function img_zoom( img, img_small, img_large )
{
	if( img_small.length > 3 && img_large.length > 3 )
	{
		img.src = (img.src==img_large) ? img_small : img_large;
	}
}
function img_zoom_static( img, img_small, img_large )
{
	if( img_small.length > 3 && img_large.length > 3 )
	{
		img.src = (img.src.search(/#large/)!=-1) ? img_small : (img_large+"#large");
	}
}