var revert = new Array();
// Preload
if (document.images) {
	var flipped = new Array();
	for(i=0; i< inames.length; i++) {
		flipped[i] = new Image();
		flipped[i].src = "images/"+inames[i]+"2."+inames_ext[i];
	}
}
//rollover state
function over(num) {
  if(document.images) {
    revert[num] = document.images[inames[num]].src;
    document.images[inames[num]].src = flipped[num].src;
  }
}
//rollout state
function out(num) {
  if(document.images) document.images[inames[num]].src = revert[num];
}