1 script type="text/javascript"
  2 var agt = navigator.userAgent.toLowerCase();
  3 var is_op = (agt.indexOf("opera") != -1);
  4 var is_ie = (agt.indexOf("msie") != -1) && document.all && !is_op;
  5 var is_ie5 = (agt.indexOf("msie 5") != -1) && document.all && !is_op;
  6 
  7 function CreateXmlHttpReq(handler) {
  8   var xmlhttp = null;
  9   if (is_ie) {
 10     var control = (is_ie5) ? "Microsoft.XMLHTTP" : "Msxml2.XMLHTTP";
 11     try {
 12       xmlhttp = new ActiveXObject(control);
 13       xmlh...[ 查看全文 ]