function initPage()
{
  initNav({
    menuId: "nav",
    hoverClass: "hover",
    dropExistenceClass: "has-drop-down",
    sideClasses: true,
    cleverMode: true,
    flexibility: true,
    menuPaddings: 24,
    minWidth: 100
  });
}
function initNav(o)
{
  if (!o.menuId) o.menuId = "main-nav";
  if (!o.cleverMode) o.cleverMode = false;
  if (!o.flexibility) o.flexibility = false;
  if (!o.dropExistenceClass) o.dropExistenceClass = false;
  if (!o.hoverClass) o.hoverClass = "hover";
  if (!o.menuHardCodeClass) o.menuHardCodeClass = "menu-hard-code";
  if (!o.sideClasses) o.sideClasses = false;
  if (!o.center) o.center = false;
  if (!o.menuPaddings) o.menuPaddings = 0;
  if (!o.minWidth) o.minWidth = 0;
  if (!o.coeff) o.coeff = 1.7;
  var n = document.getElementById(o.menuId);
  if(n)
  {
    n.className = n.className.replace(o.menuHardCodeClass, "");
    var lfl = [];
    var li = n.getElementsByTagName("li");
    for (var i=0; i<li.length; i++)
    {
      li[i].className += (" " + o.hoverClass);
      var d = li[i].getElementsByTagName("div").item(0);
      if(d)
      {
        if(o.flexibility)
        {
          var a = d.getElementsByTagName("a");
          for (var j=0; j<a.length; j++)
          {
            var w = a[j].parentNode.parentNode.offsetWidth;
            if(w > 0)
            {
              if(typeof(o.minWidth) == "number" && w < o.minWidth)
                w = o.minWidth;
              else if(typeof(o.minWidth) == "string" && li[i].parentNode == n && w < li[i].offsetWidth)
                w = li[i].offsetWidth - 5;
              a[j].style.width = w - o.menuPaddings + "px";
            }
          }
          d.style.width = li[i].getElementsByTagName("div").item(1).clientWidth + "px";
        }
        var t = document.documentElement.clientWidth/o.coeff;
        if(li[i].parentNode != n && (!o.cleverMode || fPX(li[i]) < t))
        {
          d.style.right = "auto";
          d.style.left = li[i].parentNode.offsetWidth + "px";
          d.parentNode.className += " left-side";
        }  
        else if(li[i].parentNode != n && (o.cleverMode || fPX(li[i]) >= t))
        {
          d.style.left = "auto";
          d.style.right = li[i].parentNode.offsetWidth + "px";
          d.parentNode.className += " right-side";
        }
        else if(li[i].parentNode == n && o.cleverMode && fPX(li[i]) >= t)
        {
          li[i].className += " right-side";
        }
        if(li[i].parentNode == n && o.center)
          d.style.left = -li[i].getElementsByTagName("div").item(1).clientWidth/2 + li[i].clientWidth/2 + "px";
      }
      if(o.dropExistenceClass && li[i].getElementsByTagName("ul").length > 0)
      {
        li[i].className += (" " + o.dropExistenceClass);
        li[i].getElementsByTagName("a").item(0).className += (" " + o.dropExistenceClass + "-link");
        li[i].innerHTML += "<em class='pointer'></em>";
      }
      if(li[i].parentNode == n) lfl.push(li[i]);
    }
    if(o.sideClasses)
    {
      lfl[0].className += " first-child";
      lfl[0].getElementsByTagName("a").item(0).className += " first-child-link";
      lfl[lfl.length-1].className += " last-child";
      lfl[lfl.length-1].getElementsByTagName("a").item(0).className += " last-child-link";
    }
    for (var i=0; i<li.length; i++)
    {
      li[i].className = li[i].className.replace(o.hoverClass, "");
      li[i].onmouseover = function()
      {
        this.className += (" " + o.hoverClass);
      }
      li[i].onmouseout = function()
      {
        this.className = this.className.replace(o.hoverClass, "");
      }
    }
  }
  function fPX(a)
  {
    var b = 0;
    while (a.offsetParent) {b += a.offsetLeft; a = a.offsetParent;}
    return b;
  }
}
if (window.addEventListener)
  window.addEventListener("load", initPage, false);
else if (window.attachEvent)
  window.attachEvent("onload", initPage);