Get parent

getParent.js

    _getParent: function(el, queryCssClass) {
        var p = el.parentNode; // It's can be parent...
        var classList = el.classList;
        // sure that the parent not go to itself
        is_owner = classList.contains(queryCssClass); 
        if (is_owner) {
            return ;
        }
        // avoid node empty
        while (p !== null) {
            var o = p;
            if (o.classList.contains(queryCssClass)) {
                return o
            }
            // moving up for more above element.
            p = o.parentNode;
        }
        return undefined; // returns an Array []
    }