function updatemake(){
	make = $("select_make").value;
	$("select_model").update("<option value=''>Select Model</option>");	
	
	$("select_year").update("<option value=''>Select Year</option>");		
	new Ajax.Request('axn/quick_search.axn.php?select=make&make='+make, {
  method: 'get',
  onSuccess: function(response) {
    Element.insert("select_model",response.responseText)
    $("select_model").selectedIndex = 0;
  }});
}

function updatemodel(){
	make = $("select_make").value;
	model = $("select_model").value;
	$("select_year").update("<option value=''>Select Year</option>");		
	
	new Ajax.Request('axn/quick_search.axn.php?select=model&make='+make+'&model='+model, {
  method: 'get',
  onSuccess: function(response) {
    Element.insert("select_year",response.responseText)
    $("select_year").selectedIndex = 0;
  }});
}