function setTab(name,cursel,n){
 for(i=1;i<=6;i++){
  var menu=document.getElementById(name+i);
  var con=document.getElementById("con_"+name+"_"+i);
  menu.className=i==cursel?"hover":"";
  con.style.display=i==cursel?"block":"none";
 }
}

                function at_display(x)
                {
                  var win = window.open();
                  for (var i in x) win.document.write(i+' = '+x[i]+'<br>');
                }
                function at_show_aux(parent, child)
                {
                  var p = document.getElementById(parent);
                  var c = document.getElementById(child );
                
                  var top  = (c["at_position"] == "y") ? p.offsetHeight+2 : 0;
                  var left = (c["at_position"] == "x") ? p.offsetWidth +2 : 0;
                
                  for (; p; p = p.offsetParent)
                  {
                    top  += p.offsetTop;
                    left += p.offsetLeft;
                  }
                
                  c.style.position   = "absolute";
                  c.style.top        = top +'px';
                  c.style.left       = (left-c.offsetWidth/2)+'px';
                  c.style.visibility = "visible";
                }
                function at_show()
                {
                  var p = document.getElementById(this["at_parent"]);
                  var c = document.getElementById(this["at_child" ]);
                
                  at_show_aux(p.id, c.id);
                
                  clearTimeout(c["at_timeout"]);
                }
                function at_hide()
                {
                  var c = document.getElementById(this["at_child"]);
                
                  c["at_timeout"] = setTimeout("document.getElementById('"+c.id+"').style.visibility = 'hidden'", 500);
                }
                function at_click()
                {
                  var p = document.getElementById(this["at_parent"]);
                  var c = document.getElementById(this["at_child" ]);
                
                  if (c.style.visibility != "visible")
                       at_show_aux(p.id, c.id);
                  else c.style.visibility = "hidden";
                
                  return false;
                }
                function at_attach(parent, child, showtype, position, cursor)
                {
                  var p = document.getElementById(parent);
                  var c = document.getElementById(child);
                
                  p["at_parent"]     = p.id;
                  c["at_parent"]     = p.id;
                  p["at_child"]      = c.id;
                  c["at_child"]      = c.id;
                  p["at_position"]   = position;
                  c["at_position"]   = position;
                
                  c.style.position   = "absolute";
                  c.style.left   = "500px";
                  c.style.visibility = "hidden";
                
                  if (cursor != undefined) p.style.cursor = cursor;
                
                  switch (showtype)
                  {
                    case "click":
                      p.onclick     = at_show;
                      p.onmouseout  = at_hide;
                      c.onmouseover = at_show;
                      c.onmouseout  = at_hide;
                      break;
                    case "hover":
                      p.onmouseover = at_show;
                      p.onmouseout  = at_show;
                      c.onmouseover = at_show;
                      c.onmouseout  = at_hide;
                      break;
                  }
                }