Help with forms?

I have an email form that works well but I need to make it so they cant send blank forms

this is the script Im using

on (press) {
if (name.length==null || email.length==null || message1.length==null) {
_root.error_mail.gotoAndStop(2);
}
else
{
form.loadVariables(“http://www.djnow.co.uk/email.php”, “POST”);
}
}

I cant see how this isnt working? I dont see what what is wrong

could some one please help me out?