/*-------------------------------------------------------------------------------ROLLOVER BUTTON v1.0Netmedia KomunikaAug 08, 2000, IRL-------------------------------------------------------------------------------*/bName = navigator.appName;bVer = parseInt(navigator.appVersion);if ((bName == 'Netscape' && bVer >= 3) ||  (bName == 'Microsoft Internet Explorer' && bVer >=4)) br = 'n3';  else br = 'n2';if (br == 'n3') {  var img_name = new Array('going','previous','guestbook','aboutus','personel','home','abstracts','contactus','papers');    var img_prefix_on = 'imageseng/index_';  var img_suffix_on = '_on.gif';  var img_prefix_off = 'imageseng/index_';  var img_suffix_off = '.gif';  var img_count = img_name.length-1;  var img_on = new Array(img_count);  var img_off = new Array(img_count);  for (key in img_name) {    img_on[key] = new Image();    img_on[key].src = img_prefix_on + img_name[key] + img_suffix_on;    img_off[key] = new Image();    img_off[key].src = img_prefix_off + img_name[key] + img_suffix_off;  }}function img_chg_state(button_name, img_state) {  if (br == 'n3') {    for (i=0; i<=img_count ; i++) {      if (button_name == img_name[i]) {        if (img_state == 1) {          document[button_name].src = img_on[i].src;        } else {          document[button_name].src = img_off[i].src;        }        break;      }    }  }  return true;}