Complete Form Validation Script

 

The following code sample shows the complete ValidateContactForm function for the contact form.

function ValidateContactForm()
{
var name = document.ContactForm.Name;
var email = document.ContactForm.Email;
var phone = document.ContactForm.Telephone;
var nocall = document.ContactForm.DoNotCall;
var what = document.ContactForm.Subject;
var comment = document.ContactForm.Comment;

if (name.value == “”)
{
window.alert(“Please enter your name.”);
name.focus();
return false;
}

if (email.value == “”)
{
window.alert(“Please enter a valid e-mail address.”);
email.focus();
return false;
}
if (email.value.indexOf(“@”, 0) < 0)
{
window.alert(“Please enter a valid e-mail address.”);
email.focus();
return false;
}
if (email.value.indexOf(“.”, 0) < 0)
{
window.alert(“Please enter a valid e-mail address.”);
email.focus();
return false;
}

if ((nocall.checked == false) && (phone.value == “”))
{
window.alert(“Please enter your telephone number.”);
phone.focus();
return false;
}

if (what.selectedIndex < 1)
{
alert(“Please tell us how we can help you.”);
what.focus();
return false;
}

if (comment.value == “”)
{
window.alert(“Please provide a detailed description or comment.”);
comment.focus();
return false;
}
return true;
}

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