function validate(){

var valid = true;

if(document.contactform.name.value == ""){

	alert("Please tell me your Full Name");
	valid = false;

}

else if(document.contactform.email.value == ""){

	alert("Please tell me your Email Address");
	valid = false;

}

else if(document.contactform.comments.value == ""){

	alert("Please tell me your Comments/Question");
	valid = false;

}

return valid;

}