Javascript can't work inside Php

Hi all, when i am coding php, i want to create a popup page, so i use javascript, but the browser cannot display the php code inside javascript.

The print $front_link[ProdID] cannot come out, as this is a shopping cart site, its not wiseable to create one page for one product.

<a href=“javascript:windowopen(’<?php print $front_link[ProdID] ?>’)”>Front</a>

I hope your can help me solve this problems or advise me how to make the php correctly display in javascripts.

Thxs for reading

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