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编辑当前文件:/home2/sdektunc/yii/framework/web/js/source/jquery.bgiframe.js

/*! Copyright (c) 2013 Brandon Aaron (http://brandon.aaron.sh)
 * Licensed under the MIT License (LICENSE.txt).
 *
 * Version 3.0.1
 *
 * Requires jQuery >= 1.2.6
 */

// wrap conditional in a function if it isn't already
        if (!$.isFunction(s.conditional)) {
            var condition = s.conditional;
            s.conditional = function() { return condition; };
        }

var $iframe = $('<iframe class="bgiframe"frameborder="0"tabindex="-1"src="'+s.src+'"'+
                           'style="display:block;position:absolute;z-index:-1;"/>');

return this.each(function() {
            var $this = $(this);
            if ( s.conditional(this) === false ) { return; }
            var existing = $this.children('iframe.bgiframe');
            var $el = existing.length === 0 ? $iframe.clone() : existing;
            $el.css({
                'top': s.top == 'auto' ?
                    ((parseInt($this.css('borderTopWidth'),10)||0)*-1)+'px' : prop(s.top),
                'left': s.left == 'auto' ?
                    ((parseInt($this.css('borderLeftWidth'),10)||0)*-1)+'px' : prop(s.left),
                'width': s.width == 'auto' ? (this.offsetWidth + 'px') : prop(s.width),
                'height': s.height == 'auto' ? (this.offsetHeight + 'px') : prop(s.height),
                'opacity': s.opacity === true ? 0 : undefined
            });

if ( existing.length === 0 ) {
                $this.prepend($el);
            }
        });
    };

// old alias
    $.fn.bgIframe = $.fn.bgiframe;

function prop(n) {
        return n && n.constructor === Number ? n + 'px' : n;
    }

}));