var imageFiles_dr_1 = new Array();
imageFiles_dr_1['0'] = new Array ('_images/dr_HOME.gif', '_images/dr_HOMEMouseover.gif');

function image_on_dr_1 (position) {
   var doc = eval("document.imagedr_1" + position);
   doc.src = imageFiles_dr_1[position][1];
}

function image_off_dr_1 (position) {
   var doc = eval("document.imagedr_1" + position);
   doc.src = imageFiles_dr_1[position][0];
}