var imageFiles_30_1 = new Array();
imageFiles_30_1['0'] = new Array ('_images/30_Home_.gif', '_images/30_Home_Mouseover.gif');

function image_on_30_1 (position) {
   var doc = eval("document.image30_1" + position);
   doc.src = imageFiles_30_1[position][1];
}

function image_off_30_1 (position) {
   var doc = eval("document.image30_1" + position);
   doc.src = imageFiles_30_1[position][0];
}