function Menus() {
   this.menus = Menus.arguments;
   this.show = menusShow;
   this.hide = menusHide;
   this.toggle = menusToggle;
   this.visible = menusVisible;
   this.setTimer = menusSetTimer;
   this.clearTimer = menusClearTimer;
   this.names = new Array(this.menus.length);
   this.last = -1;
   var i;
   for (i = 0;i < this.menus.length;i++) {
      this.names[this.menus[i].name] = i;
   }
}

function menusVisible(name) {
   var index = this.names[name];
   return(this.menus[index].visible());
}

function menusToggle(name) {
   var visible = this.visible(name);
   if (visible) {
      this.hide(name);
   }
   else {
      this.show(name);
   }
}

function menusShow(name, e, dx, dy, rx, ry) {
   if (this.overlay) {
      var i;
      for (i = 0;i < this.overlay.length;i++) {
         var obj = document.getElementById(this.overlay[i]);
         if (obj) {
            obj.style.visibility = 'hidden';
         }
      }
   }
   if (this.last >= 0) {
      this.menus[this.last].hide();
   }
   var index = this.names[name];
   this.menus[index].show(e, dx, dy, rx, ry);
   this.last = index;
}

function menusHide(name) {
   var index = this.last;
   if (name) {
      index = this.names[name];
   }
   if (index >= 0) {
      this.menus[index].hide();
   }
   this.last = -1;
   if (this.overlay) {
      var i;
      for (i = 0;i < this.overlay.length;i++) {
         var obj = document.getElementById(this.overlay[i]);
         if (obj) {
            obj.style.visibility = 'visible';
         }
      }
   }
}

function menusSetTimer(name) {
   var index = this.names[name];
   if (index >= 0) {
      this.menus[index].setTimer(this.name);
   }
}

function menusClearTimer(name) {
   var index = this.names[name];
   if (index >= 0) {
      this.menus[index].clearTimer();
   }
}

function Menu(name, type, timer) {
   this.name = name;
   if (!type) {
      type = 'visibility';
   }
   if (!timer) {
      timer = 500;
   }
   this.type = type;
   this.timer = timer;
   this.show = menuShow;
   this.hide = menuHide;
   this.visible = menuVisible;
   this.setTimer = menuSetTimer;
   this.clearTimer = menuClearTimer;
}

function menuVisible() {
   var obj = document.getElementById(this.name);
   if (this.type == 'visibility') {
      if (obj.style.visibility == 'visible') {
         return(true);
      }
      else {
         return(false);
      }
   }
   else {
      if (obj.style.display == this.type) {
         return(true);
      }
      else {
         return(false);
      }
   }
}

function menuShow(e, dx, dy, rx, ry) {
   this.clearTimer();
   var obj = document.getElementById(this.name);
   if (e) {
      var x = 0, y = 0, xMax = 0, yMax = 0;
      x = getXPos(e);
      y = getYPos(e);
      if (document.all) {
         xMax = document.body.clientWidth + document.body.scrollLeft;
         yMax = document.body.clientHeight + document.body.scrollTop;
         //dx += rx;
         //dy += ry;
      }
      else if (document.getElementById) {
         xMax = window.innerWidth + window.pageXOffset;
         yMax = window.innerHeight + window.pageYOffset;
      }
      obj.style.left = (x + dx) + 'px';
      obj.style.top = (y + dy) + 'px';
   }
   if (this.type == 'visibility') {
      obj.style.visibility = 'visible';
   }
   else {
      obj.style.display = this.type;
   }
}

function menuHide() {
   this.clearTimer();
   var obj = document.getElementById(this.name);
   if (this.type == 'visibility') {
      obj.style.visibility = 'hidden';
   }
   else {
      obj.style.display = 'none';
   }
}

function menuSetTimer(name) {
   this.timerid = setTimeout(name+".hide('"+this.name+"')", this.timer);
}

function menuClearTimer() {
   if (this.timerid) {
      clearTimeout(this.timerid);
   }
}

function Rollovers(name, path, on, off, ext) {
   this.name = name;
   this.path = path;
   this.on = on;
   this.off = off;
   this.ext = ext;
   this.onImages = new Array();
   this.offImages = new Array();
   this.add = rolloversAdd;
   this.turnOn = rolloversTurnOn;
   this.turnOff = rolloversTurnOff;
}

function rolloversAdd() {
   for (var i=0;i < rolloversAdd.arguments.length;i++) {
      var k = rolloversAdd.arguments[i];
      this.onImages[k] = new Image();
      this.onImages[k].src = this.path+k+this.on+'.'+this.ext;
      this.offImages[k] = new Image();
      this.offImages[k].src = this.path+k+this.off+'.'+this.ext;
   }
}

function rolloversTurnOn(key) {
   var d = document.getElementById(this.name+'-'+key);
   d.src = this.onImages[key].src;
}

function rolloversTurnOff(key) {
   var d = document.getElementById(this.name+'-'+key);
   d.src = this.offImages[key].src;
}

function getXPos(id) {
   var obj = document.getElementById(id);
   if (!obj) {
      return(0);
   }
   var x = 0;
   if (obj.offsetParent) {
      while (obj.offsetParent) {
         x += obj.offsetLeft;
         obj = obj.offsetParent;
      }
   }
   else if (obj.x) {
      x += obj.x;
   }
   return(x);
}

function getYPos(id) {
   var obj = document.getElementById(id);
   if (!obj) {
      return(0);
   }
   var y = 0;
   if (obj.offsetParent) {
      while (obj.offsetParent) {
         y += obj.offsetTop;
         obj = obj.offsetParent;
      }
   }
   else if (obj.y) {
      x += obj.y;
   }
   return(y);
}