(function($) {
	var cache = [];
	// Arguments are image paths relative to the current page.
	$.preLoadImages = function() {
		var args_len = arguments.length;
		for (var i = args_len; i--;) {
			var cacheImage = document.createElement('img');
			var imageUrl = arguments[i];
			if(imageUrl.substring(0,1)=='/'){
				imageUrl = webroot+imageUrl;
			}
			if(imageUrl.indexOf('images/')!=-1){
				imageUrl = castrol+imageUrl;
			}
			cacheImage.src = imageUrl;
			cache.push(cacheImage);
		}
	}
})(jQuery)