var today = new Date(); 
var zero_date = new Date(0,0,0); 
today.setTime(today.getTime() - zero_date.getTime());
var cookie_expire_date = new Date(today.getTime() + (8 * 7 * 86400000));

function getCookie(name) { 
	var start = document.cookie.indexOf(name+"=");
	var len = start+name.length+1;
	if ((!start) && (name != document.cookie.substring(0,name.length))) { return null; }
	if (start == -1) { return null; }
	var end = document.cookie.indexOf(";",len);
	if (end == -1) { end = document.cookie.length; }
	return unescape(document.cookie.substring(len,end));
}

function setCookie(name,value,expires,path,domain,secure) {
	var cookieString = name + "=" +escape(value) +
	( (expires) ? ";expires=" + expires.toGMTString() : "") +
	( (path) ? ";path=" + path : "") +
	( (domain) ? ";domain=" + domain : "") +
	( (secure) ? ";secure" : "");
	document.cookie = cookieString;
}

function deleteCookie(name,path,domain) {
	if (getCookie(name)) document.cookie = name + "=" +
	( (path) ? ";path=" + path : "") +
	( (domain) ? ";domain=" + domain : "") + ";expires=Thu, 01-Jan-70 00:00:01 GMT";
}