var imageFiles_1tv_1 = new Array();
imageFiles_1tv_1['0'] = new Array ('_images/1tv_.gif', '_images/1tv_Mouseover.gif');

function image_on_1tv_1 (position) {
   var doc = eval("document.image1tv_1" + position);
   doc.src = imageFiles_1tv_1[position][1];
}

function image_off_1tv_1 (position) {
   var doc = eval("document.image1tv_1" + position);
   doc.src = imageFiles_1tv_1[position][0];
}