// ROLLOVER

function imgOn(imgName) {
  //if (document.images) {
  //  document[imgName].src = eval(imgName + "on.src");
  //}
  if(ob('img_'+imgName)) {
      ob('img_'+imgName).src='apppub/images_ped/nav_'+imgName+'_on.gif';
  }
}

function imgOff(imgName) {
  //if (document.images) {
  //  document[imgName].src = eval(imgName + "off.src");
  //}
  if(ob('img_'+imgName)) {
      ob('img_'+imgName).src='apppub/images_ped/nav_'+imgName+'_off.gif';
  }
}