function addBookmark(title) { 
	var url=parent.location.href;
	if (window.sidebar) {
		window.sidebar.addPanel(title, url,"");
	} else if( document.all ) {
	 	window.external.AddFavorite( url, title);
	} else if( window.opera && window.print ) {
		return true;
	}
}
function chage(id,count)
{
for(var i=0;i<count;i++)
{
  if(i==id)
  {
    document.getElementById("left"+id).className="tableftdiv1left_span";
    document.getElementById("content"+id).style.display="block";
  }
  else
  {
  document.getElementById("left"+i).className="";
  document.getElementById("content"+i).style.display="none";
  }
}
}