function tabulka(text) {
    if(document.getElementById) {
    document.getElementById("zoom").style.visibility="visible";
    document.getElementById("zoom").innerHTML=(text);  
    }
  else if(document.all) {
    document.all.zoom.style.visibility="visible";
    document.all.zoom.innerHTML=(text);  
    }
  else if(document.layers) {
     document.zoom.visibility="visible";
    document.zoom.document.write(text);
    document.zoom.document.close();
  }
}