Stopping PHP

[OmniX]

I have an input submit button that once clicked activates php.

Now the problem I have is that I have the neccessary code (or what i think is) to stop from the input button working (as I have used the same technique on the other input submit buttons).

To get to the point I am using

blah blah blah

return false;

That should deactivate the button, but in this case it just proceeds to the next page. =(

Any Ideas?

Thanks, Regards X

[ShawnCplus]

Just as an example this would stop a submit button from submitting.

<input type="submit" onclick="return confirm("Are You Sure?");" />

If they accept then it continues, if they cancel nothing happens.

[OmniX]

No didnt work =(

[mellamokb]

Now the problem I have is that I have the neccessary code (or what i think is) to stop from the input button working (as I have used the same technique on the other input submit buttons).

Applying the same technique should yield the same results. Is there other JavaScript on the page? Does this other JavaScript that is running possibly have an error? If there are any errors, the JavaScript will quit executing, and thus the return false will never be reached.

<input type="submit" onclick="return confirm("Are You Sure?");" />

This example does not work because the inner quotes are not escaped properly. Try this similar code with imbedded single-quotes:

<input type="submit" onclick="return confirm('Are You Sure?');" />

An alternative approach to using a return statement is to set the "event.returnValue" to false:

<input type="submit" onclick="if (!confirm('Are You Sure?')) event.returnValue = false;" />

If none of these ideas work, please post all JavaScript relating to the page that relates to this submit button or form, and perhaps some invalid code can be identified that is stopping your entire command from executing properly, so the "return false" is never reached.

~ mellamokb

[OmniX]

~ mellamokb

what can i say? Again you came through in strides, worked perfectly first time no problems.
Thankyou very much again =)

[mellamokb]

No problem. Glad to help!

~ mellamokb

[~s.o.s~]

> An alternative approach to using a return statement is to set the "event.returnValue" to false:
...which would only work in IE.

In IE the event generated becomes a event property of the window object whereas in Gecko based browsers it is passed as a first argument to the event listener. A better approach would be:

function handle(e) {
	var e = e || window.event;
	if(!confirm("Do you want to continue?")) {
		if(e.preventDefault) {
			e.preventDefault();
		}
		else {
			e.returnValue = false;
		}
	}
}

<!-- more code -->

<input type="submit" onclick="handle(event);" />

[OmniX]

Thanks SOS for that.

I was just wondering what is the difference between:

returnValue= true;

and

e.returnValue= true;

And

e.preventDefault();

Just allows the default commands to proceed i gather?

Also I was never using a confirm button they just suggested I did.

Regards, X

[~s.o.s~]

> returnValue= true; This sets the value of the global variable returnValue to true and has got nothing to do with your issue.

> e.returnValue = true; This sets the return value of the event to ' true ' and is a MS only property. So your onclick returns false if the validation fails and thereby prevents form submission.

> e.preventDefault() This cancels / prevents the default action caused by the event. In our case, the click action submits the form which is prevented by calling p reventDefault(). It is important to notice that both e.returnValue = false; and e.preventDefault() in our case achieve the same purpose(of cancelling the forum submission) for different browser types.

[OmniX]

Perfect thankyou for all the information and help. Very detailed and summarized =)