LinuxQuestions.org - javascript calls to embedded echo'd php forms

I'm having another issue with my forms,
I had to embed them in php so I used echo's (because they are generated as needed in a loop from a database of searched books)

I need to somehow take the input tag for quantity and multiply it by the price, which is in a hidden field, then take that value and and give to the price field, which is a readonly input tag.

I created a new webpage in html with a form very similar and wrote this code in javascript

Code:

<script language="javascript">

function dollars(n) {

  n=eval(n);

  n=Math.round(n*100)/100;

  return (n == Math.round(n)) ? n += ".00" : (n*10 == Math.round(n*10)) ? n +="0" : n;

}

function total_price() {

        s1 = eval(document.browse.quantity.value);

        s2 = eval(document.browse.price.value);

        document.browse.total.value = dollars(s1+s2);

}

</script>

It works,

But on the php embedded code it doesn't, it wont call the jscript functions for some reason, I even embedded the actualy jscript with an echo just above the form tags IN PHP CODE, and it still wont work. I can echo stuff in jscript while its imbedded but this more complex stuff doesn't work.

Any know how I can make it work, or, the equivalent

Code:

<script language="javascript">

function dollars(n) {

  n=eval(n);

  n=Math.round(n*100)/100;

  return (n == Math.round(n)) ? n += ".00" : (n*10 == Math.round(n*10)) ? n +="0" : n;

}

function total_price() {

        s1 = eval(document.browse.quantity.value);

        s2 = eval(document.browse.price.value);

        document.browse.total.value = dollars(s1+s2);

}

</script>

in a php function that will work

Cheers !