function DoSubmit(){
  var g_category;
  var g_name;
  var g_email;

  g_category = document.dealer_lead.b_category.value;
  if (!g_category){
    alert("Please enter the RV Type you are looking for.");
    return false;
  }

  g_name = document.dealer_lead.b_name.value;
  if (!g_name){
    alert("Please enter your Name.");
    return false;
  }

  g_email = document.dealer_lead.b_email.value;
  if ((g_email=="") || (g_email.search("@")<=0)){
    alert("Please enter a valid email.");
    return false;
  }
}