Enabling & disabling the Submit button

What code is used to enable/disable the submit button in a form?

 

document.getElementById('yourButtonId').disabled=true

Code (markup):

 

So that's what it was! I kept on typing "enabled = false" instead of "disabled=true". No wonder...

 

thats ok , lets try this

I have a Button onclick of that i am disabling the button and doing a ajax request , after that ajax request i am enabling the button again ...

Now problem starts , when i press the same button my onclick event is not firing ....Why and How ??

 

try form event "onsubmit" maybe