var ns=document.layers

function ArrangeLayers(ocultar, exibir)	{
	
	if (!ns)
	var arrayDin = ocultar.split(",");
	var i;
	var din;
	if 	(document.all[exibir].style.display == '')	{	
		document.all[exibir].style.display = 'none';
		return
	}
	
	if (arrayDin.length != 1) {
		for (i=0;i<=arrayDin.length-1;i++) {
			din = arrayDin[i]
			document.all[din].style.display = 'none';
		}
	}
	document.all[exibir].style.display = '';
}