JS工具类——高亮度指定的元素

functionHighLight(){};
HighLight.options = {
    id : null,
    className : null,
    interval : 255,
    times : 3000
};
HighLight.prototype = {
    exe :function(options) {
        var_options = {};
        if(typeof(options) == 'object') {
            _options.id = options.id||HighLight.options.id;
            _options.className = options.className||HighLight.options.className;
            _options.interval = options.interval||HighLight.options.interval;
            _options.times = options.times||HighLight.options.times;
        }
        if(_options.id==null||!$(_options.id)) {
            alert('必须指定要高亮度显示的元素ID！');
            return false;
        }else if(!_options.className||typeof(_options.className)!='string'||_options.className.strip()=='') {
            alert('请指定高亮度显示的CSS名称！');
            return false;
        }
        var elt = $(_options.id);
        if(elt.highLightHandle!=null)return;
        elt.highLightHandle = setInterval(function() {
            Element.toggleClassName(elt, _options.className);
        }, _options.interval);
        window.setTimeout(function() {
            clearInterval(elt.highLightHandle);
            Element.removeClassName(_options.className);
            elt.removeAttribute('highLightHandle');
        }, _options.times);
        return true;
    }
};