// Swap the left hand sides of the nav rollover
var revert = new Array();
// Preload
if (document.images) {
	flipped = new Image();
	flipped.src = "images/elements/grey_but_left.jpg";
}

function over(num) {
  if(document.images) {
    revert[num] = document.images['lhs'+num].src;
    document.images['lhs'+num].src = flipped.src;
  }
}
function out(num) {
  if(document.images) document.images['lhs'+num].src = revert[num];
}