Javascript phone number validation

Question

I need to validate a phone number in javascript. The requirements are:

they should be 10 digits, no comma, no dashes, just the numbers, and not the

Answer 1

Fixed function:

function validateForm(thisform) {
        if (validatePhone(thisform.phone,"Invalid phone number")==false) {
            thisform.phone.focus();
            return false;
        }
        return true;
}