var imageFiles_d5_7 = new Array();
imageFiles_d5_7['0'] = new Array ('_images/d5_First.gif', '_images/d5_FirstMouseover.gif');
imageFiles_d5_7['1'] = new Array ('_images/d5_Second.gif', '_images/d5_SecondMouseover.gif');
imageFiles_d5_7['2'] = new Array ('_images/d5_Third.gif', '_images/d5_ThirdMouseover.gif');
imageFiles_d5_7['3'] = new Array ('_images/d5_Fourth.gif', '_images/d5_FourthMouseover.gif');
imageFiles_d5_7['4'] = new Array ('_images/d5_Fifth.gif', '_images/d5_FifthMouseover.gif');

function image_on_d5_7 (position) {
   var doc = eval("document.imaged5_7" + position);
   doc.src = imageFiles_d5_7[position][1];
}

function image_off_d5_7 (position) {
   var doc = eval("document.imaged5_7" + position);
   doc.src = imageFiles_d5_7[position][0];
}