var LotDetail = {

	selectedImageIndex : 0,
		
	showNextImage : function() {
		nextIndex = this.selectedImageIndex + 1;
		if ($j("div#imageIndex_" + nextIndex).length > 0) this.showImage(nextIndex);
	},
	
	showPrevImage : function() {
		if (this.selectedImageIndex > 0) this.showImage(this.selectedImageIndex-1);
	},
	
	showImage : function(imageIndex) {
		// hide selected image and artwork
		$j("div#imageIndex_" + this.selectedImageIndex).hide();
		$j("img#thumbIndex_" + this.selectedImageIndex).removeClass('current');
		artworkIndex = $j("div#imageIndex_" + this.selectedImageIndex + " img").attr('id');
		artworkIndex = artworkIndex.substring(artworkIndex.indexOf('_')+1);
		$j("div#artworkIndex_" + artworkIndex).hide();
		
		// show new image and artwork
		$j("div#imageIndex_" + imageIndex).show();
		$j("img#thumbIndex_" + imageIndex).addClass('current');
		artworkIndex = $j("div#imageIndex_" + imageIndex + " img").attr('id');
		artworkIndex = artworkIndex.substring(artworkIndex.indexOf('_')+1);
		$j("div#artworkIndex_" + artworkIndex).show();
		
		// update the selected index
		this.selectedImageIndex = imageIndex;
	}
}