function getCookieVal (offset) {
	var endstr = document.cookie.indexOf (";", offset);
	if (endstr == -1)
	endstr = document.cookie.length;
	return unescape(document.cookie.substring(offset, endstr));
}

function GetCookie (name) {
	var arg = name + "=";
	var alen = arg.length;
	var clen = document.cookie.length;
	var i = 0;
	while (i < clen) {
		var j = i + alen;
		if (document.cookie.substring(i, j) == arg)
		return getCookieVal (j);
		i = document.cookie.indexOf(" ", i) + 1;
		if (i == 0) break;
	}
	return null;
}

function SetCookie (name, value) {
	var argv = SetCookie.arguments;
	var argc = SetCookie.arguments.length;
	var expires = (argc > 2) ? argv[2] : null;
	var path = (argc > 3) ? argv[3] : null;
	var domain = (argc > 4) ? argv[4] : null;
	var secure = (argc > 5) ? argv[5] : false;
	document.cookie = name + "=" + escape (value) + " " + ";path=/;expires=" + expires.toGMTString();
}

function DeleteCookie(name) {
	var exp = new Date();
	FixCookieDate (exp);
	exp.setTime (exp.getTime() - 1);
	var cval = GetCookie (name);
	if (cval != null)
	document.cookie = name + "=" + cval + "; expires=" + exp.toGMTString();
}

function storage() {
	var c = prompt("To personalize this page, enter your name:","")
	var thenewdate = new Date ();
	thenewdate.setTime(thenewdate.getTime() + (13*5*24*60*60*1000));
	SetCookie('z',c,thenewdate);
}

function change() {
	var c = prompt("To personalize this page, enter your name:","")
	var thenewdate = new Date ();
	thenewdate.setTime(thenewdate.getTime() + (13*5*24*60*60*1000));
	SetCookie('z',c,thenewdate);
	location = window.location.pathname;
}

var z = GetCookie('z');
if ( ( (z==null) || (z=="null") ) || (z=="") ) {
	z = "Guest";
	document.write("Hello, " + "<a onClick='javascript:change()' href=" + window.location.pathname + " title='Personalize WashUCSC.org'>" + z + "</a>.")
} else {	
	document.write("Hello, " + "<a onClick='javascript:change()' href=" + window.location.pathname + " title='Personalize WashUCSC.org' style='text-decoration:none;'>" + z + "</a>.")
}