//ajax
function getObject(objectId) {
     if(document.getElementById && document.getElementById(objectId)) 
     {
       // W3C DOM
       return document.getElementById(objectId);
     } 
     else if (document.all && document.all(objectId)) 
     {
       // MSIE 4 DOM
       return document.all(objectId);
     } 
     else if (document.layers && document.layers[objectId]) 
     {
       // NN 4 DOM.. note: this won't find nested layers
       return document.layers[objectId];
     } 
     else 
     {
       return false;
     }
}  
// CreateXMLHttpRequest
function CreateXMLHttpRequest()
{
   // Initialize Mozilla XMLHttpRequest object
   var xmlHttp;
   if (window.XMLHttpRequest)
   {
       xmlHttp = new XMLHttpRequest();
   } 
   // Initialize for IE/Windows ActiveX version
   else if (window.ActiveXObject)
   {
       try
       {
                xmlHttp = new ActiveXObject("Msxml2.XMLHTTP.3.0");
         } 
       catch (e)
       {
                try
                {
                     xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
                }  
                catch(e)
                {
                     newsstring = "对不起，您的浏览器不支持XMLHttpRequest对象！";}
          }   
   }
   return xmlHttp;
}

function getDataTimes()
{
	var strDate,strTime;
	strDate = new Date();
	strTime = strDate.getTime();
	return strTime;
}