jQuery.fn.extend({shadow:function(options){DropShadow(this,options);}});function DropShadow(element,options){var cornerHeight=8;var width=4;var startOpacity=80;var endOpacity=20;var color="black";if(options){if(options["cornerHeight"]!=null)cornerHeight=parseInt(options["cornerHeight"]);if(options["width"]!=null)width=parseInt(options["width"]);if(options["startOpacity"]!=null)startOpacity=parseFloat(options["startOpacity"]);if(options["endOpacity"]!=null)endOpacity=parseFloat(options["endOpacity"]);if(options["color"]!=null)color=options["color"];if(startOpacity<1)startOpacity=Math.round(startOpacity*100);if(endOpacity<1)endOpacity=Math.round(endOpacity*100);}if($(element.id+"_shadow").length>0)$(element.id+"_shadow").remove();element=$(element);var id=element[0].id+"_shadow";var html="<div id='"+id+"' style='";if(element.css("position")=="absolute"||element.css("position")=="relative"){html+="position: "+element.css("position")+"; ";element.css("position","");}if(element.css("top")){html+="top:"+element.css("top")+"; ";element.css("top","");}if(element.css("left")){html+="left:"+element.css("left")+"; ";element.css("left","");}html+="'><table style='float:left;' cellpadding='0px' cellspacing='0px'><tr class='shadowFirstRow'>"+"<td colspan='2' rowspan='2'></td></tr></table></div>";element.wrap(html);html="<td colspan='"+width+"' style='width:"+width+"px; height:"+cornerHeight+"px;'><table cellpadding='0px' cellspacing='0px'>";var opacity=startOpacity;for(var i=0;i<cornerHeight;i++){html+="<tr>";for(var j=0;j<width;j++){opacity=Math.round((i-j*(cornerHeight/width))*10);if(opacity<0)opacity=0;else if(opacity<10)opacity="0"+opacity;html+="<td style='height:1px; width:1px; background-color: "+color+"; opacity:0."+opacity+"; filter:Alpha(opacity="+opacity+");'></td>"}html+="</tr>";}html+="</table></td>";$("#"+id).children().children().children(".shadowFirstRow").append(html);html="<tr>";for(var i=startOpacity;i>=endOpacity;i-=(startOpacity-endOpacity)/(width-1)){opacity=Math.round(i);if(opacity<10)opacity="0"+opacity;html+="<td style='background-color:"+color+"; padding:0px; margin:0px; height:"+(element.height()-cornerHeight+12)+"px; opacity:0."+opacity+"; filter:Alpha(opacity="+opacity+");'></td>";}html+="</tr>";html+="<tr><td rowspan='"+width+"' style='width:"+cornerHeight+"px; height:"+width+"px;'><table cellpadding='0px' cellspacing='0px'>";for(var i=0;i<width;i++){html+="<tr>";for(var j=0;j<cornerHeight;j++){opacity=Math.round((0-i*(cornerHeight/width)+j)*10);if(opacity<0)opacity=0;else if(opacity<10)opacity="0"+opacity;html+="<td style='width:1px; height:1px; background-color:"+color+"; opacity:0."+opacity+"; filter:Alpha(opacity="+opacity+");'></td>";}html+="</tr>";}html+="</table></td>";var temp=element.width()+4;if($.browser.msie)temp-=cornerHeight+4;for(var i=startOpacity;i>=endOpacity;i-=(startOpacity-endOpacity)/(width-1)){if(i!=startOpacity)html+="<tr>";opacity=Math.round(i);if(opacity<10)opacity="0"+opacity;html+="<td style='height:1px; width:"+temp+"px; background-color:"+color+"; opacity:0."+opacity+"; filter:Alpha(opacity="+opacity+");'></td>";for(var j=startOpacity;j>=endOpacity;j-=(startOpacity-endOpacity)/(width-1)){opacity=Math.round(j);if(opacity>i)opacity=Math.round(i);if(opacity<10)opacity="0"+opacity;html+="<td style='width:1px; height:1px; background-color:"+color+"; opacity:0."+opacity+"; filter:Alpha(opacity="+opacity+");'></td>";}html+="</tr>";}$("#"+id).children("table").append(html);}