// Preload images for menus
// 2004 Bajawild
//=============================================================================
// Image Preloader
function ImagePreloader(dir, images)
{
	// initialize internal state.
	this.nLoaded = 0;
	this.nProcessed = 0;
	this.dir = dir;
	this.aImages = new Array;

	// record the number of images.
	this.nImages = images.length;

	// for each image, call preload()
	for ( var i = 0; i < images.length; i++ ) 
		this.preload(images[i]);
}
ImagePreloader.prototype.preload = function(image)
{
	// create new Image object and add to array
	var oImage = new Image;
	this.aImages.push(oImage);
	
	// set up event handlers for the Image object
	oImage.onload = ImagePreloader.prototype.onload;
	oImage.onerror = ImagePreloader.prototype.onerror;
	oImage.onabort = ImagePreloader.prototype.onabort;
	
	// assign pointer back to this.
	oImage.oImagePreloader = this;
	oImage.bLoaded = false;
	oImage.source = this.dir + '/' + image;
	
	// assign the .src property of the Image object
	oImage.src = this.dir + '/' + image;
}
ImagePreloader.prototype.onComplete = function()
{
	this.nProcessed++;
}
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();
}