function navHighlight(id)
{
	if(document.getElementById(id))
	{
		var imageName = id.replace("Link", "");
		imageName = imageName+"_over";
		var imagePath = "url('/iams/en_US/data_root/images/dropdowns/" + imageName + ".gif')";
		document.getElementById(id).getElementsByTagName('a')[0].style.backgroundImage = imagePath;
	}

}

function navHighlightOff(id)
{

	if(document.getElementById(id))
	{
		var imageName = id.replace("Link", "");
		var imagePath = "url('/iams/en_US/data_root/images/dropdowns/" + imageName + ".gif')";
		document.getElementById(id).getElementsByTagName('a')[0].style.backgroundImage = imagePath;
	}

}