<?php
//convers string to a given value when it's == n/a
function convert_na_to_dash($value){
	if ($value == "n/a" or $value == "N/a" or $value == "n/A" or $value == "N/A"){
		$value = "";
		return $value;	
	}
	else{
		return $value;
	}

}
?>