window.location not working in IE 6

The following JS script works fine in FF and IE7. It fails though in IE6, which happens to be my target audience.

Whats failing is.. the window.location is not calling.

function confirmation(text,url_link) {
	var answer = confirm(text)
	if (answer){
		window.location = url_link;
	}

}

Code (markup):

 

window.location.href

Code (markup):

is the correct method to use.