var imageFiles_4poo_4 = new Array();
imageFiles_4poo_4['0'] = new Array ('_images/4poo_Contact_Lens_Exam_Training.gif', '_images/4poo_Contact_Lens_Exam_TrainingMouseover.gif');

function image_on_4poo_4 (position) {
   var doc = eval("document.image4poo_4" + position);
   doc.src = imageFiles_4poo_4[position][1];
}

function image_off_4poo_4 (position) {
   var doc = eval("document.image4poo_4" + position);
   doc.src = imageFiles_4poo_4[position][0];
}