var lang = new Array();
var userAgent = navigator.userAgent.toLowerCase();
var is_opera = userAgent.indexOf('opera') != -1 && opera.version();
var is_moz = (navigator.product == 'Gecko') && userAgent.substr(userAgent.indexOf('firefox') + 8, 3);
var is_ie = (userAgent.indexOf('msie') != -1 && !is_opera) && userAgent.substr(userAgent.indexOf('msie') + 5, 3);

function $(id) 
{
 return document.getElementById(id);
}

Array.prototype.push = function(value) 
{
 this[this.length] = value;
 return this.length;
}

function doane(event) 
{
 e = event ? event : window.event;
 if(is_ie)
 {
  e.returnValue = false;
  e.cancelBubble = true;
 } 
 else if(e) 
 {
  e.stopPropagation();
  e.preventDefault();
 }
}

function isUndefined(variable) 
{
 return typeof variable == 'undefined' ? true : false;
}

function _attachEvent(obj, evt, func) 
{
 if(obj.addEventListener) 
 {
  obj.addEventListener(evt, func, false);
 } 
 else if(obj.attachEvent) 
 {
  obj.attachEvent("on" + evt, func);
 }
}

var jsmenu = new Array();
var ctrlobjclassName;
jsmenu['active'] = new Array();
jsmenu['timer'] = new Array();
jsmenu['iframe'] = new Array();

function initCtrl(ctrlobj, click, duration, timeout, layer) 
{
 if(ctrlobj && !ctrlobj.initialized) 
 {
  ctrlobj.initialized = true;
  ctrlobj.unselectable = true;

  ctrlobj.outfunc = typeof ctrlobj.onmouseout == 'function' ? ctrlobj.onmouseout : null;
  ctrlobj.onmouseout = function() 
  {
   if(this.outfunc) this.outfunc();
   if(duration < 3) jsmenu['timer'][ctrlobj.id] = setTimeout('hideMenu(' + layer + ')', timeout);
  }

  ctrlobj.overfunc = typeof ctrlobj.onmouseover == 'function' ? ctrlobj.onmouseover : null;
  ctrlobj.onmouseover = function(e) 
  {
   doane(e);
   if(this.overfunc) this.overfunc();
   if(click)
   {
    clearTimeout(jsmenu['timer'][this.id]);
   } 
   else 
   {
	for(var id in jsmenu['timer']) 
	{
	 if(jsmenu['timer'][id]) clearTimeout(jsmenu['timer'][id]);
	}
   }
  }
 }
}

function initMenu(ctrlid, menuobj, duration, timeout, layer, drag)
{
 if(menuobj && !menuobj.initialized)
 {
  menuobj.initialized = true;
  menuobj.ctrlkey = ctrlid;
  menuobj.onclick = ebygum;
  menuobj.style.position = 'absolute';
  if(duration < 3) 
  {
   if(duration > 1) 
   {
    menuobj.onmouseover = function() 
	{
	 clearTimeout(jsmenu['timer'][ctrlid]);
	}
   }
   if(duration != 1) 
   {
    menuobj.onmouseout = function() 
    {
	 jsmenu['timer'][ctrlid] = setTimeout('hideMenu(' + layer + ')', timeout);
    }
   }
  }
  menuobj.style.zIndex = 50;
  if(is_ie) 
  {
   menuobj.style.filter += "progid:DXImageTransform.Microsoft.shadow(direction=135,color=#CCCCCC,strength=2)";
  }
  if(drag) 
  {
   menuobj.onmousedown = function(event) {try{menudrag(menuobj, event, 1);}catch(e){}};
   menuobj.onmousemove = function(event) {try{menudrag(menuobj, event, 2);}catch(e){}};
   menuobj.onmouseup = function(event) {try{menudrag(menuobj, event, 3);}catch(e){}};
  }
 }
}

var menudragstart = new Array();
function menudrag(menuobj, e, op) 
{
 if(op == 1) 
 {
  if(in_array(is_ie ? event.srcElement.tagName : e.target.tagName, ['TEXTAREA', 'INPUT', 'BUTTON', 'SELECT']))
  {
   return;
  }
  menudragstart = is_ie ? [event.clientX, event.clientY] : [e.clientX, e.clientY];
  menudragstart[2] = parseInt(menuobj.style.left);
  menudragstart[3] = parseInt(menuobj.style.top);
  doane(e);
  } 
  else if(op == 2 && menudragstart[0]) 
  {
   var menudragnow = is_ie ? [event.clientX, event.clientY] : [e.clientX, e.clientY];
   menuobj.style.left = (menudragstart[2] + menudragnow[0] - menudragstart[0]) + 'px';
   menuobj.style.top = (menudragstart[3] + menudragnow[1] - menudragstart[1]) + 'px';
   doane(e);
  } 
  else if(op == 3) 
  {
   menudragstart = [];
   doane(e);
  }
}

function showMenu(ctrlid, click, offset, duration, timeout, layer, showid, maxh, drag) 
{
 var ctrlobj = $(ctrlid);
 if(!ctrlobj) return;
 if(isUndefined(click)) click = false;
 if(isUndefined(offset)) offset = 0;
 if(isUndefined(duration)) duration = 2;
 if(isUndefined(timeout)) timeout = 500;
 if(isUndefined(layer)) layer = 0;
 if(isUndefined(showid)) showid = ctrlid;
 var showobj = $(showid);
 var menuobj = $(showid + '_menu');
 if(!showobj|| !menuobj) return;
 if(isUndefined(maxh)) maxh = 400;
 if(isUndefined(drag)) drag = false;

