function menueffect () {
    var url = document.location ;    //  http://xxxxx/Support.html
    var s = "" + url;

    var page = null;
    for ( var k = s.length -1 ; k > 0 ; k-- ) {
        if ( s.charAt(k) == '/' ) {
            page = s.substring ( k + 1 );
            break;
        }
    }

    var nav = document.getElementById('nav');
    var links = nav.getElementsByTagName("LI");
    for ( var j = 0; j < links.length; j++ ) {
        var elmt = links [j] ;
		var linkx = elmt.getElementsByTagName ("A");
		var thelink = linkx[0];
        var hr =  thelink.href ;
        if ( hr == s ) {
			elmt.style.background="url(img/tab_selected.png) no-repeat";
			thelink.style.color="black";
            break;
        }
    }
}


function setCookie (name, value, expires, path, domain, secure) {
    document.cookie = name + "=" + escape(value) +
                      ((expires) ? "; expires=" + expires.toGMTString() : "") +
                      ((path) ? "; path=" + path : "") +
                      ((domain) ? "; domain=" + domain : "") +
                      ((secure) ? "; secure" : "");
}


function getCookie(name){
    var cname = name + "=";
    var dc = document.cookie;
    if (dc.length > 0) {
        var begin = dc.indexOf(cname);
        if (begin != -1) {
            begin += cname.length;
            var end = dc.indexOf(";", begin);
            if (end == -1) end = dc.length;
            return unescape(dc.substring(begin, end));
        }
    }
    return null;
}

var MYCOOKIE = "cogixExitSurvey";
var MYDOMAIN = ".cogix.com";

function onloader () {
    //	alert ('hi');
    var mycookie = getCookie (MYCOOKIE);
    if ( ! mycookie ) {
        var value = "1";
        var now = new Date();
        now.setTime(now.getTime() + 1000 * 60 * 60 * 24 * 365 * 10 ) ;
        setCookie ( MYCOOKIE, value, now, "/", MYDOMAIN, false );
        //  alert ( "cookie set" );
        //  replace with an ajax call to whatever we need
    }
}


menueffect () ;
window.onload = onloader;