Where to capture?

[Guest Geethanandh]

A simplified case of my scenario

 

I have a form on page1 with one hidden element. Form uses POST. When the page is rendered the hidden element has no value. Value of the hidden element is calculated and stored using a javascript function during the body onload. What i need is to capture that calculated value and store it in a variable and so it can be used in further pages down.

 

How do i solve this problem? Where do i capture that value and what function?

 

By the way you have a simple, nice and easy to use tool.

 

Thanks