// --------------------------------------------------------
    function selector_on(id){
      //alert(document.getElementById(id).style.backgroundPosition);
      document.getElementById(id).style.backgroundPosition='center bottom';
     // alert(document.getElementById(id).style.backgroundPosition);
    }
    function selector_off(id){
      // alert(document.getElementById(id).style.backgroundposition);
      document.getElementById(id).style.backgroundPosition='center top';

    }
    
function mkcore(jmeno, domena, tld){
  var ret=jmeno;
  ret += String.fromCharCode(63+1);
  if(typeof(domena)=="undefined") ret += 'virtual-zoom.cz';
  else if(typeof(tld)=="undefined") ret += domena+'.cz';
  else ret += domena+'.'+tld;
  return (ret);
}

function mke(jmeno, domena, tld) {
  document.write(mkcore(jmeno, domena, tld));
}

function mkm(jmeno, domena, tld) {
  document.write('mai');
  document.write('lto'+String.fromCharCode(58));
  mke(jmeno, domena, tld);
}

function gom(jmeno, domena, tld) {
  var dst='mai';
  dst += 'lto'+String.fromCharCode(58);
  dst += mkcore(jmeno,domena,tld);
  w1=window.open(dst);
  if (w1) w1.close();
}

function mkhref(jmeno, domena, tld, atr) {
  document.write('<a href="javascript:gom(\''+jmeno+'\'');
  if(typeof(domena)!="undefined") {
   document.write(', \''+domena+'\'');
   if(typeof(tld)!="undefined") document.write(', \''+tld+'\'');
  }
  document.write(')"');
  if(typeof(atr)!="undefined") document.write(' '+atr);
  document.write('>');
  document.write(mkcore(jmeno, domena, tld));
  document.write('</a>');
}

function mkhrefnopen(jmeno, domena, tld, atr) {
  document.write('<a href="');
  mkm(jmeno, domena, tld);
  document.write('"');
  if(typeof(atr)!="undefined") document.write(' '+atr);
  document.write('>');
  document.write(mkcore(jmeno, domena, tld));
  document.write('</a>');
}

function mk_form_to (form_name, jmeno)
 {
   var F = MM_findObj ( form_name );

   F.To.value=mkcore(jmeno);
 }

// --------------------------------------------------------------------