If you want to diable the Submit Button on a form after the button has been pressed then use the following code for the submit button.
Once pressed it replaces the text with " Please wait... " and stops the button being pressed again.
**CODE**
< input name="BtnSubmit" value="Login" onclick="this.value = ' Please wait... ';this.disabled = true;theForm.submit();" id="BtnSubmit" style="width: 120px;" type="submit" >**End Of Code**
