/* Copyright (c) 2006 Brandon Aaron (http://brandonaaron.net)
 * Dual licensed under the MIT (http://www.opensource.org/licenses/mit-license.php) 
 * and GPL (http://www.opensource.org/licenses/gpl-license.php) licenses.
 *
 * $LastChangedDate: 2007-06-19 20:25:28 -0500 (Tue, 19 Jun 2007) $
 * $Rev: 2111 $
 *
 * Version 2.1
 */
(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);