/*
Global Image Functions
- _findImage
- _preloadImage
*/

function _findImage(id,doc)
{
	if(id && id  != null)
	{
		if(!doc || doc == null)
		{
			doc = document;
		}
		var image = null;
		if(document.layers)
		{
			image = doc.images[id];
			for(var i=0; !image && i < doc.layers.length; i++)
			{ 
				image = _findImage(id,doc.layers[i].document);
			}   
		}
		else
		{
			image = doc.images[id];
		}
		return image;
	}
	return null;
}

function _preloadImage(imagePath)
{
	if(imagePath && imagePath != null)
	{
		var img = new Image();
		img.src = imagePath;
		return img;
	}
	return null;
}