call:

// Create data provider for combobox
    combobox_data_01 = new DataProvider();
    combobox_data_01.addItem({label:"Air Conditioner"});
    combobox_data_01.addItem({label:"Tumble Dryer"});
    combobox_data_01.addItem({label:"Hot Water Heater"});
    combobox_data_01.addItem({label:"Television"});
    combobox_data_01.addItem({label:"Miscrowave"});

    // Create ComboBox
    combobox_01 = make_combobox("ComboBox 01", combobox_data_01, combobox_01_x, combobox_01_y, combobox_01_width)

function:

function make_combobox(Name:String, dataprovider:DataProvider, X:int, Y:int, W:int):ComboBox
{
    var combobox:ComboBox;

    // Create ComboBox
    combobox = new ComboBox();
    combobox.name = Name;
    combobox.dataProvider= dataprovider;
    combobox.addEventListener(Event.CHANGE, do_combobox);
    combobox.visible = false;

    // Set the position of the combobox
    combobox.x = X;
    combobox.y = Y;

    // Set the dimensions of the combobox
    combobox.width = W;

    // Set rowcount of combobox to display all items
    combobox.rowCount = combobox.length;

    // Place combobox on the stage
    addChild(combobox);

    return combobox
}