(function() {
    var callscript = {
        showad_slot:"",
        showad_defineSlot : "/21634903505/BT_a_Fl",
        showad_defineSlot2 : "/21634903505/BT_a_Fl",
        showad_name : "div-gpt-ad-1671181372605-BT_a_Fl",
        //showad_defineSize : [ [1, 1] ],
        showad_defineSize : [ [320, 100], [1, 1], [320, 50] ],
        //showad_defineSize : [[970, 90], [1, 1], [320, 50], [336, 280], [970, 250], [300, 250], [728, 90], [300, 50], [320, 100], [300, 100]],

        fetchad:function(){
            var showad_name = this.showad_name;
            var showad_div = document.createElement('div');

            var check_rate = Math.floor((Math.random() * (100-1)) +1);
            if( check_rate> 50 ){
               callscript.showad_defineSlot = callscript.showad_defineSlot2;
            }
            showad_div.style.textAlign = 'center';
            showad_div.id = showad_name;
            document.body.appendChild(showad_div);
            //if(document.getElementsByClassName('after-header-widget-area').length>0){
            //    document.getElementsByClassName('after-header-widget-area')[0].appendChild(showad_div);
            //}
            window.googletag = window.googletag || {cmd: []};
            var googletag = window.googletag;
            googletag.cmd.push(function() {
                callscript.showad_slot = googletag.defineSlot(callscript.showad_defineSlot,callscript.showad_defineSize, callscript.showad_name)
.setTargeting('site', location.hostname).setTargeting('url', location.href).addService(googletag.pubads());
                googletag.pubads().enableSingleRequest();
                googletag.enableServices();
            });
            googletag.cmd.push(function() { googletag.display(callscript.showad_name); });
        },async:function (u, c) {
            var d = document, t = 'script',
                o = d.createElement(t),
                s = d.getElementsByTagName(t)[0];
            o.src = u;
            if (c) { o.addEventListener('load', function (e) { c(null, e); }, false); }
            //s.parentNode.insertBefore(o, s);
            d.body.appendChild(o);
        },callad:function(){
            this.async('https://www.googletagservices.com/tag/js/gpt.js',this.fetchad());
        }
    };

 setTimeout( function(){
   // if(window.googletag){callscript.fetchad();}else{callscript.callad();}
        },50);

   // if(window.googletag){callscript.fetchad();}else{callscript.callad();}
})();