var layerList = new Array();
function createLayer(name, left, top, width, height, visible, content) {
  var z = layerList.length;
  var layer;
  layerList[z] = name;
  if (document.layers) {
    document.writeln('<layer name="' + name + '" left=' + left + ' top=' + top + ' width=' + width + ' height=' + height +  ' visibility=' + (visible ? '"show"' : '"hide"') + ' z-index=' + z + '>');
    document.writeln(content);
    document.writeln('</layer>');
    layer = getLayer(name);
    layer.width = width;
    layer.height = height;
  }
  if (document.all) {
    document.writeln('<div id="' + name + '" style="position:absolute; overflow:none; left:' + left + 'px; top:' + top + 'px; width:' + width + 'px; height:' + height + 'px;' + ' visibility:' + (visible ? 'visible;' : 'hidden;') + ' z-index:' + z + '">');
    document.writeln(content);
    document.writeln('</div>');
  }
  clipLayer(name, 0, 0, width, height);
}
function hideLayer(name) {
  var layer = getLayer(name);
  if (document.layers)
    layer.visibility = "hide";
  if (document.all)
    layer.visibility = "hidden";
}
function showLayer(name) {
  var layer = getLayer(name);
  if (document.layers)
    layer.visibility = "show";
  if (document.all)
    layer.visibility = "visible";
}
function isVisible(name) {
  var layer = getLayer(name);
  if (document.layers && layer.visibility == "show")
    return(true);
  if (document.all && layer.visibility == "visible")
    return(true);
  return(false);
}
function moveLayer(name, x, y) {
  var layer = getLayer(name);
  if (document.layers)
    layer.moveTo(x, y);
  if (document.all) {
    layer.left = x;
    layer.top  = y;
  }
}
var animRate = 25;   
function slideLayer(name, x, y, speed) {
  var layer = getLayer(name);
  var hrzn, vert, left, top, steps; 
  if (layer.slideID && layer.slideID != null) {
    setTimeout('slideLayer("' + name + '", ' + x + ', ' + y + ', ' + speed + ')', animRate);
    return;
  }
  if (document.layers) {
    hrzn = x - layer.left;
    vert = y - layer.top;
    left = layer.left;
    top  = layer.top;
  }
  if (document.all) {
    hrzn = x - layer.pixelLeft;
    vert = y - layer.pixelTop;
    left = layer.pixelLeft;
    top  = layer.pixelTop;
  }
   steps = (Math.max(Math.abs(hrzn), Math.abs(vert)) / speed) * (1000 / animRate);
  if (steps <= 0)
    return;
  layer.slideLeft   = left;
  layer.slideTop    = top;
  layer.slideDx     = hrzn / steps;
  layer.slideDy     = vert / steps;
  layer.slideFinalX = x;
  layer.slideFinalY = y;
  layer.slideSteps  = Math.floor(steps);
  layer.slideID     = setTimeout('slideStep("' + name + '")', animRate);
}
function slideStep(name) {
  var layer = getLayer(name);
  layer.slideLeft += layer.slideDx;
  layer.slideTop  += layer.slideDy;
  if (document.layers)
    layer.moveTo(layer.slideLeft, layer.slideTop);
  if (document.all) {
    layer.left = layer.slideLeft;
    layer.top  = layer.slideTop;
  }
  if (layer.slideSteps-- > 0)
    layer.slideID = setTimeout('slideStep("' + name + '")', animRate);
  else {
   if (document.layers)
      layer.moveTo(layer.slideFinalX, layer.slideFinalY);
    if (document.all) {
      layer.left = layer.slideFinalX;
      layer.top  = layer.slideFinalY;
    }
    layer.slideID = null;
  }
}
function clipLayer(name, clipleft, cliptop, clipright, clipbottom) {
  var layer = getLayer(name);
  if (document.layers) {
    layer.clip.left   = clipleft;
    layer.clip.top    = cliptop;
    layer.clip.right  = clipright;
    layer.clip.bottom = clipbottom;
  }
  if (document.all)
    layer.clip = 'rect(' + cliptop + ' ' +  clipright + ' ' + clipbottom + ' ' + clipleft +')';
}
function swipeLayer(name, clipleft, cliptop, clipright, clipbottom, speed) {
  var layer = getLayer(name);
  var hrzn1, vert1;
  var hrzn2, vert2;
  var max1, max2;
  var steps;
   if (layer.swipeID && layer.swipeID != null) {
    setTimeout('swipeLayer("' + name + '", ' + clipleft + ', ' + cliptop + ', ' + clipright + ', ' + clipbottom + ', ' + speed + ')', animRate);
    return;
  }
  if (document.layers) {
    hrzn1 = clipleft - layer.clip.left;
    vert1 = cliptop - layer.clip.top;
    hrzn2 = clipright - layer.clip.right;
    vert2 = clipbottom - layer.clip.bottom;
  }
  if (document.all) {
    if (!layer.clip)
