// trivia.js

function writeCookie(name,value,minutes) {
	var date = new Date();
	date.setTime(date.getTime()+(minutes*60*1000));
	document.cookie = name + "=" + value + "; expires="+date.toGMTString()+ "; path=/";
}

function eraseCookie(name) {
	writeCookie(name, "", -1);
}

function readCookie(name) {
	var cookieList = document.cookie;
	if (cookieList == null || cookieList.length == 0)
		return false;
	var begin = cookieList.indexOf(name + '=');
	if (begin < 0)
		return false;
	begin += name.length + 1;
	var end = cookieList.indexOf(';', begin);
	if (end < 0)
		end = cookieList.length;
	return unescape(cookieList.substring(begin, end));
}

function objById(id) {
	if (document.getElementById)
		var returnVar = document.getElementById(id);
	else if (document.all)
		var returnVar = document.all[id];
	else if (document.layers)
		var returnVar = document.layers[id];
	return returnVar;
}