var status=0;
  if (navigator.appName == "Netscape" && parseInt(navigator.appVersion) >= 3  ) is3 = true;
  else
  if (navigator.appName.substring(0,9)=="Microsoft"&&parseInt(navigator.appVersion)>=4)
    is3=true
  else is3 = false;
  if (is3){
    but2= new Image(40,20); but2.src= "design/menu-1x2.gif";
    but2o=new Image(40,20); but2o.src="design/menu-1x2_on.gif";
    but2h=new Image(40,20); but2h.src="design/menu-1x2_on.gif";
	  but3= new Image(40,20); but3.src= "design/menu-1x3.gif";
    but3o=new Image(40,20); but3o.src="design/menu-1x3_on.gif";
    but3h=new Image(40,20); but3h.src="design/menu-1x3_on.gif";
	  but4= new Image(40,20); but4.src= "design/menu-1x4.gif";
    but4o=new Image(40,20); but4o.src="design/menu-1x4_on.gif";
    but4h=new Image(40,20); but4h.src="design/menu-1x4_on.gif";
  but5= new Image(40,20); but5.src= "design/menu-1x5.gif";
    but5o=new Image(40,20); but5o.src="design/menu-1x5_on.gif";
    but5h=new Image(40,20); but5h.src="design/menu-1x5_on.gif";
    but6= new Image(40,20); but6.src= "design/menu-1x6.gif";
    but6o=new Image(40,20); but6o.src="design/menu-1x6_on.gif";
    but6h=new Image(40,20); but6h.src="design/menu-1x6_on.gif";
}
  function hil(button,on){
    if (is3){
      if ((status!=0)&&(status!=button)&&(on==2))
        document.images["button"+status].src = eval("but"+status+".src");
      if (on==1) 
        text="o"; else text="";
      if ((on!=2)&&( status!=button  )) 
        document.images["button"+button].src = eval("but"+button+text+".src");
      if ((on==2)&&(status!=button)&&(button!=0)) 
        document.images["button"+button].src = eval("but"+button+"h"+".src");
      if (on==2) 
        status=button;
    }
  }