BrowserName=navigator.appName;
 BrowserVersion=parseInt(navigator.appVersion);
 if (BrowserName=="Netscape" && BrowserVersion>=3)
  useable="yes";
 else
  useable="yes";

button10=new Button("aloldal/menu_hu_01_off.gif","aloldal/menu_hu_01_on.gif");
button11=new Button("aloldal/menu_hu_02_off.gif","aloldal/menu_hu_02_on.gif");
button12=new Button("aloldal/menu_hu_03_off.gif","aloldal/menu_hu_03_on.gif");

button13=new Button("aloldal/menu_en_01_off.gif","aloldal/menu_en_01_on.gif");
button14=new Button("aloldal/menu_en_02_off.gif","aloldal/menu_en_02_on.gif");
button15=new Button("aloldal/menu_en_03_off.gif","aloldal/menu_en_03_on.gif");

button16=new Button("aloldal/menu_de_01_off.gif","aloldal/menu_de_01_on.gif");
button17=new Button("aloldal/menu_de_02_off.gif","aloldal/menu_de_02_on.gif");
button18=new Button("aloldal/menu_de_03_off.gif","aloldal/menu_de_03_on.gif");

button20=new Button("fooldal/allec_01_off.gif","fooldal/allec_01_on.gif");
button21=new Button("fooldal/allec_02_off.gif","fooldal/allec_02_on.gif");
button22=new Button("fooldal/allec_03_off.gif","fooldal/allec_03_on.gif");

button23=new Button("fooldal/menu_hu_01_off.gif","fooldal/menu_hu_01_on.gif");
button24=new Button("fooldal/menu_hu_02_off.gif","fooldal/menu_hu_02_on.gif");
button25=new Button("fooldal/menu_hu_03_off.gif","fooldal/menu_hu_03_on.gif");
button26=new Button("fooldal/menu_en_01_off.gif","fooldal/menu_en_01_on.gif");
button27=new Button("fooldal/menu_en_02_off.gif","fooldal/menu_en_02_on.gif");
button28=new Button("fooldal/menu_en_03_off.gif","fooldal/menu_en_03_on.gif");
button29=new Button("fooldal/menu_de_01_off.gif","fooldal/menu_de_01_on.gif");
button30=new Button("fooldal/menu_de_02_off.gif","fooldal/menu_de_02_on.gif");
button31=new Button("fooldal/menu_de_03_off.gif","fooldal/menu_de_03_on.gif");

 function open_popup(popupname,w,h) {popup = window.open(popupname,'rkpopup','toolbar=no,location=no,directories=no,menubar=no,resizable=no,status=no,scrollbars=auto,width='+w+',height='+h);  }

 function Button(norm_src,sel_src)
 {
  if (useable=="yes")
  {
   this.norm=new Image();
   this.sel=new Image();
   this.norm.src=norm_src;
   this.sel.src=sel_src;
  }
 }

 function TurnToSel(ImageName)
 {
  if (useable=="yes")
  {
   NewSrc=eval(ImageName+".sel.src");
   document[ImageName].src=NewSrc;
  }
 }

 function TurnToNorm(ImageName)
 {
  if (useable=="yes")
  {
   NewSrc=eval(ImageName+".norm.src");
   document[ImageName].src=NewSrc;
  }
 }