Help needed adding PHP variable into javascript

[Dreamer07]

Hello, I am trying to call an image filename and the page title into a section of javascript located within a php file in the "head" section. The js is part of a shopping cart. My problem is with inserting the PHP variables between the " ". When viewing the source code of the generated page, the PHP has been ignored and it is blank between the " ".

I've been working on this for most of the day and nothing seems to work. I dont' know what to try next. I know it has something to do with php being ignored in the script type= text/javascript, but what I've found through google searches has not solved the problem. I don't understand javascript very well, but could that be a solution for calling the gallery name and filename?

Does anyone have any idea on how I can get this to work??? I appreciate any help or direction offered.

<script type="text/javascript">

<!--
function CalculateOrder(form)
{

if (document.myform.os0.value == "5x7")
{
document.myform.amount.value = 10.00;
document.myform.item_name.value = "<?= $page_title ?>";
document.myform.item_number.value = "<?= $item->title) ?>";
}

}
-->
</script>

[felgall]

What does the PHP source look like? The PHP runs before the JavaScript so the way they are combined together has to take that into account.