// ajaxs 
//the function can get the content of right page when user click the link in the left side
var xmlHttp;
var searching=false;
var myDivName="";
function getXMLHTTP(){
	var A = null;
	try{
		A = new ActiveXObject("Msxml2.XMLHTTP");
	}catch(e){
		try{
			A = new ActiveXObject("Microsoft.XMLHTTP");
		} catch(oc){
			A = null;
		}
	}
	if(!A && typeof XMLHttpRequest != "undefined") {
		A = new XMLHttpRequest();
	}
	return A;
}

function executeQuery(divName,url,sqlstr)
{
	searching = true;
	myDivName = divName;
	//alert(divName+','+url+','+sqlstr);
	if(xmlHttp && xmlHttp.readyState != 0) {
		xmlHttp.abort();
	}
	xmlHttp=getXMLHTTP();
	var tempurl="";
	if(xmlHttp && myDivName!=""){
		tempurl += url + ".asp" + "?";
		if(sqlstr!=""){
			tempurl += sqlstr;
		}
		tempurl += "&" + new Date().getTime();
		xmlHttp.open("GET", tempurl , true);
		xmlHttp.onreadystatechange = getReturnHtml;
		xmlHttp.send(null);
	}else{
		searching = false;
		myDivName = "";
		window.alert('ϵͳ̫棬ÇëÉÔºóÔÙÊÔ£¡');
		return false;
	}
}

function getReturnHtml(){
	if (xmlHttp.readyState == 4 && xmlHttp.responseText && searching) {
		document.getElementById(myDivName).innerHTML = xmlHttp.responseText;
		//alert(xmlHttp.responseText);
		searching = false;
	}
}

function createSecondSelect(currentselect,objspanname,objname,desturl,sqlstr){
	if(currentselect){
		executeQuery (objspanname,objname,desturl,sqlstr);
		return true;
	}else{
		alert('please select one item at least!!!');
		return false;
	}
}
function createOption(objspanname,selectname,valuestr,captionstr){
	
	var valuearray = valuestr.split(",");
	var captionarray = captionstr.split(",");
	var temphtml = '';
	temphtml += '<select name="' + selectname + '">';
	for(var i=0;i<valuearray.length;i++){
		temphtml += '<option value="' + valuearray[i] + '">' + captionarray[i] + '</option>';
	}
	temphtml += '</select>';
	var myspanobj=document.getElementById(objspanname);
	myspanobj.innerHTML=temphtml;
	var objselect=document.getElementById(selectname);
	objselect.selectedIndex=0;
	return true;
}
//open one new window
function newOpenWin(url,idstr){
	window.open(url + '?idstr=' + idstr,'','width=850,scrollbars=yes,height=600,top=5');
	return true;
}