How to disable submit button once it has been clicked?

Question

I have a submit button at the end of the form.

I have added the following condition to the submit button:

onClick=\"this.disabled=true;
this.value=\'         


        

Answer 1

Probably you're submitting the form twice. Remove the this.form.submit() or add return false at the end.

you should end up with onClick="this.disabled=true; this.value='Sending…';"