// new vehicle options list //
var New_Search_MakeModel = new DynamicOptionList();
New_Search_MakeModel.addDependentFields("New_Search_Make","New_Search_Model");
New_Search_MakeModel.forValue("Any").addOptions("Any");
New_Search_MakeModel.forValue("Chevrolet").addOptions("Any","Express Cutaway","Silverado 1500","Silverado 2500HD","Silverado 3500","Silverado 3500HD Chassis");
New_Search_MakeModel.forValue("Isuzu").addOptions("Any","MED DUTY","W3500");
New_Search_MakeModel.selectFirstOption = true;
// used vehicle options list //
var Used_Search_MakeModel = new DynamicOptionList();
Used_Search_MakeModel.addDependentFields("Used_Search_Make","Used_Search_Model");
Used_Search_MakeModel.forValue("Chevrolet").addOptions("Any","Commercial Cutaway","W5500");
Used_Search_MakeModel.selectFirstOption = true;