var ip;
var aImages = ["/_images/nav-block.gif", 
	"/_images/nav-more.gif", 
	"/_images/nav_morearrow.gif",
	"/_images/sub-on.gif", 
	"/_images/nav_onarrow-old.gif",
	"/_images/nav_onarrow.gif"];
	
function onPreload(aImages, nImages) { }

function ImagePreloader(images, callback) {
	this.callback = callback;
	this.nLoaded = 0;
	this.nProcessed = 0;
	this.aImages = new Array;
	this.nImages = images.length;
	for ( var i = 0; i < images.length; i++ ) {
		this.preload(images[i]);
	}
}

ImagePreloader.prototype.preload = function(image) {
	var oImage = new Image;
	this.aImages.push(oImage);
	oImage.onload = ImagePreloader.prototype.onload;
	oImage.onerror = ImagePreloader.prototype.onerror;
	oImage.onabort = ImagePreloader.prototype.onabort;
	oImage.oImagePreloader = this;
	oImage.bLoaded = false;
	oImage.src = image;
}

ImagePreloader.prototype.onComplete = function() {
	this.nProcessed++;
	if ( this.nProcessed == this.nImages ) {
		this.callback(this.aImages, this.nLoaded);
	}
}

ImagePreloader.prototype.onload = function() {
	this.bLoaded = true;
	this.oImagePreloader.nLoaded++;
	this.oImagePreloader.onComplete();
}

ImagePreloader.prototype.onerror = function() {
	this.bError = true;
	this.oImagePreloader.onComplete();
}

ImagePreloader.prototype.onabort = function() {
	this.bAbort = true;
	this.oImagePreloader.onComplete();
}