How do I extract Google Analytics campaign data from their cookie with Javascript?

Question

I\'d like to be able to pull out the data stored in the Google Analytics tracking cookie with all the campaign tracking information using Javascript. It needs to work with

Answer 1

I ended up figuring this out on my own. I just dug into what the cookie had stored and extracted the information. Here's what I came up with:

var ga_source = '';
var ga_campaign = '';
var ga_medium = '';
var ga_term = '';
var ga_content = '';
var gc = '';
var c_name = "__utmz";
if (document.cookie.length>0){
    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;
        gc = unescape(document.cookie.substring(c_start,c_end));
    }
}
if(gc != ""){
    var z = gc.split('.'); 
    if(z.length >= 4){
    var y = z[4].split('|');
        for(i=0; i

I'm sure it could be more streamlined but I was just happy to get this far with it. Once you have these variables you can do whatever you need with them.