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)+
	((expires==null)?"":("; expires="+expires.toGMTString()))+
	((path==null)?"":("; path="+path))+
	((domain==null)?"":("; domain="+domain))+
	((secure==true)?"; secure":"");
	}