/*--------------新鲜事滚动----------------*/
var _num=_n=0,
_autohidden,_arrObj,_oHeight;
function flilter(elem,i,t){
var o=document.getElementById("actDbList");
if(!o) return false;
var elem=o.getElementsByTagName("dl")[0];
  if (elem.movement) {
    clearTimeout(elem.movement);
  }
  if (!_n===0) _n = parseInt(elem['style'][!-[1,]?'filter':'opacity']);
if(_n>=i){
return true;
}
    if (_n < i) {
    var dist = Math.ceil((i - _n)/10);
    _n = _n + dist;
  }
  if (_n > i) {
    var dist = Math.ceil((i - _n)/10);
    _n = _n - dist;
  }
elem['style'][!-[1,]?'filter':'opacity']=!-[1,]?'alpha(opacity='+_n+')':_n/100;
var repeat = "flilter('"+elem+"',"+i+","+t+")";
  elem.movement = setTimeout(repeat,t);
}
function moveElement(elem,final_y,interval) {
var o=document.getElementById("actDbList");
if(!o) return false;
var elem=o.getElementsByTagName("dl")[0];
  if (elem.movement) {
    clearTimeout(elem.movement);
  }
  if (!elem.style.height) {
    elem.style.height = "0";
  } 
  var ypos = parseInt(elem.style.height);
    
  if (ypos == final_y) {
  flilter(o.getElementsByTagName("dl")[0],100,40);
    return true;
  }
    if (ypos < final_y) {
    var dist = Math.ceil((final_y - ypos)/10);
    ypos = ypos + dist;
  }
  if (ypos > final_y) {
    var dist = Math.ceil((ypos - final_y)/10);
    ypos = ypos - dist;
  }
  elem.style.height = ypos + "px";
  var repeat = "moveElement('"+elem+"',"+final_y+","+interval+")";
  elem.movement = setTimeout(repeat,interval);
}
function step(obj){
var _arrO=document.getElementById("DB");
if(!_arrO) return false;
var _arr=_arrO.getElementsByTagName("dl");
if (_autohidden) {
        clearInterval(_autohidden);
    }
_n=0;
_arrObj=_arr[_num];
_max=_arr.length;
var o=document.getElementById(obj);
var newNode= document.createElement("dl");
o.insertBefore(newNode,o.getElementsByTagName("dl")[0]); 
var s=o.getElementsByTagName("dl")[0];
s.style.cssText="height:0;opacity:0;filter:Alpha(opacity=0);overflow:hidden";
s.style.className="clear";
s.innerHTML=_arrObj.innerHTML;
_oHeight=_arrObj.offsetHeight;
moveElement(s,_oHeight,10);
var lastNode=o.getElementsByTagName("dl")[(o.getElementsByTagName("dl").length-1)];
var reLastNode=o.removeChild(lastNode);
_num++;
if(_num>=_max){
_num=0;
}
 stopMove("actDbList");
_autohidden = setTimeout(function(){step(obj);},5000);
}
 function stopMove(o){
 var o=document.getElementById(o);
 if(!o) return false;
  o.onmouseover=function(){
  if (_autohidden) {
          clearTimeout(_autohidden);
      }
  }
  o.onmouseout=function(){
  _autohidden = setTimeout(function(){step("actDbList");},5000);
  }
 }
/*--------------新鲜事滚动结束----------------*/