function verify(form) {
	
	var themessage = "You are required to complete the following fields: ";
	
	if (document.form.name.value=="") {
		themessage = themessage + "\n - Name";
	}

	if (document.form.email.value=="") {
		themessage = themessage + "\n - E-mail";
	}
	
	if (document.form.comments.value=="") {
		themessage = themessage + "\n - Comments";
	}

	//alert if fields are empty and cancel form submit
	if (themessage == "You are required to complete the following fields: ") {
		alert("Your message has been sent successfully");
		document.form.submit();
	}

	else {
		alert(themessage);
		form.name.focus(); 
		return false;
   }
}