if (document.images) {
Inav_02_01 = new Image(82, 30);Inav_02_01.src = 'rc_nav/a_n.gif';
Inav_02_01o = new Image(82, 30);Inav_02_01o.src = 'rc_nav/a_n_over.gif';
Inav_02_02 = new Image(89, 30);Inav_02_02.src = 'rc_nav/b_n.gif';
Inav_02_02o = new Image(89, 30);Inav_02_02o.src = 'rc_nav/b_n_over.gif';
Inav_02_05 = new Image(88, 30);Inav_02_05.src = 'rc_nav/c_n.gif';
Inav_02_05o = new Image(88, 30);Inav_02_05o.src = 'rc_nav/c_n_over.gif';
Inav_02_07 = new Image(82, 30);Inav_02_07.src = 'rc_nav/d_n.gif';
Inav_02_07o = new Image(82, 30);Inav_02_07o.src = 'rc_nav/d_n_over.gif';
Inav_02_09 = new Image(112, 30);Inav_02_09.src = 'rc_nav/e_n.gif';
Inav_02_09o = new Image(112, 30);Inav_02_09o.src = 'rc_nav/e_n_over.gif';
Inav_02_11 = new Image(78, 30);Inav_02_11.src = 'rc_nav/f_n.gif';
Inav_02_11o = new Image(78, 30);Inav_02_11o.src = 'rc_nav/f_n_over.gif';
Inav_02_13 = new Image(69, 30);Inav_02_13.src = 'rc_nav/g_n.gif';
Inav_02_13o = new Image(69, 30);Inav_02_13o.src = 'rc_nav/g_n_over.gif';
Inav_04_04 = new Image(84, 30);Inav_04_04.src = 'rc_nav/h_n.gif';
Inav_04_04o = new Image(84, 30);Inav_04_04o.src = 'rc_nav/h_n_over.gif';
Inav_04_06 = new Image(90, 30);Inav_04_06.src = 'rc_nav/i_n.gif';
Inav_04_06o = new Image(90, 30);Inav_04_06o.src = 'rc_nav/i_n_over.gif';
Inav_04_08 = new Image(79, 30);Inav_04_08.src = 'rc_nav/j_n.gif';
Inav_04_08o = new Image(79, 30);Inav_04_08o.src = 'rc_nav/j_n_over.gif';
Inav_04_10 = new Image(112, 30);Inav_04_10.src = 'rc_nav/k_n.gif';
Inav_04_10o = new Image(112, 30);Inav_04_10o.src = 'rc_nav/k_n_over.gif';
}
function di(id,name){
  if (document.images) {document.images[id].src=eval(name+".src"); }
}

// function that displays status bar message

function dm(msgStr) {
  document.returnValue = false;
  if (document.images) { 
     window.status = msgStr;
     document.returnValue = true;
  }
}
var showMsg = navigator.userAgent != "Mozilla/4.0 (compatible; MSIE 4.0; Mac_PowerPC)";
function dmim(msgStr) {
  document.returnValue = false;
  if (showMsg) { 
    window.status = msgStr;
    document.returnValue = true;
  }
}