nav = new Array;
nav_o = new Array;
nav_c = new Array;

// MouseOver Function

function navSwapOn(button) {
   if(document.images) {
      document.images['nav'+button].src = nav_o[button].src;
      //document.images['nav'+curmenu].src = nav[curmenu].src;
   }
}

// MouseOut Function

function navSwapOff(button) {
   if(document.images) {
      document.images['nav'+button].src = nav[button].src;
      //document.images['nav'+curmenu].src = nav_c[curmenu].src;
   }
}

for (k=0; k<=nmenu; k++) {
  nav[k] = new Image;
  nav[k].src = 'img/b_'+address[k]+'.gif';
  nav_o[k] = new Image;
  nav_o[k].src = 'img/b_'+address[k]+'_o.gif';
  nav_c[k] = new Image;
  nav_c[k].src = 'img/b_'+address[k]+'_c.gif';
  if (address[k] == curmenu) {
       document.write('<A HREF="'+address[k]+'.html"><IMG SRC="'+eval('nav_c['+k+'].src')+
                      '" BORDER="0" NAME="nav'+k+'" WIDTH=120 HEIGHT=30></A><BR>');
  } else {
       document.write('<A HREF="'+address[k]+'.html" ');
       document.write('onMouseOver="navSwapOn('+k+')" onMouseOut="navSwapOff('+k+')">');
       document.write('<IMG SRC="'+eval('nav['+k+'].src')+
                      '" BORDER="0" NAME="nav'+k+'" WIDTH=120 HEIGHT=30></A><BR>');
  }
}

document.write('<br><br><br><br>');