Array.prototype.unique=function(){var a=[],i;this.sort();for(i=0;i<this.length;i++){if(this[i]!==this[i+1]){a[a.length]=this[i];}}return a;}

// ========================
// Preload all unique images after page load
// PreloadImages("/image1.jpg","image2.jpg");
// ========================
var imagesToPreload = [];
function PreloadImages() {
	for(var i=0; i<arguments.length; i++) {
		imagesToPreload.push(arguments[i]);
	}
};
jQuery(window).load(function() {
	//var a = jQuery.unique(imagesToPreload);
	imagesToPreload = imagesToPreload.unique();
	for(var i=0, al=imagesToPreload.length; i < al; i++) {
		jQuery("<img>").attr("src", imagesToPreload[i]);
	}
});