js 擷取上一頁所帶的百度關鍵詞

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<div class="fswt">  <textarea type="text" id="fswt_nr" class="fl" placeholder="請輸入您的問題" name="text"></textarea>  <img id="dyfs" class="fl" src="./static/images/send.gif" /></div>      <script language="javascript">    var url = window.location.href;//當前頁面    var shang=window.document.referrer; //來源上一頁        var biaos=encodeURIComponent("自設入口");//標識        if(shang.indexOf("word")!=-1){                var k = window.document.referrer.split(‘word=‘)[1].split(‘&‘)[0];        /*將關鍵詞賦值給input*/         document.getElementById("fswt_nr").value=decodeURIComponent(k);                                }else{                    }                   /*進入頁面後5秒跳轉快商通*/            /*        setTimeout("zjtiao()",5000);                    function zjtiao(){                var dyfs=document.getElementById("fswt_nr").value;            KS.openChatWin({cv:dyfs,sText:‘自設入口‘});                    }        */  setTimeout("dh1()",2000);    function dh1(){        document.getElementById("hd1").style.visibility="visible";        setTimeout("dh2()",3000);    }    function dh2(){        document.getElementById("hd2").style.visibility="visible";    }    var index=0;    var str=document.getElementById("fswt_nr").placeholder;    function type(){    if(index==str.length+1){        index=0;    }    document.getElementById("fswt_nr").placeholder = str.substring(0,index++);    }    setInterval(type, 500);            document.getElementById("dyfs").onclick=function(){        var dyfs=document.getElementById("fswt_nr").value;          KS.openChatWin({cv:dyfs,sText:‘自設入口‘});        }</script>

 

js 擷取上一頁所帶的百度關鍵詞