// JavaScript Document
	  function changepage(){
	  	var cyear=document.all.select2.value;
		//var cmonth=document.all.select1.value;
		
		if(!getURL(cyear+".xml")){
			alert("您所选的年份没有信息！");
			return false;
		}
		
		var tdall = document.all.listxmltd.all;
		var dataobj;
		for(i=0;i<tdall.length;i++){
			var tmpel = tdall[i];
			if(tmpel.id.indexOf("DocumentsDataSrc")>-1) {
				//alert(tmpel.innerHTML);
				dataobj = tmpel;
				break;
			}
		}
		//var recsarray = dataobj.XMLDocument.selectNodes("//RECS");
		//dataobj.removeChild(recsarray[0]);
		var dataobjid = dataobj.id;
		var setnowobj = dataobjid.substring(dataobjid.indexOf("DocumentsDataSrc")+16,dataobjid.length);
		nowObj=setnowobj;
		//alert(setnowobj);
		dataobj.innerHTML="";
		m_arNodes = null;
		
		xhai_xml = new ActiveXObject("Microsoft.XMLDOM");
    	xhai_xml.async=true;
		//xhai_xml.onreadystatechange = getReady(); 
    	xhai_xml.load(cyear+".xml");
		checkxml();
		//document.all.loadxml.style.display="";
		//while(xhai_xml.readyState!=4){
			//alert("正在转到"+cyear+"年的历史信息，请稍候！");
		//}
		//m_arNodes = xhai_xml.documentElement.selectNodes("//INFO");
		//if(m_arNodes.length==0){
		//	alert("您所选的年份没有信息！");
		//}else{
		//	showHistory = true;
		//	nowObj=setnowobj;
		//	initPage();
		//}
		
		//showHistory = false;
	  }
	  function checkxml(){
		  document.body.style.cursor="wait";
	  	if(xhai_xml.readyState!=4){
			setTimeout("checkxml();",1000);
		}else{
			document.body.style.cursor="default";
			m_arNodes = xhai_xml.documentElement.selectNodes("//INFO");
			showHistory = true;
			initPage();
		}
	  }
	  
	  function getReady(){
	  	if(xhai_xml.readyState==4){
			if (xhai_xml.parseError != 0) {
				var oError = xhai_xml.parseError;
				
				alert("An error occurred:\n错误代码: "
					+ oError.errorCode + "\n"
					+ "行数: " + oError.line + "\n"
					+ "列数: " + oError.linepos + "\n"
					+ "原因: " + oError.reason);
			}else{
				m_arNodes = xhai_xml.documentElement.selectNodes("//INFO");
				showHistory = true;
				nowObj=setnowobj;
				initPage();
			}
		} 
	  }
	  function getURL(url)
	  {
    	var xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
    	xmlhttp.open("GET",url,false);
    	xmlhttp.send(null);
        if (xmlhttp.readyState==4)
        {
	        if(xmlhttp.Status==404)
			{
                return false;
			}
        }
		return true;
	  }