es.
{
    {byJson: {data: null, selectedIndex: 0, name: null, size: 0, multiple: false, width: 250}, //if you want to create by json data
    mainCSS: 'dd',
    visibleRows: 7,
    rowHeight: 0,
    showIcon: true,
    zIndex: 9999,
    useSprite: false,
    animStyle: 'slideDown',
    event:'click', //it can be mouseover 
    openDirection: 'auto', //auto || alwaysUp || alwaysDown
    enableCheckbox:false, //this needs to multiple or it will set element to multiple
    checkboxNameSuffix:'_mscheck',
    ap