想让这个JS只弹一次怎么改

Question

想让他只弹出一次，就不在弹了，请问各位大神如何改

//top_wechat
(function(){                
    var sHTML = [
        '<style type="text/css">',
        '.topTips { -webkit-box-sizing: border-box; -moz-box-sizing: border-box; box-sizing: border-box; position: fixed; left:0; top: 0; width: 100%; z-index: 1000000000;-webkit-perspective: 600px; perspective: 600px; }',
        '.tipsInner {font-family: "Microsoft YaHei"; border-top-left-radius: 5px; border-top-right-radius: 5px; border-bottom-left-radius: 5px; border-bottom-right-radius: 5px; border-radius: 5px; -webkit-box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5); box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5); background: #f3f3f3;-webkit-transform-origin: 0px 0px; transform-origin: 0px 0px; -webkit-transform: rotateX(90deg); transform: rotateX(90deg); opacity: 0; }',
        '.tipsInner a { text-decoration:none;display: block; position: relative; padding-left: 50px; color: #111; }',
        '.tipsInner img { position: absolute; left: 8px; top: 50%; margin-top: -17px; width: 36px; height: auto; padding-right: 5px; background:#f3f3f3; }',
        '.tipsInner dl { margin:0; padding: 10px 5px; border-left: 1px solid #ccc; }',
        '.tipsInner dt { font-weight: bold;line-height:1em; color:#333; }',
        '.tipsInner dd { margin:0; line-height: 1.2em;white-space:nowrap;text-overflow:ellipsis;overflow:hidden; color:#666; }',
        '.showTip { visibility:visible; }',
        '.showTip .tipsInner { -webkit-transform-origin: 0px 0px; transform-origin: 0px 0px; -webkit-transform: rotateX(0deg); transform: rotateX(0deg); opacity: 1; }',
        '.hideTip { visibility:hidden; }',
        '.hideTip .tipsInner { -webkit-transform-origin: 0px 100%; transform-origin: 0px 100%; -webkit-transform: rotateX(-90deg); transform: rotateX(-90deg); opacity: 0; }',
        '</style>',
        '<div class="topTips" id="toptips">',
        '   <div class="tipsInner">',
        '       <a onclick="openZoosUrl();return false;" href="javascript:void(0);return false;" class="JS-SWT-LINK" >',
        '         <img src="/images/qqIcon.png" alt="">',
        '         <dl>',
        '           <dt>于专家：</dt>',
        '           <dd>我是在线专家，请问有什么可以帮您？……</dd>',
        '         </dl>',
        '       </a>',
        '   </div>',
        '</div>'].join('\r\n');
    var o = document.createElement('div');
    o.innerHTML = sHTML;
    while(o.firstElementChild){
        document.body.appendChild(o.firstElementChild);
    };  
         T={hasClass:function(d,a){var c=d.className.split(/\s+/);for(var b=0;b<c.length;b++){if(c[b]==a){return true}}return false},addClass:function(b,a){if(!this.hasClass(b,a)){b.className+=" "+a}},removeClass:function(d,a){if(this.hasClass(d,a)){var c=d.className.split(/\s+/);for(var b=0;b<c.length;b++){if(c[b]==a){delete c[b]}}d.className=c.join(" ")}}};

        function Toptips(options){
            this.init(options);
        };

        Toptips.prototype = {

            constructor : Toptips,

            init : function(options){
                this.item = options.item;
                this.itemInner = options.item.children[0];
                this.loop = typeof options.loop == "undefined" ? true : options.loop;
                this.showTime = typeof options.showTime == "undefined" ? 5000 : options.showTime;
                this.hideTime = typeof options.hideTime == "undefined" ? 15000 : options.hideTime;
                this.showTimer = null;
                this.hideTimer = null;
                this.preTimer = null;
                this.item.style.WebkitTransition = this.item.style.transition = this.itemInner.style.WebkitTransition = this.itemInner.style.transition = "0.5s";
                var me = this;
                var initTimer = setTimeout(function(){
                        me.showTip();
                },9000);
            },

            showTip : function(){
                var me = this;
                T.addClass(me.item,"showTip");
                T.removeClass(me.item,"hideTip");

                clearTimeout(me.hideTimer);
                me.showTimer = setTimeout(function(){
                    me.hideTip();
                },me.showTime);

            },

            hideTip : function(){
                var me = this;
                T.removeClass(me.item,"showTip");
                T.addClass(me.item,"hideTip");
                me.item.style.visibility = me.itemInner.style.visibility = "hidden";

                if(me.loop){
                    clearTimeout(me.showTimer);

                    me.preTimer = setTimeout(function(){
                        me.item.style.visibility = me.itemInner.style.visibility = "visible";
                    },me.hideTime-100);

                    me.hideTimer = setTimeout(function(){
                        me.showTip();
                    },me.hideTime);

                }
            },

        };
        setTimeout(function(){
            var toptip = document.getElementById("toptips");
            new Toptips({
                item : toptip,
                loop : true
            }); 
        },9000);
        return false;
   delete o;
})();

Answer 1

代码里用了一个loop来标记是否循环弹出
this.loop = typeof options.loop == "undefined" ? true : options.loop; //init
if(me.loop) //hideTip
实例化时，让loop为false，那么就不执行循环，每次打开只加载一次
new Toptips({

            item : toptip,
            **loop : false**
        });