I need the following to happen on this page: http://www.myvideoservicesonline.com/test.html

I need to have a text field. The customer would then enter their invoice number and click submit. Then, the iframe would redirect to the correct invoice, hosted on www.invoiceasap.com. This is what each invoice link looks like. Just a different invoice number for each link: http://view.invoiceasap.com/view.php?invoiceid=w3oc86k

So, the information entered in the text field would change the invoice id in the link, to show the correct invoice for them to pay.

It would also have to have error messages, in case they don't enter the correct number.

Any help is greatly appreciated. I would love it if anyone could provide me the straight html code.

Thanks!

Setting up an iframe is easy. But have it pulling the correct invoice ID needs a database and some php code.