var revert = new Array();
var inames = new Array('neuigkeiten','grundsaetze','mitglieder','diplomatie','bibliothek','galerie','aussehen','charakter', 'gesellschaft','sprache','foren','links');

if (document.images) {
  var flipped = new Array();

  for(i = 0; i < inames.length; i++) {
    flipped[i] = new Image();
    flipped[i].src = "images/nav/" + inames[i] + "_h.gif";
  }
}

function over(num) {
  if(document.images) {
    revert[num] = document.images[inames[num]].src;
    document.images[inames[num]].src = flipped[num].src;
  }
}

function out(num) {
  if(document.images) {
    document.images[inames[num]].src = revert[num];
  }
}