Get result of a formula or Textbox

[#1]

Hi guys,

simple problem:

How can I access the result of a formurla with JavaScript?

How can I get the content of a Textbox?  (The result of the formurla is in a Textbox)

I tried this three things:

1. I put the formula in a variable and read the variable in JavaScript-> gives me the formular but not the result

2. I tried to get the the content of the Textbox  -> no success (but works with Listboxes)

3. I tried to access the html directly with "document.getElementsByTagName("td")" and then get the value -> no success

can someone help me please?

[tresesco]

Front-end variable should work. Could you share your extension?

[#3]

I summarize my extension here is the qvw and the extension folder:

The Extension gives all variable to the console