function validator(form) { 

  if (form.member.value == 0) {
    alert("Please select a Chamber Member.");
    return false;
  }
  if (form.months.value == 0) {
    alert("Please select the number of Months you wish to purchase.");
    return false;
  }
  if (form.page_1.value == "") {
    alert("Please tell us your 1st Choice of Page Listing.");
    form.page_1.focus();
    return false;
  }
  if (form.page_2.value == "") {
    alert("Please tell us your 2nd Choice of Page Listing.");
    form.page_2.focus();
    return false;
  }  
  
return true; 
}