function loadBbsTopics(){
	var req=getRequest();
	var obj=$("bbs_img");
	var obj1=$("bbs_topics");
	var str= "/xml/main_bbs.xml";
	req.onreadystatechange=function(){
			if(req.readyState==4){
				obj.innerHTML="";
				obj1.innerHTML="";
					var x = $C('table');
					var y = x.appendChild($C('tbody'));
					var z = $C('tr');
					y.appendChild(z);
					var x1 = $C('table');
					var y1 = x1.appendChild($C('tbody'));
					var result=req.responseXML;
					var arr=req.responseXML.documentElement.getElementsByTagName("item");			
						for(var i=0;i<2;i++){
							var title=ElementData(arr[i],"title");
							var icon=ElementData(arr[i],"icon");
							var link=ElementData(arr[i],"link");
						 	var b=$C('td');
						 	z.appendChild(b);
						 	b.innerHTML='<a target="_blank" href="'+link+'"><img style="border:1 solid gray" title="'+title+'" width="120" height="80" border="0" src="'+icon+'" align="absmiddle"></a><br>';
						 	if(i==0){
							 	var b=$C('td');
							 	z.appendChild(b);
							 	b.innerHTML='<img src="http://fsjoy.com/img/main/line_dot01.gif" width="47" height="64">';
							}
						}
						for(var j=2;j<arr.length;j++){	
							var title=ElementData(arr[j],"title");
							var icon=ElementData(arr[j],"title");
							var link=ElementData(arr[j],"link");
							var z = $C('tr');
						 	y1.appendChild(z);
						 	var b=$C('td');
						 	z.appendChild(b);
						 	b.innerHTML='<img  src="http://www.fsjoy.com/img/main/bl_grey.gif" align="absmiddle">';
						 	var a=$C('td');
						 	z.appendChild(a);
						 	a.innerHTML='<a target="_blank" href='+link+'>'+title+'</a>';
						}
						obj.appendChild(x);
						obj1.appendChild(x1);
			};
		};
		req.open("GET",str,true);
		req.setRequestHeader ("Content-Type","text/html; charset=GBK"); 
		req.send("");
};

function $() {
  var elements = new Array();
  for (var i = 0; i < arguments.length; i++) {
    var element = arguments[i];
    if (typeof element == 'string')
      element = document.getElementById(element);
    if (arguments.length == 1) 
      return element;
    elements.push(element);
  }
  return elements;
};

function ElementData(element,subNodeName){
	var d=element.getElementsByTagName(subNodeName)[0].firstChild.data;
	return d;
};

function $C(tag){
	var obj=document.createElement(tag);
	return obj;
};