/*! Copyright (c) 2010 Brandon Aaron (http://brandonaaron.net) * Licensed under the MIT License (LICENSE.txt). * * Version 2.1.2 */
(function($){
		
	$.fn.bgiframe = ($.browser.msie && /msie 6\.0/i.test(navigator.userAgent) ? function(s) {
		    s = $.extend({ 
			       top     : 'auto', // auto == .currentStyle.borderTopWidth
				   left    : 'auto', // auto == .currentStyle.borderLeftWidth
				   width   : 'auto', // auto == offsetWidth        
				   height  : 'auto', // auto == offsetHeight        
				   opacity : true,        
				   src     : 'javascript:false;'    }, s);
    var html = '<iframe class="bgiframe"frameborder="0"tabindex="-1"src="'+s.src+'"'+                   'style="display:block;position:absolute;z-index:-1;'+                       (s.opacity !== false?'filter:Alpha(Opacity=\'0\');':'')+                       'top:'+(s.top=='auto'?'expression(((parseInt(this.parentNode.currentStyle.borderTopWidth)||0)*-1)+\'px\')':prop(s.top))+';'+                       'left:'+(s.left=='auto'?'expression(((parseInt(this.parentNode.currentStyle.borderLeftWidth)||0)*-1)+\'px\')':prop(s.left))+';'+                       'width:'+(s.width=='auto'?'expression(this.parentNode.offsetWidth+\'px\')':prop(s.width))+';'+                       'height:'+(s.height=='auto'?'expression(this.parentNode.offsetHeight+\'px\')':prop(s.height))+';'+                '"/>';
	    return this.each(function() {
			        if ( $(this).children('iframe.bgiframe').length === 0 )
					            this.insertBefore( document.createElement(html), this.firstChild );
					    });
						} : function() { return this; });
						// old alias
						$.fn.bgIframe = $.fn.bgiframe;
						function prop(n) {
							    return n && n.constructor === Number ? n + 'px' : n;
								}
})(jQuery);