Stop a submit

Hi
I have an ASP.NET using Visual Basic.Net and I have a form on a page.
I want the form to be check so details when I click submit so I do this ...

btnSubmit.Attributes.Add("onClick", "alert('!!!');return false;")

that works fine. It doesn't submit.

But if I try

btnSubmit.Attributes.Add("onClick", "checkForm();")

and then in the javascript do this

function checkForm()
    {
        alert('test!');
        return false;
    }

It submits!
I can't understand why.

Any ideas?
Thanks
AM
amoranAsked:
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Tomarse111Connect With a Mentor Commented:
Try the below:
btnSubmit.Attributes.Add("onClick", "return checkForm();")

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