function updatemodel2() { 
  var opts = document.getElementById('form_search_box').make.options ;
  var name = opts[opts.selectedIndex].value; 
  //alert(name);
  http.open("GET", "/bringmodel2.asp?param=" + escape(name), true); 
  http.onreadystatechange = handleModel2; 
  http.send(null);
}

function handleModel2() { 
  if (http.readyState == 4) { 
    results = http.responseText; 
    //alert(results);
	   document.getElementById('d2').innerHTML = results; 
    updatesubmodel();
  } 
}

function updatesubmodel() { 
  var opt1 = document.getElementById('form_search_box').make.options ;
  var name1 = opt1[opt1.selectedIndex].value; 
  var opt2 = document.getElementById('form_search_box').model.options ;
  var name2 = opt2[opt2.selectedIndex].value; 
  //alert(name1+"/"+name2);
  http.open("GET", "/bringsubmodel.asp?param1=" + escape(name1)+"&param2=" + escape(name2), true); 
  http.onreadystatechange = handleSubmodel; 
  http.send(null);
}

function handleSubmodel() { 
  if (http.readyState == 4) { 
    results = http.responseText; 
    //alert(results);
	   document.getElementById('d3').innerHTML = results; 
  } 
}

function clearmodel() { 
  document.getElementById('form_search_box').model.options.selectedIndex = 0; 
  document.getElementById('form_search_box').model.value = ""; 
  document.getElementById('form_search_box').VehicleID.options.selectedIndex = 0; 
  document.getElementById('form_search_box').VehicleID.value = ""; 
}

function clearsubmodel() { 
  document.getElementById('form_search_box').VehicleID.options.selectedIndex = 0; 
  document.getElementById('form_search_box').VehicleID.value = ""; 
}