document.body.onload in Firefox

Question

Okay so I'm using Javascript to set the onload attribute of a page. It works in IE but not Firefox. Does anyone know a fix for this? Neither IE or Firefox is throwing an error. I'm using the Firefox plugin "Web Developer" and it isn't showing any JavaScript errors. Code below: Thanks.

document.body.onload = setRedirect;
function setRedirect()
{
    alert("TEST");
}

Answer 1

Change to:

window.onload = setRedirect;

Also see this jsfiddle.