jQuery plugin to preload images

preloadImages

// Usage: $(['img1.jpg','img2.jpg']).preloadImages(function(){ ... });
// Callback function gets called after all images are preloaded
$.fn.preloadImages = function (callback)
{
    // Helper function, used below.
    // Usage: ['img1.jpg','img2.jpg'].remove('img1.jpg');
   var checklist = this.toArray();
   var removeImg = function (element)
    {
        for (var i = 0; i < checklist.length; i++)
        {
            if (checklist[i] == element) { checklist.splice(i, 1); }
        }
    };

    this.each(function ()
    {
        $('<img>').attr({ src: this }).load(function ()
        {
            removeImg($(this).attr('src'));
            if (checklist.length == 0) { callback(); }
        });
    });
};