function fade(e,f) {
  if (f==-1) {
    for (i=0;i<num;i++)
      if (browser=="Microsoft Internet Explorer")
        document.getElementsByName("nav-img")[i].style.filter = 'alpha(opacity=' + 100 + ')'
      else
        document.getElementsByName("nav-img")[i].style.opacity=1;
  }
  if (f!=0) {c=f; n=0;}
  d=e;
  o_1 = (c>0)? n/nl : (nl-n)/nl;
  o_1 = (o_1>1)? 1: o_1; o_1 = (o_1<0)? 0: o_1;
  oIE=o_1*100;
  if (browser=="Microsoft Internet Explorer")
    e.style.filter = 'alpha(opacity=' + oIE + ')'
  else
    e.style.opacity=o_1;
  n++;
  if (n<=nl) t = setTimeout("fade(d,0)",ti);
}

function op(e,o) {
  
}

function stop_fade()
{
  clearTimeout(t);
}

/*
e = document.getElementsByName(a);
for (i=0;i<5;i++) { if (e[i]) {
  
}}
*/