/*! Copyright (c) 2010 Brandon Aaron (http://brandonaaron.net)
* Licensed under the MIT License (LICENSE.txt).
*
* Version 2.1.3-pre
*/
(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);