 if(click && jsmenu['active'][layer] == menuobj) 
 {
  hideMenu(layer);
  return;
 } 
 else
 {
  hideMenu(layer);
 }

 var len = jsmenu['timer'].length;
 if(len > 0) 
 {
  for(var i=0; i<len; i++) 
  {
   if(jsmenu['timer'][i]) clearTimeout(jsmenu['timer'][i]);
  }
 }

 initCtrl(ctrlobj, click, duration, timeout, layer);
 ctrlobjclassName = ctrlobj.className;
 ctrlobj.className += ' hover';
 initMenu(ctrlid, menuobj, duration, timeout, layer, drag);

 menuobj.style.display = '';
 if(!is_opera) 
 {
  menuobj.style.clip = 'rect(auto, auto, auto, auto)';
 }

 setMenuPosition(showid, offset);

 if(is_ie && is_ie < 7) 
 {
  if(!jsmenu['iframe'][layer]) 
  {
   var iframe = document.createElement('iframe');
   iframe.style.display = 'none';
   iframe.style.position = 'absolute';
   iframe.style.filter = 'progid:DXImageTransform.Microsoft.Alpha(style=0,opacity=0)';
   $('append_parent') ? $('append_parent').appendChild(iframe) : menuobj.parentNode.appendChild(iframe);
   jsmenu['iframe'][layer] = iframe;
  }
  jsmenu['iframe'][layer].style.top = menuobj.style.top;
  jsmenu['iframe'][layer].style.left = menuobj.style.left;
  jsmenu['iframe'][layer].style.width = menuobj.w;
  jsmenu['iframe'][layer].style.height = menuobj.h;
  jsmenu['iframe'][layer].style.display = 'block';
 }

 if(maxh && menuobj.scrollHeight > maxh)
 {
  menuobj.style.height = maxh + 'px';
  if(is_opera) 
  {
   menuobj.style.overflow = 'auto';
  } 
  else 
  {
   menuobj.style.overflowY = 'auto';
  }
 }

 if(!duration) 
 {
  setTimeout('hideMenu(' + layer + ')', timeout);
 }

 jsmenu['active'][layer] = menuobj;
}

function setMenuPosition(showid, offset) 
{
 var showobj = $(showid);
 var menuobj = $(showid + '_menu');
 if(isUndefined(offset)) offset = 0;
 if(showobj) 
 {
  showobj.pos = fetchOffset(showobj);
  showobj.X = showobj.pos['left'];
  showobj.Y = showobj.pos['top'];
  showobj.w = showobj.offsetWidth;
  showobj.h = showobj.offsetHeight;
  menuobj.w = menuobj.offsetWidth;
  menuobj.h = menuobj.offsetHeight;
  if(offset < 3) 
  {
   menuobj.style.left = (showobj.X + menuobj.w > document.body.clientWidth) && (showobj.X + showobj.w - menuobj.w >= 0) ? showobj.X + showobj.w - menuobj.w + 'px' : showobj.X + 'px';
   menuobj.style.top = offset == 1 ? showobj.Y + 'px' : (offset == 2 || ((showobj.Y + showobj.h + menuobj.h > document.documentElement.scrollTop + document.documentElement.clientHeight) && (showobj.Y - menuobj.h >= 0)) ? (showobj.Y - menuobj.h) + 'px' : showobj.Y + showobj.h + 'px');
  } 
  else if(offset == 3) 
  {
   menuobj.style.left = (document.body.clientWidth - menuobj.clientWidth) / 2 + document.body.scrollLeft + 'px';
   menuobj.style.top = (document.body.clientHeight - menuobj.clientHeight) / 2 + document.body.scrollTop + 'px';
  }
  if(menuobj.style.clip && !is_opera) 
  {
   menuobj.style.clip = 'rect(auto, auto, auto, auto)';
  }
 }
}

function hideMenu(layer) 
{
 if(isUndefined(layer)) layer = 0;
 if(jsmenu['active'][layer]) 
 {
  try 
  {
   $(jsmenu['active'][layer].ctrlkey).className = ctrlobjclassName;
  } 
  catch(e) {}
  clearTimeout(jsmenu['timer'][jsmenu['active'][layer].ctrlkey]);
  jsmenu['active'][layer].style.display = 'none';
  if(is_ie && is_ie < 7 && jsmenu['iframe'][layer]) 
  {
   jsmenu['iframe'][layer].style.display = 'none';
  }
  jsmenu['active'][layer] = null;
 }
}

function fetchOffset(obj) 
{
 var left_offset = obj.offsetLeft;
 var top_offset = obj.offsetTop;
 while((obj = obj.offsetParent) != null) 
 {
  left_offset += obj.offsetLeft;
  top_offset += obj.offsetTop;
 }
 return { 'left' : left_offset, 'top' : top_offset };
}

function ebygum(eventobj)
{
 if(!eventobj || is_ie) 
 {
  window.event.cancelBubble = true;
  return window.event;
 } 
 else 
 {
  if(eventobj.target.type == 'submit')
  {
   eventobj.target.form.submit();
  }
  eventobj.stopPropagation();
  return eventobj;
 }
}