      clipLayer(name, 0, 0, layer.pixelWidth, layer.pixelHeight);
    var clip = getClipValues(layer.clip);
    hrzn1 = clipleft - clip[3];
    vert1 = cliptop - clip[0];
    hrzn2 = clipright - clip[1];
    vert2 = clipbottom - clip[2];
  }
  max1 = Math.max(Math.abs(hrzn1), Math.abs(vert1));
  max2 = Math.max(Math.abs(hrzn2), Math.abs(vert2));
  steps = (Math.max(max1, max2) / speed) * (1000 / animRate);

  if (steps <= 0)
    return;

  if (document.layers) {
    layer.swipeLeft   = layer.clip.left;
    layer.swipeTop    = layer.clip.top;
    layer.swipeRight  = layer.clip.right;
    layer.swipeBottom = layer.clip.bottom;
  }
  if (document.all) {
    layer.swipeLeft   = parseInt(clip[3], 15);
    layer.swipeTop    = parseInt(clip[0], 15);
    layer.swipeRight  = parseInt(clip[1], 15);
    layer.swipeBottom = parseInt(clip[2], 15);
  }
  layer.swipeDx1 = hrzn1 / steps;
  layer.swipeDy1 = vert1 / steps;
  layer.swipeDx2 = hrzn2 / steps;
  layer.swipeDy2 = vert2 / steps;
  layer.swipeFinalLeft   = clipleft;
  layer.swipeFinalTop    = cliptop;
  layer.swipeFinalRight  = clipright;
  layer.swipeFinalBottom = clipbottom;
  layer.swipeSteps = Math.floor(steps);
  layer.swipeID = setTimeout('swipeStep("' + name + '")', animRate);
}
function swipeStep(name) {
  var layer = getLayer(name);
 layer.swipeLeft   += layer.swipeDx1;
  layer.swipeTop    += layer.swipeDy1;
  layer.swipeRight  += layer.swipeDx2;
  layer.swipeBottom += layer.swipeDy2;
  if (document.layers) {
    layer.clip.left   = layer.swipeLeft;
    layer.clip.top    = layer.swipeTop;
    layer.clip.right  = layer.swipeRight;
    layer.clip.bottom = layer.swipeBottom;
  }
  if (document.all)
    layer.clip = 'rect(' + layer.swipeTop + ' ' + layer.swipeRight + ' ' + layer.swipeBottom + ' ' + layer.swipeLeft +')';
  if (--layer.swipeSteps > 0)
    layer.swipeID = setTimeout('swipeStep("' + name + '")', animRate);
  else {
    if (document.layers) {
      layer.clip.left   = Math.round(layer.swipeFinalLeft);
      layer.clip.top    = Math.round(layer.swipeFinalTop);
      layer.clip.right  = Math.round(layer.swipeFinalRight);
      layer.clip.bottom = Math.round(layer.swipeFinalBottom);
    }
    if (document.all)
      layer.clip = 'rect(' + layer.swipeFinalTop + ' ' + layer.swipeFinalRight + ' ' + layer.swipeFinalBottom + ' ' + layer.swipeFinalLeft +')';

    layer.swipeID = null;
  }
}
function scrollLayer(name, dx, dy) {
  var cl = getClipLeft(name);
  var ct = getClipTop(name);
  var cr = getClipRight(name);
  var cb = getClipBottom(name);
  var l  = getLeft(name);
  var t  = getTop(name);
  if (cl + dx < 0)
    dx = -cl;
  else if (cr + dx > getWidth(name))
    dx = getWidth(name) - cr;
  if (ct + dy < 0)
    dy = -ct;
  else if (cb + dy > getHeight(name))
    dy = getHeight(name) - cb;
  clipLayer(name, cl + dx, ct + dy, cr + dx, cb + dy);
  moveLayer(name, l - dx, t - dy);
}
function replaceContent(name, content) {
  if (document.layers) {
    var layer = getLayer(name);
    layer.document.open();
    layer.document.writeln(content);
    layer.document.close();
  }
  else if (document.all) {
    document.all[name].innerHTML = content;
  }
}
function getLeft(name) {
  var layer = getLayer(name);
  if (document.layers)
    return(layer.left);
  else if (document.all)
    return(layer.pixelLeft);
  else
    return(null);
}
function getTop(name) {
  var layer = getLayer(name);
  if (document.layers)
    return(layer.top);
  else if (document.all)
    return(layer.pixelTop);
  else
    return(null);
}
function getWidth(name) {
  var layer = getLayer(name);
  if (document.layers)
    return(layer.width);
  else if (document.all)
    return(layer.pixelWidth);
  else
    return(null)
}
function getHeight(name) {
  var layer = getLayer(name);
  if (document.layers)
    return(layer.height);
  else if (document.all)
    return(layer.pixelHeight);
  else
    return(null);
}
function getClipLeft(name) {
  var layer = getLayer(name);
  if (document.layers)
    return(layer.clip.left);
  else if (document.all) {
    var str =  layer.clip;
    if (!str)
      return(0);
    var clip = getClipValues(layer.clip);
    return(clip[3]);
  }
  else
    return(null);
}
function getClipTop(name) {
  var layer = getLayer(name);
