function createXMLHttpRequest()
{
	try
	{
		xmlHttpRequest=new XMLHttpRequest();
	}
	catch (e)
	{
		try
		{
			xmlHttpRequest=new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch (e)
		{
			try
			{
				xmlHttpRequest=new ActiveXObject("Microsoft.XMLHTTP");
			}
			catch (e)
			{
				document.getElementById("txtHint").innerHTML="您的浏览器不支持AJAX！";
				return false;
			}
		}
	}
}
function sendRequestPost(url,param){   
  createXMLHttpRequest();   
  xmlHttpRequest.open("POST",url,true);   
  xmlHttpRequest.setRequestHeader("Content-Type","application/x-www-form-urlencoded");   
  xmlHttpRequest.onreadystatechange = processResponse;   
  xmlHttpRequest.send(param);   
  }      

function processResponse(){
  if(xmlHttpRequest.readyState == 4){
   if(xmlHttpRequest.status == 200){
    document.getElementById("txtHint").innerHTML = xmlHttpRequest.responseText;
   }else{
    document.getElementById("txtHint").innerHTML="服务器异常，请稍后再试。";
   }
  }
 }

    function showHint(num,money1,money2)
        {
            if (num.length>0 &&num > 0)
            {
                 	document.getElementById("txtHint").innerHTML="请稍等，数据正在读取中……"
			        var url="ajax.aspx";
                 	var param="num=" + num+"&money1="+money1+"&money2="+money2;
			        sendRequestPost(url,param);  
            }
            else
            {
                document.getElementById("txtHint").innerHTML="您输入的数据有误，请重新输入。"
            }
        }
	
	function getTime()
	{
		mydate=new Date();
		mymonth=mydate.getMonth()+1;
		myday= mydate.getDate();
		myyear= mydate.getYear();
		document.getElementById("times").innerHTML="数据更新时间："+myyear+"年"+mymonth+"月"+myday+"日 ";
	}