Tick box energising 'submit' button

[Hutchball]

Hi, is it possible to incluse a tick box on a html form which then 'energises' the 'Submit' button?

E.g. I have a form which i want people to read and agree (via a tick-box) to a disclaimer before the submit button on the form is energised.

[Rodders]

Something like.....

<FORM NAME=myform>

Agree? <INPUT TYPE=CHECKBOX onClick="document.myform.submit();">

</FORM>

[Hutchball]

That works, thanks, but its just a tick box which submits. Is it possible to have a 'locked' submit button which unlocks when the box is ticked?

[Rodders]

<FORM NAME=myform>

Agree? <INPUT TYPE=CHECKBOX onClick="document.myform.btnSubmit.disabled = false;">

<INPUT TYPE=SUBMIT NAME=btnSubmit DISABLED>

</FORM>


EDIT: You might want to add further code to disable the button again if the user unticks the box.

[Hutchball]

Thanks Rodders. Thats working great. You couldn't help us with the code to re-disable it again? Please?

[Hutchball]

Can anybody help?

[Rodders]

<SCRIPT TYPE='text/javascript'>
function switchbutton() {

if (document.myform.btnSubmit.disabled) {
document.myform.btnSubmit.disabled = false;}
else {
document.myform.btnSubmit.disabled = true;}

return true;

}

</SCRIPT>


<FORM NAME=myform>

Agree? <INPUT TYPE=CHECKBOX onClick="return switchbutton();">

<INPUT TYPE=SUBMIT NAME=btnSubmit DISABLED>

</FORM>

[Hutchball]

That works a treat, thanks mate. :)