var activeImage = "";

function setActiveImageDOWN(imageId)
{ 
	if( imageId != null )
	{
		var imgSrc = document.getElementById(imageId).src;
		imgSrc = imgSrc.replace(/(.*?\/\/)(.*?)(\/)(.*)(UP.gif)$/, '/'+"$4"+'DOWN.gif');
		document.getElementById(imageId).src = imgSrc;
		activeImage = document.getElementById(imageId).id;
	}
}

function changeThisImageDOWN(e)
{
	var imageSource = e.src;
	if( (activeImage != null) && (activeImage != e.id) )
	{
		imageSource = imageSource.replace(/(.*?)(UP.gif)$/, "$1"+'DOWN.gif');
		e.src = imageSource;
	}
}

function changeThisImageUP(e)
{
	var imageSource = e.src;
	if( (activeImage != null) && (activeImage != e.id) )
	{
		imageSource = imageSource.replace(/(.*?\/\/)(.*?)(\/)(.*)(DOWN.gif)$/, '/'+"$4"+'UP.gif');
		e.src = imageSource;
	}
}