function first()
{
  var v = "v";
  var im = "im";
  for (var i= 0;i< 3;i++)
  {
    var obj = document.getElementById(v + i);
    var iobj = document.getElementById(im + i);
    if(i == 0)
    {
      obj.style.display=="";
      iobj.src = "../images/commonality/0401_3.gif";
    }
    else
    {
      obj.style.display="none";
      iobj.src = "../images/commonality/0401_6.gif";
    }
  }
}

function change(obj)
{
  var v = "v";
  var im = "im";
  if(obj.style.display=="none")
  {
    obj.style.display="";
  }
  for (var i= 0;i< 3;i++)
  {
    var objs = document.getElementById(v + i);
    var iobj = document.getElementById(im + i);
    if(obj != objs)
    {
      objs.style.display="none";
      iobj.src = "../images/commonality/0401_6.gif";
    }
    else
    {
      iobj.src = "../images/commonality/0401_3.gif";
    }
  }
}

function clipboard(str)
{
   clipboardData.setData("TEXT", str);
   alert('地址已复制，可以粘贴到QQ、MSN或通过其他方式发给好友！');
}