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