function P2_imageSwap(imgName, newSrc)
{
	if (document.images) {
		if( document.images[imgName] ){
			document.images[imgName].src = newSrc;
		}
	}
}

function P2_preloadImage(srcArg)
{
	if (document.images) {
		var img = new Image();
		img.src = srcArg;
	}
}