var revert = new Array();
var inames = new Array('psychological-assessment-services', 'intervention-therapy', 'client-billing', 'psychologists-seminars', 'psychology-careers', 'psychology-resources', 'ottawa-psychologists-contact', 'psychological-services', 'psychological-treatment', 'psychology-consultants');

// 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]+"-1.jpg";
  }
}

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];
}