var http_request8 = false;
	function send_request8(url) {
		http_request8 = false;
		
		if(window.XMLHttpRequest) {
			http_request8 = new XMLHttpRequest();
			if (http_request8.overrideMimeType) {
				http_request8.overrideMimeType('text/xml');
			}
		}
		else if (window.ActiveXObject) {
			try {
				http_request8 = new ActiveXObject("Msxml2.XMLHTTP");
			} catch (e) {
				try {
					http_request8 = new ActiveXObject("Microsoft.XMLHTTP");
				} catch (e) {}
			}
		}
		if (!http_request8) { 
			window.alert("對不起，暫時未能提供服務，請稍後再試或聯絡我們！    YYYY");
			return false;
		}
		http_request8.onreadystatechange = processRequest8;
		http_request8.open("GET", url, true);
		http_request8.send(null);
	}
	
	function send_request_post(url) {
		http_request8 = false;
		
		if(window.XMLHttpRequest) {
			http_request8 = new XMLHttpRequest();
			if (http_request8.overrideMimeType) {
				http_request8.overrideMimeType('text/xml');
			}
		}
		else if (window.ActiveXObject) {
			try {
				http_request8 = new ActiveXObject("Msxml2.XMLHTTP");
			} catch (e) {
				try {
					http_request8 = new ActiveXObject("Microsoft.XMLHTTP");
				} catch (e) {}
			}
		}
		if (!http_request8) { 
			window.alert("對不起，暫時未能提供服務，請稍後再試或聯絡我們！   RRRRR");
			return false;
		}
		http_request8.onreadystatechange = processRequest8;
		http_request8.open("POST", url, true);
		http_request8.send(null);
	}
	
    function processRequest8() {
        if (http_request8.readyState == 4) { 
            if (http_request8.status == 200) { 
         document.getElementById("studentsList").innerHTML=http_request8.responseText;
                               
            }
        }
    }
function selectGroup(){ //v3.0
	//alert("start!");//please enter password
  	var selectIndex=document.all.groupList.selectedIndex;
  	var gvalue=document.all.groupList.options[selectIndex].value;
  	//alert(gvalue);
  	send_request8("admin/saveUser.html?method=getStudentList&groupid="+gvalue);
}

function select_hidden(){
        $('groupList').selectedIndex=0;
        $('groupList').disabled=true;
         }
function select_show(){
       $('groupList').disabled=false;
        }
function clear_text(){
       $('newgroup').value="";
}