var imageFiles_30q_1 = new Array();
imageFiles_30q_1['0'] = new Array ('_images/30q_OIS.gif', '_images/30q_OISMouseover.gif');

function image_on_30q_1 (position) {
   var doc = eval("document.image30q_1" + position);
   doc.src = imageFiles_30q_1[position][1];
}

function image_off_30q_1 (position) {
   var doc = eval("document.image30q_1" + position);
   doc.src = imageFiles_30q_1[position][0];
}