历遍页面z-index 获取最大z-index

sns_widget.js

        var max = 0;
        var maxEle;
        KISSY.each(KISSY.query('*'), function(i){
            if(KISSY.DOM.css(i, 'z-index') == 'auto'){return;}
            var index = parseInt(KISSY.DOM.css(i, 'z-index'));
            if(max < index){
                max = index;
                maxEle = i;
            }
            console.log(index);
        })