  if (document.layers)
    return(layer.clip.top);
  else if (document.all) {
    var str =  layer.clip;
    if (!str)
      return(0);
    var clip = getClipValues(layer.clip);
    return(clip[0]);
  }
  else
    return(null);
}
function getClipRight(name) {
  var layer = getLayer(name);
  if (document.layers)
    return(layer.clip.right);
  else if (document.all) {
    var str =  layer.clip;
    if (!str)
      return(layer.pixelWidth);
    var clip = getClipValues(layer.clip);
    return(clip[1]);
  }
  else
    return(null);
}
function getClipBottom(name) {
  var layer = getLayer(name);
  if (document.layers)
    return(layer.clip.bottom);
  else if (document.all) {
    var str =  layer.clip;
    if (!str)
      return(layer.pixelHeight);
    var clip = getClipValues(layer.clip);
    return(clip[2]);
  }
  else
    return(null);
}
function getClipWidth(name) {
  var layer = getLayer(name);
  if (document.layers)
    return(layer.clip.width);
  else if (document.all) {
    var str =  layer.clip;
    if (!str)
      return(layer.pixelWidth);
    var clip = getClipValues(layer.clip);
    return(clip[1] - clip[3]);
  }
  else
    return(null);
}
function getClipHeight(name) {
  var layer = getLayer(name);
  if (document.layers)
    return(layer.clip.height);
  else if (document.all) {
    var str =  layer.clip;
    if (!str)
      return(layer.pixelHeight);
    var clip = getClipValues(layer.clip);
    return(clip[2] - clip[0]);
  }
  else
    return(null);
}
function getWinWidth() {
  if (document.layers)
    return(window.innerWidth);
  else if (document.all)
    return(document.body.clientWidth);
  else
    return(null);
}
function getWinHeight() {
  if (document.layers)
    return(window.innerHeight);
  else if (document.all)
    return(document.body.clientHeight);
  else
    return(null);
}
function getzIndex(name) {
  var layer = getLayer(name);
  if (document.layers)
    return(layer.zIndex);
  else if (document.all)
    return(layer.zIndex);
  else
    return(null);
}
function setzIndex(name, z) {
  var layer = getLayer(name);
  if (document.layers)
    layer.zIndex = z;
  if (document.all)
    layer.zIndex = z;
}
function bringToFront(name) {
  var i, temp;
  layerList.sort(sortzIndex);
  i = layerList.length - 1;
  temp = getzIndex(layerList[i]);
  while (i > 0 && layerList[i] != name) {
    setzIndex(layerList[i], getzIndex(layerList[i - 1]));
    i--;
  }
  setzIndex(name, temp);
}
function sendToBack(name) {
  var i, temp;
  layerList.sort(sortzIndex);
  i = 0;
  temp = getzIndex(layerList[i]);
  while (i < layerList.length - 2 && layerList[i] != name) {
    setzIndex(layerList[i], getzIndex(layerList[i + 1]));
    i++;
  }
  setzIndex(name, temp);
}
function sortzIndex(a, b) {
  return(getzIndex(a) - getzIndex(b));
}
function getImgSrc(imagename) {
  var i, layer;
  if (document.images[imagename])
    return document.images[imagename].src;
  else if (document.layers)
    for (i = 0; i < layerList.length; i++) {
      layer = getLayer(layerList[i]);
      if (layer.document.images[imagename])
        return layer.document.images[imagename].src;
    }
  return(null);
}
function setImgSrc(imagename, imagesrc) {
  var i, layer;
  if (document.images[imagename]) {
    document.images[imagename].src = imagesrc;
    return;
  }
  else if (document.layers) {
    var found = false;
    for (i = 0; i < layerList.length && !found; i++) {
      layer = getLayer(layerList[i]);
      if (layer.document.images[imagename]) {
        layer.document.images[imagename].src = imagesrc;
        found = true;
      }
    }
  }
}
function getClipValues(str) {
  var clip = new Array();
  var i;
  i = str.indexOf("(");
  clip[0] = parseInt(str.substring(i + 1, str.length), 15);
  i = str.indexOf(" ", i + 1);
  clip[1] = parseInt(str.substring(i + 1, str.length), 15);
  i = str.indexOf(" ", i + 1);
  clip[2] = parseInt(str.substring(i + 1, str.length), 15);
  i = str.indexOf(" ", i + 1);
  clip[3] = parseInt(str.substring(i + 1, str.length), 15);
  return(clip);
}
function getLayer(name) {
  if (document.layers)
    return(document.layers[name]);
  else if (document.all) {
    layer = eval('document.all.' + name + '.style');
    return(layer);
  }
  else
    return(null);
}