// menu.js - code for mainhead.cfm

var previoustab="";
var previousmenu="";

function showTabs(n,m) {	//m is top menu no, n is 2nd level menu no.
	var objid = "a" + n;
	var tid = "st" + n;
	var obj = document.getElementById(objid);
	showNav(tid,obj);
	// do hilite on 2nd level munber
	var sid = tid + 'm' + m;
	//alert("Prev=" + previousmenu + " This=" + sid)
	if(previousmenu != '') {
		//document.getElementById(previousmenu).style.borderLeft = 'none';
		//document.getElementById(previousmenu).style.borderTop = 'none';
		document.getElementById(previousmenu).className = 'item';
	}
	//document.getElementById(sid).style.borderLeft = '1px solid #FFFFFF';
	//document.getElementById(sid).style.borderTop = '1px solid #FFFFFF';
	document.getElementById(sid).className = 'itemhilite';
	previousmenu = sid;
}

function showNav(id,obj) {
	//obj.onclick=new Function("return false");
	if (document.getElementById) {
		highlighttab(obj);
		if (previoustab!="") {
			document.getElementById(previoustab).style.display="none";
		}
		document.getElementById(id).style.display="inline";
		previoustab=id;
	}
}

function highlighttab(obj){
	if (typeof tabobjlinks=="undefined") {
		collecttabs();
	}
	for (i=0; i<tabobjlinks.length; i++) {
		tabobjlinks[i].className="";
		obj.className="current"
	}
}

function collecttabs(){
	var tabobj=document.getElementById("menu")
	tabobjlinks=tabobj.getElementsByTagName("A")
}