Set cookie with hash value

Hi there - first off I don't know javascript at all but I am wondering if some could take a quick look at my script and see why it might not be working.


Basically I have a url like "www.someurlisgoinghere.com/#id=190" - I would like to get the 107 and put it in a cookie to retrieve later with php.

Here's my script that I cannot seem to get working properly. (the first part is suppose to get the hash value and the second is to set the cookie.

<script type="text/javascript">
	function getUrlVars()
{
    var vars = [], hash;
    var hashes = window.location.href.slice(window.location.href.indexOf('#') + 1).split('&');
    for(var i = 0; i < hashes.length; i++)
    {
        hash = hashes[i].split('=');
        vars.push(hash[0]);
        vars[hash[0]] = hash[1];
    }
    return vars;
}
            var cookieData = getUrlVars()["id"];
            if (cookieData != null) {
            var cookieName = "referrer";
            var days = 5;
            var expires = new Date ();
            expires.setTime(expires.getTime() + days * (24 * 60 * 60 * 1000)); 
            
            SetCookie(cookieName, cookieData, expireDate) }
</script>

Code (markup):

I am just using this to grab it with php

$user_refer = $_COOKIE['referrer'] ;

Code (markup):

Thanks a lot guys