var xmlHttp;


function createXMLHttpRequest() {
    if (window.ActiveXObject) {
        xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
    } 
    else if (window.XMLHttpRequest) {
        xmlHttp = new XMLHttpRequest();
    }
}

var page=1;

function changeBa(page){
	
		createXMLHttpRequest();
		var url="/bbs/baShow.do?page="+page;
		
		xmlHttp.open("GET", url, true);
		
		xmlHttp.onreadystatechange = handleChangeBa;
   	
		xmlHttp.send(null);
	
	
}


function handleChangeBa(){

if(xmlHttp.readyState == 4) {
        	if(xmlHttp.status == 200) {
       	
        		var xmlDoc=xmlHttp.responseXML;
				      			
        		var resluts=xmlDoc.getElementsByTagName("result");
        		  
        		
        		
        		if(resluts.length!=0){
        	
        			var id=resluts[0].getAttribute("id");
        			
        			var text=resluts[0].getAttribute("text");
        			
        			var error=resluts[0].getAttribute("error");
        			
        			page=resluts[0].getAttribute("page");
        			
        			var value=text;
        			
        			
        			if(error!=null&&error!='') value=error;
        			
        			
        			document.getElementById("baText").innerHTML=value;
        			
        			
        			
        		}
        	}
        }
}