var modelIndex = -1;
var trimIndex;
var modelTrimArray = new Array();
var aryModelName = new Array();

// Drop-down array functions
function addNewModel(){
    modelIndex++;
    modelTrimArray[modelIndex] = new Array();
    trimIndex = 0;
}
function addTrimData(trim_name,trim_id,price) {
    modelTrimArray[modelIndex][trimIndex] = new objTrimData(trim_name,trim_id);
    trimIndex++;
}
function objTrimData(trim_name,trim_id){
    this.name = trim_name;
    this.id = trim_id;
}
function objDepData(dep_name,dep_id){
    this.name = dep_name;
    this.id = dep_id;
}