var imageFiles_it_1 = new Array();
imageFiles_it_1['0'] = new Array ('_images/it_MIRAGE.gif', '_images/it_MIRAGEMouseover.gif');

function image_on_it_1 (position) {
   var doc = eval("document.imageit_1" + position);
   doc.src = imageFiles_it_1[position][1];
}

function image_off_it_1 (position) {
   var doc = eval("document.imageit_1" + position);
   doc.src = imageFiles_it_1[position][0];
}