/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/* 该js 为 ajax 的封装
 * author : fanhongwei
 */
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

/* ------------- Ajax构造 --------------------------------- */
// 创建ajax对象
function getAjax()
{
   var dataAjax;
   try
   {
      dataAjax = new ActiveXObject("Msxml2.XMLHTTP");
   }
   catch (e)
   {
      try
      {
         dataAjax = new ActiveXObject("Microsoft.XMLHTTP");
      }
      catch (e2)
      {
          try
	      {
	         dataAjax = new XMLHttpRequest();
	      }
          catch(e3)
          {
          	dataAjax = false;
          }
      }
   }
   return dataAjax;
}
// 调用
function callServer(obj, url, callBack)
{
   obj.open("GET", url, true);
   obj.onreadystatechange = callBack;
   obj.send(null);
}