(function($){$.fn.shadowEnable=function(){return $(this).find("+ .fx-shadow").show().end();};$.fn.shadowDisable=function(){return $(this).find("+ .fx-shadow").hide().end();};$.fn.shadowDestroy=function(){return $(this).find("+ .fx-shadow").remove().end();};$.fn.shadow=function(options){options=$.extend({offset:1,opacity:0.2,color:"#000",monitor:false},options||{});options.offset-=1;return this.each(function(){var $element=$(this).shadowDestroy(),$shadow=$("<div class='fx-shadow' style='position: relative;'></div>").hide().insertAfter($element);baseWidth=$element.outerWidth(),baseHeight=$element.outerHeight(),position=$element.position(),zIndex=parseInt($element.css("zIndex"))||0;$('<div class="fx-shadow-color fx-shadow-layer-1"></div>').css({position:'absolute',opacity:options.opacity-0.05,left:options.offset,top:options.offset,width:baseWidth+1,height:baseHeight+1}).appendTo($shadow);$('<div class="fx-shadow-color fx-shadow-layer-2"></div>').css({position:'absolute',opacity:options.opacity-0.10,left:options.offset+2,top:options.offset+2,width:baseWidth,height:baseHeight-3}).appendTo($shadow);$('<div class="fx-shadow-color fx-shadow-layer-3"></div>').css({position:'absolute',opacity:options.opacity-0.10,left:options.offset+2,top:options.offset+2,width:baseWidth-3,height:baseHeight}).appendTo($shadow);$('<div class="fx-shadow-color fx-shadow-layer-4"></div>').css({position:'absolute',opacity:options.opacity,left:options.offset+1,top:options.offset+1,width:baseWidth-1,height:baseHeight-1}).appendTo($shadow);$("div.fx-shadow-color",$shadow).css("background-color",options.color);$element.css({zIndex:zIndex+1,position:($element.css("position")=="static"?"relative":"")});$shadow.css({position:"absolute",zIndex:zIndex,top:position.top+"px",left:position.left+"px",width:baseWidth,height:baseHeight,marginLeft:$element.css("marginLeft"),marginRight:$element.css("marginRight"),marginBottom:$element.css("marginBottom"),marginTop:$element.css("marginTop")}).fadeIn();if(options.monitor){function rearrangeShadow(){var $element=$(this),$shadow=$element.next();$shadow.css({top:parseInt($element.css("top"))+"px",left:parseInt($element.css("left"))+"px"})
$(">*",$shadow).css({height:this.offsetHeight+"px",width:this.offsetWidth+"px"});}
$element.bind("DOMAttrModified",rearrangeShadow);if($shadow[0].style.setExpression){$shadow[0].style.setExpression("top","parseInt(this.previousSibling.currentStyle.top ) + 'px'");$shadow[0].style.setExpression("left","parseInt(this.previousSibling.currentStyle.left) + 'px'");}}});};})(jQuery);