var imageFiles_198_31 = new Array();
imageFiles_198_31['0'] = new Array ('_images/198_.gif', '_images/198_Mouseover.gif');

function image_on_198_31 (position) {
   var doc = eval("document.image198_31" + position);
   doc.src = imageFiles_198_31[position][1];
}

function image_off_198_31 (position) {
   var doc = eval("document.image198_31" + position);
   doc.src = imageFiles_198_31[position][0];
}