Jquery - powiększanie zdjęcia po najechaniu (wyjście nad inne elementy) bez wpływu na zawartość strony

DEMO: http://jsfiddle.net/roXon/HmTrw/

<div id="images">
    <img src="http://dummyimage.com/180x120/000/fff" alt="Image 1" title="This is my first image"/>
    <img src="http://dummyimage.com/175x104/f0f/fff" alt="Image 2" title="The second one is pretty"/>
    <img src="http://dummyimage.com/150x100/a3d/fff" alt="Image 3" title="Third image"/>
    <img src="http://dummyimage.com/278x125/cf5/fff" alt="Image 4" title="Fourth image"/>
    <img src="http://dummyimage.com/199x120/e46/fff" alt="Image alt attr." title="Some image title"/>
    <img src="http://dummyimage.com/207x480/361/fff" alt="Image alt attr." title="Some image title"/>
    <img src="http://dummyimage.com/400x107/081/fff" alt="Image alt attr." title="Some image title"/>
    <img src="http://dummyimage.com/50x40/cc3/fff" alt="Image alt attr." title="Some image title"/>
    <img src="http://dummyimage.com/700x500/233/fff" alt="Image alt attr." title="Some image title"/>
    <img src="http://dummyimage.com/300x120/a26/fff" alt="Image alt attr." title="Some image title"/>
    <img src="http://dummyimage.com/341x177/f10/fff" alt="Image alt attr." title="Some image title"/>
    <img src="http://dummyimage.com/164x239/d34/fff" alt="Image alt attr." title="Some image title"/>
    <img src="http://dummyimage.com/200x300/34e/fff" alt="Image alt attr." title="Some image title"/>
    <img src="http://dummyimage.com/175x120/72a/fff" alt="Image alt attr." title="Some image title"/>
    <img src="http://dummyimage.com/210x110/112/fff" alt="Image alt attr." title="Some image title"/>
    <img src="http://dummyimage.com/278x225/644/fff" alt="Image alt attr." title="Some image title"/>
    <img src="http://dummyimage.com/300x120/dc3/fff" alt="Image alt attr." title="Some image title"/>
    <img src="http://dummyimage.com/90x104/b30/fff" alt="Image alt attr." title="Some image title"/>
    <img src="http://dummyimage.com/120x60/bb3/fff" alt="Image alt attr." title="Some image title"/>
    <img src="http://dummyimage.com/140x125/aa3/fff" alt="Image alt attr." title="Some image title"/>
</div>

#images{
    padding:30px;
}
#images img{
    float:left;
    height:100px;
    margin:5px;
    padding:0px;
}
#ibox{
    position:absolute;
    overflow-y:none;
    background:#fff;
    border:1px solid #ccc;
    z-index:1001;
    display:none;
    padding:4px;
    -webkit-box-shadow: 0px 0px 6px 0px #bbb;
    -moz-box-shadow: 0px 0px 6px 0px #bbb;
    box-shadow: 0px 0px 6px 0px #bbb;
}
#ibox img{
    border:1px solid #444;
}
#ibox br{
    clear:both;
}

// ibox image zoomer plugin // roXon

(function($) {
    $.fn.ibox = function() {
       
        // set zoom ratio //
        resize = 20;
        ////////////////////
        var img = this;
        img.parent().append('<div id="ibox" />');
        var ibox = $('#ibox');
        var elX = 0;
        var elY = 0;

        img.each(function() {
            var el = $(this);

            el.mouseenter(function() {
                ibox.html('');
                var elH = el.height();
                elX = el.position().left - 6; // 6 = CSS#ibox padding+border
                elY = el.position().top - 6;
                var h = el.height();
                var w = el.width();
                var wh;
                checkwh = (h < w) ? (wh = (w / h * resize) / 2) : (wh = (w * resize / h) / 2);

                $(this).clone().prependTo(ibox);
                ibox.css({
                    top: elY + 'px',
                    left: elX + 'px'
                });

                ibox.stop().fadeTo(200, 1, function() {
                    $(this).animate({top: '-='+(resize/2), left:'-='+wh},400).children('img').animate({height:'+='+resize},400);
                });
            });

            ibox.mouseleave(function() {
                ibox.html('').hide();
            });
        });
    };
})(jQuery);

$(document).ready(function() {
    $('#images img').ibox();
});