function getexpirydate(ndays) {
	var UTCstring;
	Today = new Date();
	nomilli=Date.parse(Today);
	Today.setTime(nomilli+ndays*24*60*60*1000);
	UTCstring = Today.toUTCString();
	return UTCstring;
}

function getcookie(cookiename) {
	var cookiestring=""+document.cookie;
	var index1=cookiestring.indexOf(cookiename);
	if (index1==-1 || cookiename=="") return ""; 
	var index2=cookiestring.indexOf(';',index1);
	if (index2==-1) index2=cookiestring.length; 
	return unescape(cookiestring.substring(index1+cookiename.length+1,index2));
}

function setcookie(name, value, expires, path, domain) {

	document.cookie= name + "=" + escape(value) +
        ((expires) ? "; expires=" + getexpirydate(expires) : "") +
        ((path) ? "; path=" + path : "") +
        ((domain) ? "; domain=" + domain : "");
}