function setPos(tabId, layerId, amt)
		{
			var screenWt	= document.getElementById("maxWt").offsetWidth;
			var tableWt		= document.getElementById(tabId).width;
			var layerPos	= (screenWt - tableWt) / 2 < 0 ? 0 : parseInt((screenWt - tableWt) / 2);
			
			document.getElementById(layerId).style.visibility	= "visible";
			document.getElementById(layerId).style.left = layerPos + amt;
		}