if (form.last_name.value == '') { alert("You must enter your last name."); return false; } if (form.first_name.value == '') { alert("You must enter your first name."); return false; } if (form.gender.value == '') { alert("You must enter your gender."); return false; } if (form.zipcode.value == '') { alert("You must enter your zipcode."); return false; } if (form.email.value == '') { alert("You must enter your email."); return false; }
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