var counters = new Object();
counters['Martian_Landing'] = { base : 682044, sec: 1.55, inc: 4 };
counters['Dragons_Lair'] = { base : 198942, sec: 1.55, inc: 4 };
counters['Lucky_Ink'] = { base : 5521833, sec: 1.55, inc: 7 };
counters['Haunted_House'] = { base : 229992, sec: 1.33, inc: 9 };
counters['Pay_Day_Slots'] = { base : 277571, sec: 0.922, inc: 6 };
counters['Super_777'] = { base : 224709, sec: 0.96, inc: 9 };
counters['Fruity_Loot'] = { base : 290368, sec: 3.1, inc: 2 };
counters['Nashville_Gold'] = { base : 2639425, sec: 0.65, inc: 9 };
counters['Golden_Goal'] = { base : 564817, sec: 4.653, inc: 3 };
counters['Pirates_Treasure'] = { base : 5318000, sec: 0.864, inc: 4 };
counters['Quarterback'] = { base : 682049, sec: 1.55, inc: 1 };
counters['Atlantis'] = { base : 720464, sec: 3.1, inc: 2 };
counters['Joes_Jackpots'] = { base : 188839, sec: 0.65, inc: 9 };
counters['Caribbean_Poker'] = { base : 748741, sec: 1.55, inc: 1 };
counters['Keno'] = { base : 308164, sec: 0.864, inc: 4 };

function formatNumber (i) {
  var num     = i + '';
  var len     = num.length;
  var result  = '';
  var pos     = 0;
  var charpos = len;
  for (j = 0; j < len; j++) {
    charpos--;
    if (j == 3) {
      result = num.charAt(charpos) + ',' + result;
      pos    = j;
    } 
    else if (j == (pos + 3)) {
      result = num.charAt(charpos) + ',' + result;
      pos    = j;
    }
    else {
      result = num.charAt(charpos) + result + '';
    }
  }
  return result;
}

function incrJackpot (id) {
  if (counters[id]) {
    if (counters[id].timer) clearTimeout(counters[id].timer);

    var amt = formatNumber(counters[id].base);
    var m   = Math.round(Math.random() * counters[id].inc);
    var n   = Math.round(Math.random()) > 0 ? 1 : -1;

    counters[id].base += counters[id].inc + n * m;

    if (document.getElementById) {
      var elem = document.getElementById(id);
      if (elem && counters[id]) {
        var cn = elem.childNodes;
        while (cn.length > 0) elem.removeChild(cn[0]);

        var text = document.createTextNode("¥100  -  ¥" + amt);
        elem.appendChild(text);
      }
    }
    else {
      // doing it the netscape 4 way :P
      var jp = document.forms['jackpot'];
      if (jp) {
        if (jp[id]) {
          jp[id].value = '$' + amt;
        }
        else {
          document.write('<input name="' + id + '" class="jackpot" type="text" size="11">\n');
        }
      }
    }

    var sec = counters[id].sec * 1000;
    counters[id].timer = setTimeout('incrJackpot("' + id + '")', sec);
  }
}