Question

I’m trying to implement a Paypal button with a dynamic value. When I enter, for example, value=”300.00″, the button works fine.

However, if I do it my way, the button doesn’t work properly. The variable price is the JS variable that holds the information I need to put into the Paypal button.

Here’s the line of code at fault:

<input type="hidden" name="amount" value="<script>document.write(price)</script>.00">

Answer 1

In javascript:

document.write('<input type="hidden" name="amount" value="' + price + '">')

Or better yet

var div = document.createElement('div');
div.innerHTML = '<input type="hidden" name="amount" value="' + price + '">';
document.body.appendChild(div);

DEMO