function makeIsChanged() {


if(escape( $('#make').val() )!='0'){	
	// set loading message in size drop down

  $('#model').html("<option value=''>Loading Models...</option>");



  // load new options

	var ajaxUrl = "/cars/lookupFunctions/getModelOptions.php?make=" + escape( $('#make').val() ); 

  $.get(ajaxUrl, function(html){

	  $('#model').html( html );

  });

}
else {
	 $('#model').html("<option value='0'>All Makes</option>"); 
  }
}