var _currentSide = null;
$(document).ready(function(){
  setPageWidth();
  $('.left-taobao').mouseover(goSide).mouseout(outSide);
  $('.right-content-www').mouseover(goSide).mouseout(outSide);
  //$('.explore-comments').animate({"scrollTop":20});
//  $('.explore-comments').attr("scrollTop",10);
  setTimeout(doCommentSlide,3000);
});
var bCommentSlideReverse=false;
function doCommentSlide(){
  var _step = 138;
  var _screen = 138;
  var _con = $('.explore-comments');
  var _height = $('.explore-comments-con').height();
  var _top = parseInt(_con.attr('scrollTop'));
  if(!_top){
    _top=0;
  }
  if(bCommentSlideReverse){
    var _needScroll = _top-_step;
    if(_top>0){
      if(_needScroll>0){
        _con.animate({'scrollTop':_needScroll});
      }else{
        _con.animate({'scrollTop':0});
        bCommentSlideReverse = false;
      }
    }else{
      bCommentSlideReverse = false;
    }
  }else{
    var _needScroll = _height-_screen-_top;
    if(_needScroll>0){
      if(_needScroll>_step){
        _con.animate({'scrollTop':_top+_step});
      }else{
        _con.animate({'scrollTop':_top+_needScroll});
        bCommentSlideReverse = true;
      }
    }else{
      bCommentSlideReverse = true;
    }
  }
  setTimeout(doCommentSlide,3000);
}
function outSide(){
  var _class = getSideClass(this);
  if(!_class){
    return;
  }
  if(_class=='left-taobao'){
  }
}
function goSide(){
  var _class = getSideClass(this);
  if(!_class){
    return;
  }
  if(_class=='left-taobao'){
    if(_currentSide=='left'){
      return;
    }
    $('.left-taobao .left-taobao-arrow img').attr('class','left-arrow-focus');
    $('.right-content-www .right-www-arrow img').attr('class','right-arrow');
    _currentSide='left';
  }else if(_class=='right-content-www'){
    if(_currentSide=='right'){
      return;
    }
    $('.right-content-www .right-www-arrow img').attr('class','right-arrow-focus');
    $('.left-taobao .left-taobao-arrow img').attr('class','left-arrow');
    _currentSide='right';
  }
}
function getSideClass(_node){
  if(!_node){
    return null;
  }
  if(_node.className=='left-taobao'){
    return 'left-taobao';
  }
  if(_node.className=='right-content-www'){
    return 'right-content-www';
  }
  var _parent = _node.parentNode();
  while(_parent && _parent.nodeName.toLowerCase()!='body'){
    if(_parent.className=='left-taobao'){
      return 'left-taobao';
    }
    if(_parent.className=='right-content-www'){
      return 'right-content-www';
    }
    _parent = _node.parentNode();
  }
  return null;
}
function setPageWidth(){
  var _w=document.body.clientWidth;
  if(_w<=1002){
    return;
  }
  var _extWidth = _w-1002;
  var _halfWidth = parseInt((_w-1002)/2);
  var _rightWidth = _halfWidth;
  var _leftWidth = _extWidth-_halfWidth;
  var _pos = $('.header-banner').offset();
  var $left = $('#header-adjust-left');
  var $right = $('#header-adjust-right');
  if($left.length==0){
    $('body').append('<div id="header-adjust-left" style="width:'+_leftWidth+'px;height:199px;background-color:#688F26;position:absolute;left:0px;top:'+_pos.top+'px;overflow:hidden"></div>');
  }else{
    $left.width(_leftWidth).css({top:_pos.top});
  }
  if($right.length==0){
    $('body').append('<div id="header-adjust-right" style="width:'+_rightWidth+'px;height:199px;background-color:#0363CC;position:absolute;left:'+(_pos.left+1002)+'px;top:'+_pos.top+'px;overflow:hidden"></div>');
  }else{
    $right.width(_rightWidth).css({left:_pos.left+1002,top:_pos.top});
  }
}
window.onresize=setPageWidth;