*********This would go in the HEAD section between SCRIPT tags*******

function isValid1(){

var fName = document.valid1.fname.value;
var eMail = document.valid1.email.value;

if(fName == ''){
alert('You must enter a name')
return false;
}
if(eMail == ''){
alert('You must enter a email')
return false;
}

}


*******This would go in the BODY section between FORM tags******


<FORM NAME="valid1" onSubmit="return isValid1()">
Leave the fields blank and click "Done"<BR><BR>
Name: <INPUT TYPE=TEXT NAME=fname><BR>
Email: <INPUT TYPE=TEXT NAME=email><BR>

<INPUT TYPE=submit VALUE="Done">
</FORM>