ajax

function getAjax(QuestStr)
 {
 var xmlHttp;
 
 try
    {
   // Firefox, Opera 8.0+, Safari
    xmlHttp=new XMLHttpRequest();
    }
 catch (e)
    {

  // Internet Explorer
   try
      {
      xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
      }
   catch (e)
      {

      try
         {
         xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
         }
      catch (e)
         {
         alert("您的浏览器不支持AJAX！");
         return false;
         }
      }
    }
	

    xmlHttp.open("POST", "/myajax.aspx",false);
	
	xmlHttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
	xmlHttp.setRequestHeader("validateRequest","false");
    xmlHttp.send(QuestStr);
	return xmlHttp.responseText;
	
 }