var imageFiles_e4_13 = new Array();
imageFiles_e4_13['0'] = new Array ('_images/e4_HOME.gif', '_images/e4_HOMEMouseover.gif');

function image_on_e4_13 (position) {
   var doc = eval("document.imagee4_13" + position);
   doc.src = imageFiles_e4_13[position][1];
}

function image_off_e4_13 (position) {
   var doc = eval("document.imagee4_13" + position);
   doc.src = imageFiles_e4_13[position][0];
}