$(document).ready(function () {
$('.imagePreviewHover').imgPreview({
    containerID: 'imgPreviewWithStyles',
    srcAttr: 'rel',
    imgCSS: {
        height: 300
    },
    // When container is shown:
    onShow: function(link){
        $('<span>' + link.href + '</span>').appendTo(this);
    },
    // When container hides: 
    onHide: function(link){
        $('span', this).remove();
    }
});
});