set cookie expire date

hey, I have this script which set a cookie, but the expiring of the cookie is session only.
Can somebody help my modifie this script so the cookie is good for a long time (maybe a few months, or a specific date like 2170 or so?
this is the code I have

<script type="text/javascript">
	function cookieSave(name, text) {
		document.cookie = name + "=" + escape(text);
	}

	function cookieLoad(name) {
		var search = name + "=";
		if (document.cookie.length > 0) {
			offset = document.cookie.indexOf(search);
			if (offset != -1) {
				offset += search.length;
				end = document.cookie.indexOf(";", offset);
				if (end == -1) {
					end = document.cookie.length;
				}
				return unescape(document.cookie.substring(offset, end));
			}
		}
	}
  </script>

Code (markup):

Thanks, Dries

 

Try something like:

var now= new Date()
var expireDate= new Date()
expireDate.setTime(now.getTime() + 60*60*24*365*1000) //1000 because time is in milliseconds
setCookie("http://www.mysite.com", name, expireDate)

-Darrin