function rollOver( t )
	{
		tag = t.getElementsByTagName("SPAN")[0].getElementsByTagName("IMG")[0];
		if(tag) changeImage( tag, "-black" );
		tag = t.getElementsByTagName("SPAN")[1].getElementsByTagName("IMG")[0];
		if(tag) changeImage( tag, "-black" );
	}
	function rollOut( t )
	{
		tag = t.getElementsByTagName("SPAN")[0].getElementsByTagName("IMG")[0];
		if(tag) changeImage( tag, "" );
		tag = t.getElementsByTagName("SPAN")[1].getElementsByTagName("IMG")[0];
		if(tag) changeImage( tag, "" );
	}
	function changeImage( tag, state )
	{
		if(tag.src.indexOf("nedover") != -1)
			tag.src = "images/nedover-pil" + state + ".gif";
		else
			tag.src = "images/venstre-pil" + state + ".gif";
	}

	function buildMouseOvers()
	{
		arrLinks = document.getElementsByTagName("A");
		for(i=0;i<arrLinks.length;i++)
		{
			if(arrLinks[i].className.substring(0, 13) == 'sidemenuLevel')
			{
				arrLinks[i].onmouseover = function onmouseover(event) { rollOver(this); }
				arrLinks[i].onmouseout = function onmouseout(event) { rollOut(this); }
			}
		}
	}