jQuery.fn.bgIframe=jQuery.fn.bgiframe=function(){if(!(jQuery.browser.msie&&typeof XMLHttpRequest=='function'))return this;var a='<iframe class="bgiframe" src="javascript:false;document.write(\'\');" tabindex="-1" '+'style="display:block; position:absolute; '+'top: expression(((parseInt(this.parentNode.currentStyle.borderTopWidth)  || 0) * -1) + \'px\'); '+'left:expression(((parseInt(this.parentNode.currentStyle.borderLeftWidth) || 0) * -1) + \'px\'); '+'z-index:-1; filter:Alpha(Opacity=\'0\'); '+'width:expression(this.parentNode.offsetWidth + \'px\'); '+'height:expression(this.parentNode.offsetHeight + \'px\')"/>';return this.each(function(){if(!jQuery('iframe.bgiframe',this)[0])this.insertBefore(document.createElement(a),this.firstChild)})};