browser = (((navigator.appName == "Netscape") && (parseInt(navigator.appVersion) >= 3 )) || ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) >= 3 )))

function imgover(cellid) {
  try {
    if(browser) {
      document.getElementById(cellid).src = eval(cellid+"_over.src");
      document.getElementById(cellid).style.cursor= "pointer";
      return true;
    }
  }
  catch(err) {
    alert("Hiba: imgover()\n\n("+err.message+": "+err.name+")");
    return false;
  }
}

function imgout(cellid) {
  try {
    if(browser) {
      document.getElementById(cellid).src = eval(cellid+"_norm.src");
      return true;
    }
  }
  catch(err) {
    alert("Hiba: imgout()\n\n("+err.message+": "+err.name+")");
    return false;
  }
}