var score_layers = new Array( "layer1", "layer2")
	var score_objs = new Array( score_layers.length );
	function score_getObjs()
	{
		var nObjMax = score_layers.length;
		for( nCount = 0; nCount < nObjMax; nCount++ )
		{
			score_objs[nCount] = document.getElementById( score_layers[nCount] );
		}
	}
	function setMultitap( layerID )
	{
		score_objs[0] != null ? "" : score_getObjs();
		if( layerID == score_objs[0].id )
		{
			score_objs[0].style.display = "";
			score_objs[1].style.display = "none";
		
		}
		else if( layerID == score_objs[1].id )
		{
			score_objs[0].style.display = "none";
			score_objs[1].style.display = "";
		
		}

		else
		{
			score_objs[0].style.display = "";
			score_objs[1].style.display = "none";
		}
	}