// JavaScript By Nookie
	var xmlHttp;
	function createXMLHttpRequest() {
	     if (window.ActiveXObject) {
		    xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
		 } 
			else if (window.XMLHttpRequest) {
			 xmlHttp = new XMLHttpRequest();
			 }
		}
		function startRequest(link) {
			var  LinkStr;
			if(link=="1"){LinkStr="group01.php";bt1();}
			else if(link=="2"){LinkStr="group02.php";bt2();}
			else if(link=="3"){LinkStr="group03.php";bt3();}
		    createXMLHttpRequest();
			 xmlHttp.open("get",LinkStr, true);
             xmlHttp.onreadystatechange = function () {
                if (xmlHttp.readyState == 4) {
                    if (xmlHttp.status == 200) {
                        displayInfo(xmlHttp.responseText);
                    } else {
                        displayInfo("¾º¢éͼԴ¾ÅÒ´: " + xmlHttp.statusText); 
                    }
                }            
            };
            xmlHttp.send(null);
        }
        
        function displayInfo() {
            document.getElementById("showpage").innerHTML = xmlHttp.responseText;
        }
		
function bt1_click()
{
		document.getElementById("bt_01").src = "imghead/btn_ac2_01.jpg";
		document.getElementById("bt_02").src = "imghead/btn_ac1_02.jpg";
		document.getElementById("bt_03").src = "imghead/btn_ac1_03.jpg";
		startRequest(1);
}
function bt2_click()
{
		document.getElementById("bt_01").src = "imghead/btn_ac3_01.jpg";
		document.getElementById("bt_02").src = "imghead/btn_ac2_02.jpg";
		document.getElementById("bt_03").src = "imghead/btn_ac1_03.jpg";
		startRequest(2);
}
function bt3_click()
{
		document.getElementById("bt_01").src = "imghead/btn_ac1_01.jpg";
		document.getElementById("bt_02").src = "imghead/btn_ac3_02.jpg";
		document.getElementById("bt_03").src = "imghead/btn_ac2_03.jpg";
		startRequest(3);
}
function bt1()
{
		document.getElementById("bt_01").src = "imghead/btn_ac2_01.jpg";
		document.getElementById("bt_02").src = "imghead/btn_ac1_02.jpg";
		document.getElementById("bt_03").src = "imghead/btn_ac1_03.jpg";
}
function bt2()
{
		document.getElementById("bt_01").src = "imghead/btn_ac3_01.jpg";
		document.getElementById("bt_02").src = "imghead/btn_ac2_02.jpg";
		document.getElementById("bt_03").src = "imghead/btn_ac1_03.jpg";
}
function bt3()
{
		document.getElementById("bt_01").src = "imghead/btn_ac1_01.jpg";
		document.getElementById("bt_02").src = "imghead/btn_ac3_02.jpg";
		document.getElementById("bt_03").src = "imghead/btn_ac2_03.jpg";
}