<!--function showHideLayers() {	if (document.getElementById) {		var i,args=showHideLayers.arguments;		for (i=0; i<(args.length); i+=1)			toggleMenu(args[i])	}	else {		return true	}}function toggleMenu(currMenu) {	if (document.getElementById) {		thisMenu = document.getElementById(currMenu).style		if (thisMenu.display == "block") {			thisMenu.display = "none"		}		else {			thisMenu.display = "block"		}		return false	}	else {		return true	}}//-->