var XMLHTTP; function createXMLHttpRequest() //创建AJAX { if(window.ActiveXObject) { XMLHTTP=new ActiveXObject("Microsoft.XMLHTTP"); } else if(window.XMLHttpRequest) { xmlHttp=new XMLHttpRequest(); } } function startRequest(url) //开始AJAX { createXMLHttpRequest(); XMLHTTP.onreadystatechange=handleStateChange; XMLHTTP.open("GET",url,true); XMLHTTP.send(null); } function handleStateChange() { if(XMLHTTP.readyState==4) { alert(XMLHTTP.status); if(XMLHTTP.status==200){ PanduanBackZhi(); } } } function PanduanBackZhi() { if(XMLHTTP.responseText=="从数据库载出") { document.getElementById('Xianshi').innerHTML="<img border=\"0\" src=\"../images/ajaxloading.gif\"><font color=#FF0000 sytle=font-weight:bold>准备从SQL导出数据,请稍等......</font>"; document.getElementById('Button2').disabled=false; } if(XMLHTTP.responseText=="从EXCEL 导出") { document.getElementById('Xianshi').innerHTML="<img border=\"0\" src=\"../images/ajaxloading.gif\"><font color=#FF0000 sytle=font-weight:bold>准备DATATABLE导出数据,请稍等......</font>"; document.getElementById('Button1').disabled=false; } } function Diaoyong(panduan) { startRequest("../AJAXExcel.aspx?id="+panduan+""); }