if (document.images) {
  image11on = new Image();
  image11on.src = "navclinic_over.gif";

  image11off = new Image();
  image11off.src = "navclinic.gif";

  image12on = new Image();
  image12on.src = "navcustomer_over.gif";

  image12off = new Image();
  image12off.src = "navcustomer.gif";

  image13on = new Image();
  image13on.src = "navnurse_over.gif";

  image13off = new Image();
  image13off.src = "navnurse.gif";


}

function turnOn(imageName) {
  if (document.images) {
    document[imageName].src = eval(imageName + "on.src");
  }
}

function turnOff(imageName) {
  if (document.images) {
    document[imageName].src = eval(imageName + "off.src");
  }
}

//Script created by Ronny Drappier, http://sipreal.com
//Visit http://javascriptkit.com for this script

    today=new Date();
    y0=today.getFullYear();

  // end hiding