右下角弹出层

arthur.3726 · 发表于 2013-1-23 02:42:17

html（主页面）代码：
<div id="rbbox">
<a class="button" >关闭</a>
<iframe id="iframeyxj" src="yxjiframe.html" frameborder="0" height="150" width="180" scrolling="no"></iframe>
</div>
********************************
html(弹出的框)代码：
<body>
   <table>
    <tr>
     <td> 系统消息：</td>
    </tr>
    <tr>
     <td></td>
     <td><span style="font-size: 13px;color: red;">你好！</span></td>
    </tr>
   </table>
</body>
********************************
js代码：
//每5秒请求一次服务器
window.onload=function(){
window.setInterval("CheckIsNewSystemInfo()",5000);
}
function CheckIsNewSystemInfo()
{
var sync=true;
var req = window.ActiveXObject ? new ActiveXObject("Microsoft.XMLHTTP") : new XMLHttpRequest();
req.open('POST','yxjMessage.action?id=iop',sync);
req.setRequestHeader('Content-Type','application/x-www-form-urlencoded; charset=UTF-8');
req.send("");
req.onReadyStateChange=function(){
if(req.readyState==4){
   if(req.responseText.length>0){
    var obj=eval(req.responseText);
    if(obj=="ok")
    {
     ifmessage(obj);
    }
   }
}
}

/*
$.ajax({
type:"POST",
url:"yxjMessage.action",
data:"name=lop",
success:function(msg){
   alert(mag[0]);
   //ifmessage(msg[0]);
}
});
*/
}
function ifmessage(msg)
{
showBox();
}
function showBox(o){

        if (o==undefined) o=document.getElementById("rbbox");
        o.style.height=150;
        if(o.style.display==="none")
        {
         o.style.display="block";
        }
}
function closeBox(){
   var rbbox = document.getElementById("rbbox");
         document.getElementById("rbbox").style.display="none";
}
*****************************************************
后台（webwork）：
public String execute() throws Exception {
PrintWriter pwriter = response.getWriter();
response.setContentType("text/xml");
response.setHeader("Cache-Control", "no-cache");
JSONArray json = new JSONArray();
List list = new ArrayList();
list.add("ok");
pwriter.write(json.fromObject(list).toString());
pwriter.flush();
pwriter.close();
return null;
}

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