jQuery.fn.bgIframe = jQuery.fn.bgiframe = function() {
	// This is only for IE6
	if ( !(jQuery.browser.msie && typeof XMLHttpRequest == 'function') ) return this;
	var html = '<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(html), this.firstChild );
	});
};