var imageFiles_bw_49 = new Array();
imageFiles_bw_49['0'] = new Array ('_images/bw_Contempory.gif', '_images/bw_ContemporyMouseover.gif');

function image_on_bw_49 (position) {
   var doc = eval("document.imagebw_49" + position);
   doc.src = imageFiles_bw_49[position][1];
}

function image_off_bw_49 (position) {
   var doc = eval("document.imagebw_49" + position);
   doc.src = imageFiles_bw_49[position][0];
}