function hoverNav() {
  if (document.getElementById('nav')) {
    var menuElems = document.getElementById("nav").getElementsByTagName("LI");
    for (var q=0; q<menuElems.length; q++) {
      menuElems[q].onmouseover=function() {
        this.className+=" hoverNav";
      }
      menuElems[q].onmouseout=function() {
        this.className=this.className.replace(new RegExp(" hoverNav\\b"), "");
      }
    }
  }
}
if (window.attachEvent) window.attachEvent("onload", hoverNav);

function backTrack() {
  var dl = ' &raquo; ';
  var path = '';
  var trail = document.location.href;
  var tracks = trail.split('/');
  for (var i = 3; i < (tracks.length - 1 ); i++) {
    link = trail.substring(0, trail.indexOf(tracks[i]) + tracks[i].length);
    path += '<a href="' + link + '">' + unescape(tracks[i]) + '</a>';
    if (i > 2) path += dl;
  }
  j = tracks.length - 1;
  link = trail.substring(0, trail.indexOf(tracks[j]) + tracks[j].length-1);
  path += '<a href="' + link + '">' + tracks[j] + '</a>';
  return path;
}

function display(elem,elemArray) {
  if ((elem)&&(document.getElementById(elem).style.display=="")) {
    document.getElementById(elem).style.display = "none";
    return 0;
  }
  for (i=0; i<elemArray.length; i++) {
    var thisElem = document.getElementById(elemArray[i]);
    thisElem.style.display = "none";
  }
  if (elem) document.getElementById(elem).style.display = "";
}

function shuffle(x) {
  var a, b, c;
  for (c = x.length - 1; c > 0; c--) {
    a = Math.floor((c + 1) * (Math.random() % 1));
    b = x[c];
    x[c] = x[a];
    x[a] = b;
  }
  return(x);
}
//var pix = [
//['images/x.jpg'],
//['images/x.jpg']
//]
//shuffle(pix);
//document.write(pix[0][0]);

function writeMail(usr, dom, ext) {
  document.write(usr+'@'+dom+'.'+ext);
}