function writeCookie(name,value,expires) {
	var	cookieDetails = name+'='+escape(value);
	document.cookie = cookieDetails;
}
function readCookie(name) {
	var cookieValue = document.cookie;
	var cookieRegExp =  new RegExp("\\b" + name + "=([^;]*)");
	cookieValue = cookieRegExp.exec(cookieValue);
	if(cookieValue!= null) {
		return cookieValue[1];
	}
}