// JavaScript Document
<!-- Begin
function checkFields() {

if (document.form1.fn.value == "") {
alert("Please enter your name.");
return false;
}
if ((document.form1.email.value == "") || 
(document.form1.email.value.indexOf('@') == -1) || 
(document.form1.email.value.indexOf('.') == -1)) {
alert("Please enter your email address in the correct format.");
return false;
}
if (document.form1.subject.value == "") {
alert("Please enter a subject.");
return false;
}
if (document.form1.questions.value == "") {
alert("Please enter a question or comment.");
return false;
}

return true;
}
//  End -->