https://mvislandweddings.com/sites/all/modules/contrib/nice_menus/js/jquery.bgiframe.js?v=2.1

1/*!
2 * Copyright (c) 2006 Brandon Aaron (http://brandonaaron.net)
3 * Dual licensed under the MIT (http://www.opensource.org/licenses/mit-license.php).
4 * and GPL (http://www.opensource.org/licenses/gpl-license.php) licenses.
5 *
6 * $LastChangedDate: 2007-06-19 20:25:28 -0500 (Tue, 19 Jun 2007) $
7 * $Rev: 2111 $
8 *
9 * Version 2.1
10 */
11(function($){$.fn.bgIframe=$.fn.bgiframe=function(s){if($.browser.msie&&parseInt($.browser.version)<=6){s=$.extend({top:'auto',left:'auto',width:'auto',height:'auto',opacity:true,src:'javascript:false;'},s||{});var prop=function(n){return n&&n.constructor==Number?n+'px':n;},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($('> iframe.bgiframe',this).length==0)this.insertBefore(document.createElement(html),this.firstChild);});}return this;};if(!$.browser.version)$.browser.version=navigator.userAgent.toLowerCase().match(/.+(?:rv|it|ra|ie)[\/: ]([\d.]+)/)[1];})(jQuery);