Simple javascript help, please!

Hello,
I am trying to modify this code:

<SCRIPT LANGUAGE="JavaScript">
<!-- Begin
var requiredfrom = "http://example.com/1.htm"; //  
if (document.referrer.indexOf(requiredfrom) == -1) {
alert("Error: TEXT");
window.location=requiredfrom;
}
//  End --></SCRIPT>

Code (markup):

The previous code should force any visitor to it's container page to visit "example.com/1.htm" first (visitor can visit the page if example.com/1.htm redirects to it, or contains a link - referrer).
I need to add another page like (example.com/1.htm) to the code. I want 2 pages to be able to send traffic to the page, not just 1.
Any help?
Sorry for my English & thank you.

 

You can add another condition like this:

<SCRIPT LANGUAGE="JavaScript">
<!-- Begin
var requiredfrom = "http://example.com/1.htm"; //  
var requiredfrom2 = "http://example.com/2.htm"; //  
if ((document.referrer.indexOf(requiredfrom) == -1) && (document.referrer.indexOf(requiredfrom2) == -1) ) {
alert("Error: TEXT");
window.location=requiredfrom;
}
//  End --></SCRIPT>

Code (markup):

But be aware that some browsers or firewalls might have a setting to disable referrers(or javascript) so this might not work for everyone.

 

Thank you, sponsorlist. I really appreciate your help.