function setCookie(c_name, value, expireDays) {
	var exdate = new Date();
	if (expireDays == null) {
		expireDays = 999;
	}
	exdate.setDate(exdate.getDate() + expireDays);
	var cookie = c_name + "=" + escape(value) + ";expires=" + exdate.toGMTString();
	document.cookie = cookie;
}

function getCookie(c_name) {
	if (document.cookie.length > 0){
		var c_start = document.cookie.indexOf(c_name + "=");
		if (c_start!=-1) { 
			c_start = c_start + c_name.length + 1; 
			c_end = document.cookie.indexOf(";", c_start);
			if (c_end == -1) {
				c_end = document.cookie.length;
			}
			return unescape(document.cookie.substring(c_start, c_end));
		}
	}
	return "";
}