browserName = navigator.appName;
browserVer = parseInt(navigator.appVersion);
version = "no";
if (browserName == "Netscape" && browserVer >= 3) version = "ok";
if (browserName == "Microsoft Internet Explorer" && browserVer >= 4) version = "ok";
if (version == "ok")
{
 button1on = new Image();  button1on.src = "butmenu01.gif";  button1off = new Image();  button1off.src = "butmenu01b.gif";
 button2on = new Image();  button2on.src = "butmenu02.gif";  button2off = new Image();  button2off.src = "butmenu02b.gif";
 button3on = new Image();  button3on.src = "butmenu03.gif";  button3off = new Image();  button3off.src = "butmenu03b.gif";
 button4on = new Image();  button4on.src = "butmenu04.gif";  button4off = new Image();  button4off.src = "butmenu04b.gif";
 button5on = new Image();  button5on.src = "butmenu05.gif";  button5off = new Image();  button5off.src = "butmenu05b.gif";
 button18on = new Image();  button18on.src = "butmenu18.gif";  button18off = new Image();  button18off.src = "butmenu18b.gif";
 button6on = new Image();  button6on.src = "butmenu06.gif";  button6off = new Image();  button6off.src = "butmenu06b.gif";
 button7on = new Image();  button7on.src = "butmenu07.gif";  button7off = new Image();  button7off.src = "butmenu07b.gif"; 
 button8on = new Image();  button8on.src = "butmenu08.gif";  button8off = new Image();  button8off.src = "butmenu08b.gif";
 button9on = new Image();  button9on.src = "butmenu09.gif";  button9off = new Image();  button9off.src = "butmenu09b.gif";
 button10on = new Image();  button10on.src = "butmenu10.gif";  button10off = new Image();  button10off.src = "butmenu10b.gif";
 button11on = new Image();  button11on.src = "butmenu11.gif";  button11off = new Image();  button11off.src = "butmenu11b.gif";
 button12on = new Image();  button12on.src = "butmenu12.gif";  button12off = new Image();  button12off.src = "butmenu12b.gif";
 button13on = new Image();  button13on.src = "butmenu13.gif";  button13off = new Image();  button13off.src = "butmenu13b.gif";
 button14on = new Image();  button14on.src = "butmenu14.gif";  button14off = new Image();  button14off.src = "butmenu14b.gif";
 button15on = new Image();  button15on.src = "butmenu15.gif";  button15off = new Image();  button15off.src = "butmenu15b.gif";
 button16on = new Image();  button16on.src = "butmenu16.gif";  button16off = new Image();  button16off.src = "butmenu16b.gif";
 button17on = new Image();  button17on.src = "butmenu17.gif";  button17off = new Image();  button17off.src = "butmenu17b.gif";
 button19on = new Image();  button19on.src = "butmenu19.gif";  button19off = new Image();  button19off.src = "butmenu19b.gif"; 
}
function select(imgName) 
{
  if (version == "ok")
  {
    imgOn = eval(imgName + "off.src");
    document [imgName].src = imgOn;
  }
}
function deselect(imgName) 
{
  if (version == "ok")
  {
    imgOff = eval(imgName + "on.src");
    document [imgName].src = imgOff;
  }
}