Capture Page Title In Form?

I have been trying to find a simple way to capture the page title for a form that will be used throughout my site.Basically, creating a javascript function to allow a user to email a page to a colleague. Of course I only want to have one form, so I wanted to capture the referrering page information.I have had no trouble capturing the referring URL using javascript, associating it with a form field and passing it through PHP validation and emailing it.I am having trouble doing the same for the title. I have tried to capture these with an onLoad event, but that didn't work (for title only - works for others).

Here's the js which is referenced on the html pages (link to external file):

// JavaScript Document
function start() {
var ref = document.getElementById('httpref');

[code]....