// cssjsmenu.js
// This is a modified version of cssjsmenu.js, changed by jstephens on Mon May 14 16:30:56 MDT 2007


function ndeSetStyleSheet(newtitle)
{
   ndeCreateCookie('nde-style', newtitle, 365, false);
   if (ndeReadCookie('nde-style') == newtitle)
   {
      window.location.reload(true);
   }
   else
   {
      alert('You must enable Cookies in order for theme selection to work');
   }
}

function ndeSetTextSize(chgsize,rs)
{
   if (!document.documentElement || !document.body)
   {
      return;
   }

   var newSize;
   var startSize = parseInt(ndeGetDocTextSize());

   if (!startSize)
   {
      startSize = 12;
   }

   switch (chgsize)
   {
      case 'incr':
      newSize = startSize + 2;
      break;

      case 'decr':
      newSize = startSize - 2;
      break;

      case 'reset':
      if (rs)
      {
         newSize = rs;
      }
      else
      {
         newSize = 12;
      }
      break;

      default:
      newSize = parseInt(ndeReadCookie('nde-textsize', true));
      if (!newSize)
      {
         newSize = startSize;
      }
      break;

   }

   if (newSize < 10)
   {
      newSize = 10;
   }

   newSize += 'px';

   document.documentElement.style.fontSize = newSize;
   document.body.style.fontSize = newSize;

   ndeCreateCookie('nde-textsize', newSize, 365, true);
}

function ndeGetDocTextSize()
{
   if (!document.body)
   {
      return 0;
   }

   var size = 0;
   var body = document.body;

   if (body.style && body.style.fontSize)
   {
      size = body.style.fontSize;
   }
   else if (typeof(getComputedStyle) != 'undefined')
   {
      size = getComputedStyle(body,'').getPropertyValue('font-size');
   }
   else if (body.currentStyle)
   {
      size = body.currentStyle.fontSize;
   }
   return size;
}

function ndeCreateCookie(name,value,days,useLang)
{
   var langString = useLang ? ndeGetLang() : '';

   var cookie = name + langString + '=' + value + ';';

   if (days)
   {
      var date = new Date();
      var ndeMilliSecondsInDay = 86400000; // 24*60*60*1000
      date.setTime(date.getTime()+(days*ndeMilliSecondsInDay));
      cookie += ' expires=' + date.toGMTString() + ';';
   }
   cookie += ' path=/';

   document.cookie = cookie;
}

function ndeReadCookie(name, useLang)
{
   var langString = useLang ? ndeGetLang() : '';

   var nameEQ = name + langString + '=';
   var ca = document.cookie.split(';');

   for(var i = 0; i < ca.length; i++)
   {
      var c = ca[i];
      while (c.charAt(0) == ' ')
      {
         c = c.substring(1, c.length);
      }

      if (c.indexOf(nameEQ) == 0)
      {
         return c.substring(nameEQ.length,c.length);
      }
   }
   return null;
}

function ndeSetTheme()
{
   ndeSetTextSize();
   return true;
}

function ndeGetLang()
{
   var langString = '';

   if (document.documentElement){
      langString = document.documentElement.lang;
      if (langString != ''){
         langString = '-' + langString;
      }
   }
   return langString;
}

function checkForUpgrade()
{
   var rvValue = -1;

   if (navigator.product == 'Gecko')
   {
      rvValue = 0;
      var ua = navigator.userAgent.toLowerCase();
      var rvStart = ua.indexOf('rv:');
      var rvEnd = ua.indexOf(')', rvStart);
      var rv = ua.substring(rvStart+3, rvEnd);
      var rvParts = rv.split('.');
      var exp = 1;

      for (var i = 0; i < rvParts.length; i++)
      {
         var val = parseInt(rvParts[i]);
         rvValue += val / exp;
         exp *= 100;
      }
   }

   if (!document.getElementById || ( rvValue >= 0 && rvValue < 1.0))
   {
      var updateMessageShown = ndeReadCookie('upgrade');
      if (!updateMessageShown)
      {
         ndeCreateCookie('upgrade','1', 90);
         // check if cookie written. If not, don't redirect
         if (ndeReadCookie('upgrade'))
         {
            document.location = '/upgrade.html';
         }
      }
   }
}

function printAlert()
{
   alert('Thanks to the use of a print-media stylesheet, this page is already printer-friendly! Just print the article from a CSS-capable browser to get the print styles on paper.');
}

function init()
{
   cssjsmenu('navbar');
   cssjsmenu('nde-config');
   if (document.getElementById)
   {
      var kill = document.getElementById('hoverJS');
      kill.disabled = true;
   }
}

