这是一个简洁版的QQ在线客服，其实重要的是这个JS函数，只要有了这个JS函数，实际上你完全可以写一个这样的在线客服，它是用JS+CSS去控制层的隐藏与展开。注意代码中的QQ号记着要改一下哦。
运行效果截图如下：
在线演示地址如下：
具体代码如下：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>js实现浮动在网页右侧的简洁QQ在线客服</title> <meta http-equiv="content-type" content="text/html;charset=gb2312"> <style type="text/css"> .qqbox a:link { color: #000; text-decoration: none; } .qqbox a:visited { color: #000; text-decoration: none; } .qqbox a:hover { color: #f80000; text-decoration: underline; } .qqbox a:active { color: #f80000; text-decoration: underline; } .qqbox{ width:132px; height:auto; overflow:hidden; position:absolute; right:0; top:100px; color:#000000; font-size:12px; letter-spacing:0px; } .qqlv{ width:25px; height:256px; overflow:hidden; position:relative; float:right; z-index:50px; } .qqkf{ width:120px; height:auto; overflow:hidden; right:0; top:0; z-index:99px; border:6px solid #138907; background:#fff; } .qqkfbt{ width:118px; height:20px; overflow:hidden; background:#138907; line-height:20px; font-weight:bold; color:#fff; position:relative; border:1px solid #9CD052; cursor:pointer; text-align:center; } .qqkfhm{ width:112px; height:22px; overflow:hidden; line-height:22px; padding-right:8px; position:relative; margin:3px 0; } .bgdh{ width:102px; padding-left:10px; } </style> </head> <body> <div> <div><img src="https://www.jb51.net/images/qq.gif"></div> <div> <div onfocus="this.blur();">客 服 中 心</div> <div> <div> <a href="tencent://message/?uin=2563256" title="悠 然 设 计"><img src="http://wpa.qq.com/pa?p=1:981389008:4">主机业务</a><br/></div> <div> <a href="tencent://message/?uin=365286" title="网页制作"><img src="http://wpa.qq.com/pa?p=1:981389008:4">租用托管</a></div> <div>手机：12345692877</div> </div> </div> </div> <script language="javascript"> function showandhide(h_id,hon_class,hout_class,c_id,totalnumber,activeno) { var h_id,hon_id,hout_id,c_id,totalnumber,activeno; for (var i=1;i<=totalnumber;i++) { document.getElementById(c_id+i).style.display='none'; document.getElementById(h_id+i).className=hout_class; } document.getElementById(c_id+activeno).style.display='block'; document.getElementById(h_id+activeno).className=hon_class; } var tips; var theTop = 40; var old = theTop; function initFloatTips() { tips = document.getElementById('divQQbox'); moveTips(); } function moveTips() { var tt=50; if (window.innerHeight) { pos = window.pageYOffset }else if (document.documentElement && document.documentElement.scrollTop) { pos = document.documentElement.scrollTop }else if (document.body) { pos = document.body.scrollTop; } pos=pos-tips.offsetTop+theTop; pos=tips.offsetTop+pos/10; if (pos < theTop){ pos = theTop; } if (pos != old) { tips.style.top = pos+"px"; tt=10; //alert(tips.style.top); } old = pos; setTimeout(moveTips,tt); } initFloatTips(); if(typeof(HTMLElement)!="undefined") //firefox定义contains()方法，ie下不起作用 { HTMLElement.prototype.contains=function (obj) { while(obj!=null&&typeof(obj.tagName)!="undefind"){ if(obj==this) return true; obj=obj.parentNode; } return false; } } function show() { document.getElementById("meumid").style.display="none" document.getElementById("contentid").style.display="block" } function hideMsgBox(theEvent){ if (theEvent){ var browser=navigator.userAgent; if (browser.indexOf("Firefox")>0){ //如果是Firefox if (document.getElementById("contentid").contains(theEvent.relatedTarget)) { return } } if (browser.indexOf("MSIE")>0 || browser.indexOf("Presto")>=0){ if (document.getElementById('contentid').contains(event.toElement)) { return; } } } document.getElementById("meumid").style.display = "block"; document.getElementById("contentid").style.display = "none"; } </script> </body> </html>