var divs = new Array();
divs[0] = "tus";
divs[1] = "phx";
divs[2] = "ste";
divs[3] = "vid";
divs[4] = "arc";

function toggleTab(evtObj, id) {
	//alert("id "+id);
	//alert(evtObj.type);
	var tabParent = Event.element(evtObj).parentNode;
	tabParent.className = "tab-on";
	//alert(tabParent);
	$(id).setStyle({display: 'block'});
	for (var i=0; i<divs.length; i++) {
		if (divs[i] != id) {
			var tab = $('tab-'+divs[i]);
			tab.className = "tab-off";
			$(divs[i]).setStyle({display: 'none'});	
			
		}
	}	
}