// csjsmenu.js

function elementContains(elmOuter, elmInner)
{
   while (elmInner && elmInner != elmOuter)
   {
      elmInner = elmInner.parentNode;
   }
   if (elmInner == elmOuter)
   {
      return true;
   }
   return false;
}

function getPageXY(elm)
{
   var point = { x: 0, y: 0 };
   while (elm)
   {
      point.x += elm.offsetLeft;
      point.y += elm.offsetTop;
      elm = elm.offsetParent;
   }
   return point;
}

function setPageXY(elm, x, y)
{
   var parentXY = {x: 0, y: 0 };

   if (elm.offsetParent)
   {
      parentXY = getPageXY(elm.offsetParent);
   }

   elm.style.left = (x - parentXY.x) + 'px';
   elm.style.top = (y - parentXY.y) + 'px';
}



function init_category_tabs_menu()
{
   cssjsmenu('navCatTabsMenu');
}


function hide_dropdowns(what){
   if (window.navigator.userAgent.indexOf('MSIE 6.0') != -1)
   if (what=="in") {
      var anchors = document.getElementsByTagName("select");
      for (var i=0; i<anchors.length; i++) {
         var anchor = anchors[i];
         if (anchor.getAttribute("rel")=="dropdown") {
            anchor.style.position="relative";
            anchor.style.top="0px";
            anchor.style.left="-2000px";
         }
      }
   } else {
      var anchors = document.getElementsByTagName("select");
      for (var i=0; i<anchors.length; i++) {
         var anchor = anchors[i];
         if (anchor.getAttribute("rel")=="dropdown") {
            anchor.style.position="relative";
            anchor.style.top="0px";
            anchor.style.left="0px";
         }
      }
   }
}



function cssjsmenu(menuid)
{
   var i;
   var j;
   var node;
   var child;
   var parent;

   // if the browser doesn't even support
   // document.getElementById, give up now.
   if (!document.getElementById)
   {
      return true;
   }

   // check for downlevel browsers
   // Opera 6, IE 5/Mac are not supported

   var version;
   var offset;

   offset = navigator.userAgent.indexOf('Opera');
   if (offset != -1)
   {
      version = parseInt('0' + navigator.userAgent.substr(offset + 6), 10);
      if (version < 7)
      {
         return true;
      }
   }

   offset = navigator.userAgent.indexOf('MSIE');
   if (offset != -1)
   {
      if (navigator.userAgent.indexOf('Mac') != -1)
      {
         return true;
      }
   }

   var menudiv = document.getElementById(menuid);

   // ul
   var ul = new Array();

   for (i = 0; i < menudiv.childNodes.length; i++)
   {
      node = menudiv.childNodes[i];
      if (node.nodeName.toUpperCase() == 'UL')
      {
         ul[ul.length] = node;
      }
   }

   // ul > li
   var ul_gt_li = new Array();

   for (i = 0; i < ul.length; i++)
   {
      node = ul[i];
      for (j = 0; j < node.childNodes.length; j++)
      {
         child = node.childNodes[j];
         if (child.nodeName.toUpperCase() == 'LI')
         {
            ul_gt_li[ul_gt_li.length] = child;
            child.style.display = 'inline';
            child.style.listStyle = 'none';
            child.style.position = 'static';
         }
      }
   }

   // ul > li > ul
   var ul_gt_li_gt_ul = new Array();

   for (i = 0; i < ul_gt_li.length; i++)
   {
      node = ul_gt_li[i];
      for (j = 0; j < node.childNodes.length; j++)
      {
         child = node.childNodes[j];
         if (child.nodeName.toUpperCase() == 'UL')
         {
            ul_gt_li_gt_ul[ul_gt_li_gt_ul.length] = child;
            child.style.position = 'absolute';
            child.style.left = '-13em';
            child.style.visibility = 'hidden';

            // attach hover to parent li
            parent = child.parentNode;
            parent.onmouseover = function (e)
            {
               var i;
               var child;
               var point;

               // stop the pure css hover effect
               this.style.paddingBottom = '0';

               for (i = 0; i < this.childNodes.length; i++)
               {
                  child = this.childNodes[i];
                  if (child.nodeName.toUpperCase() == 'UL')
                  {
                     point = getPageXY(this);
                     setPageXY(child, point.x, point.y + this.offsetHeight);
                     child.style.visibility = 'visible';
                  }
               }
               return false;
            };
            parent.onmouseout = function (e)
            {
               var relatedTarget = null;
               if (e)
               {
                  relatedTarget = e.relatedTarget;
                  // work around Gecko Linux only bug where related target is null
                  // when clicking on menu links or when right clicking and moving
                  // into a context menu.
                  if (navigator.product == 'Gecko' && navigator.platform.indexOf('Linux') != -1 && !relatedTarget)
                  {
                     relatedTarget = e.originalTarget;
                  }
               }
               else if (window.event)
               {
                  relatedTarget = window.event.toElement;
               }

               if (elementContains(this, relatedTarget))
               {
                  return false;
               }

               var i;
               var child;
               for (i = 0; i < this.childNodes.length; i++)
               {
                  child = this.childNodes[i];
                  if (child.nodeName.toUpperCase() == 'UL')
                  {
                     child.style.visibility = 'hidden';
                  }
               }
               return false;
            };
         }
      }
   }
   return true;
}