function setCookie(name,value,days) {
	if (days) {
	   var date = new Date();
	   date.setTime(date.getTime()+(days*24*60*60*1000));
	   var expires = ";expires="+date.toGMTString();
	} else {
	   expires = "";
	}
	document.cookie = name+"="+value+expires+";path=/";
}
					 
function readCookie(name) {
	var needle = name + "=";
	var cookieArray = document.cookie.split(';');
	for(var i=0;i <cookieArray.length;i++) {
		var pair = cookieArray[i];
		while (pair.charAt(0)==' ') {
		    pair = pair.substring(1, pair.length);
		}
		if (pair.indexOf(needle) == 0) {
		    return pair.substring(needle.length, pair.length);
		}
	}
	return null;
}