function checkForRequired(obj, name) {

	if(trim(obj.value) == "") {
		alert(name + " is a required field.");
		return false;
	}
	return true;

}

function trim(val) {
  var retour = ""
  for(i=0;i < val.length;i++)
    if(val.charAt(i) != " ") {
      retour += val.charAt(i)
    }
  return retour
}