function validate_form(){

	valid = true;
	
	if(document.contactform.nametitle.value == ""){
		alert("Please fill in required fields.");
		valid = false;
	}
	
	else if(document.contactform.emailaddress.value == ""){
		alert("Please fill in required fields.");
		valid = false;
	}
	
	
	else if(document.contactform.yourcomments.value == ""){
		alert("Please fill in required fields.");
		valid = false;
	}
	
	
	return valid;

}