var userIsLogin = false;
function checklogin() {
	var LoginStatusnon = "ssoSESSIONNONS" + "=";
	var LoginStatus = "ssoSESSION" + "=";
	var CookieValuenon = getcookie(LoginStatusnon);
	var CookieValue = getcookie(LoginStatus);
	var isNav = (navigator.appName == 'Netscape')
	var is_getElementById   = (document.getElementById) ? true : false;
	var isNav6 = isNav && is_getElementById;
	var bV=parseInt(navigator.appVersion);
	var NS4=(document.layers) ? true : false;
	var IE4=((document.all)&&(bV>=4))?true:false;
	if (NS4 || isNav6 ) {
		var Login_on = "<td align=center><a href='https://www.smithbarney.com/cgi-bin/login/login.cgi?context=ADA' target='_top'>Log On</a></td>";
		var Login_off = "<td align=center><a href='/cgi-bin/login/logout.cgi?context=ADA' target='_top'>Log Off</a></td>";
	} else if (IE4) {
		var Login_on = "<td align=center><a href='https://www.smithbarney.com/cgi-bin/login/login.cgi?context=ADA' target='_top'>Log On</a></td>";
		var Login_off = "<td align=center><a href='/cgi-bin/login/logout.cgi?context=ADA' target='_top'>Log Off</a></td>";
	} else {
		var Login_on = "<td align=center><a href='https://www.smithbarney.com/cgi-bin/login/login.cgi?context=ADA' target='_top'>Log On</a></td>";
		var Login_off= "<td align=center><a href='/cgi-bin/login/logout.cgi?context=ADA' target='_top'>Log Off</a></td>";
	}
	var specialDomain1 = "www.cboe.com";
	var specialDomain2 = "prosearch.mycititrade.telescan.com";
	var specialDomain3 = "www.mastercard.com";
	var currentLocation = window.location.toString().toLowerCase();
	if (currentLocation.indexOf(specialDomain1.toLowerCase())!= -1) {
	} else if (currentLocation.indexOf(specialDomain3.toLowerCase())!= -1) {
	} else if (currentLocation.indexOf(specialDomain2.toLowerCase())!=-1) {
		if (NS4) {
			document.layers["headlinksDiv"].document.write(Login_off);
		} else {
			document.write(Login_off);
		}
		userIsLogin = true;
	} else {
		if ((CookieValue.toLowerCase() == "logout") || (CookieValuenon.toLowerCase() == "logout")) {
			if (NS4) {
				document.layers["headlinksDiv"].document.write(Login_on);
			} else {
				document.write( Login_on );
			}
			userIsLogin = false;
		} else if ((CookieValue == "empty") && (CookieValuenon == "empty")) {
			if (NS4) {
				document.layers["headlinksDiv"].document.write(Login_on);
			} else {
				document.write( Login_on );
			}
			userIsLogin = false;
		} else {
			if (NS4) {
				document.layers["headlinksDiv"].document.write(Login_off);
			} else {
				document.write(Login_off);
			}
			userIsLogin = true;
		}
	}
}
function getcookie(in_cookiename) {
	var objCookies = document.cookie;
	var pos = objCookies.indexOf(in_cookiename);
	var begin = pos + in_cookiename.length;
	var end = objCookies.indexOf(";", begin);
	if (end  == -1) end= objCookies.length;
	var tempvalue = unescape(objCookies.substring(begin,end));
	if (pos == -1)  tempvalue = 'empty';
	return tempvalue;
}
var cbol_user;
var cis_ctx = getcookie('CIS_CTX');
if (cis_ctx == null || cis_ctx == 'empty')
       	cbol_user=false;
else
	cbol_user=true;
function checkLoginImage() {
	if (document.images["login"]){
		document.images["login"].src = 
			(userIsLogin) ? "/images/0_btn_logoff.gif" : "/images/0_btn_logon.gif";
	}
}