)+'"]');if(!(img.is('img')&&usemap&&map.size()>0)){return}if(img.hasClass('maphilighted')){var wrapper=img.parent();img.insertBefore(wrapper);wrapper.remove();$(map).unbind('.maphilight').find('area[coords]').unbind('.maphilight')}wrap=$('<div></div>').css({display:'block',background:'url('+this.src+')',position:'relative',padding:0,width:this.width,height:this.height});if(options.wrapClass){if(options.wrapClass===true){wrap.addClass($(this).attr('class'))}else{wrap.addClass(options.wrapClass)}}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;mouseover=function(e){var shape,area_options;area_options=options_from_area(this,options);if(!area_options.neverOn&&!area_options.alwaysOn){shape=shape_from_area(this);add_shape_to(canvas,shape[0],shape[1],area_options,"highlighted");if(area_options.groupBy&&$(this).attr(area_options.groupBy)){var first=this;map.find('area['+area_options.groupBy+'='+$(this).attr(area_options.groupBy)+']').each(function(){if(this!=first){var subarea_options=options_from_area(this,options);if(!subarea_options.neverOn&&!subarea_options.alwaysOn){var shape=shape_from_area(this);add_shape_to(canvas,shape[0],shape[1],subarea_options,"highlighted")}}})}}};clearCanvas=function(){if(!$.browser.msie&&(has_canvas&&canvas_always)){clear_canvas(canvas_always)}else if($.browser.msie){$(canvas).empty()}};$(this).bind('clearCanvas.maphilight',clearCanvas);$('area',map).each(function(i){if(canvas_always){clear_canvas(canvas_always)}if(!has_canvas){$(canvas).empty()}$(this).bind('alwaysOn.maphilight',function(){var shape,area_options;area_options=options_from_area(this,options);if(area_options.alwaysOn){if(!canvas_always&&has_canvas){canvas_always=create_canvas_for(img.get());$(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(has_canvas){add_shape_to(canvas_always,shape[0],shape[1],area_options,"")}else{add_shape_to(canvas,shape[0],shape[1],area_options,"")}}})});if(options.alwaysOn){$(map).find('area[coords]').each(mouseover)}else{$(map).find('area[coords]').trigger('alwaysOn.maphilight').bind('mouseover.maphilight',mouseover).bind('mouseout.maphilight',function(e){clear_canvas(canvas)})}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,neverOn:false,groupBy:false,wrapClass:true}})(jQuery);