deep

<br /><br />1、问题症状：<br />var xmlHttp;<br />function savetodata(){<br />createXMLHttpRequest();<br />var rndcode = new Date().getTime();<br />var Url ="a.asp?cache="+rndcode<br />xmlHttp.onreadystatechange = function(){<br />.....<br /><br />}<br />

<br /><br /> var xmlHttpRequest;<br />              function createXML(){<br />                  if(window.ActiveXObject){<br />                   xmlHttpRequest=new ActiveXObject("Microsoft.XMLHTTP");<br />                  }else{<br />