if(document.images) 
   {
     pdhwtwpointerover = new Array(17);
     pdhwtwpointerout  = new Array(17);
     for(var n=1;n<=17;n++) 
     {
      pdhwtwpointerover[n] = new Image(125,125);
      pdhwtwpointerout[n]  = new Image(125,125);
     }
     pdhwtwpointerover[1].src  = "buttonimages/pdhwtwbutton1991l.gif";
     pdhwtwpointerout[1].src   = "buttonimages/pdhwtwbutton1991d.gif";
     pdhwtwpointerover[2].src  = "buttonimages/pdhwtwbutton1992l.gif";
     pdhwtwpointerout[2].src   = "buttonimages/pdhwtwbutton1992d.gif";
     pdhwtwpointerover[3].src  = "buttonimages/pdhwtwbutton1993l.gif";
     pdhwtwpointerout[3].src   = "buttonimages/pdhwtwbutton1993d.gif";
     pdhwtwpointerover[4].src  = "buttonimages/pdhwtwbutton1994l.gif";
     pdhwtwpointerout[4].src   = "buttonimages/pdhwtwbutton1994d.gif";
     pdhwtwpointerover[5].src  = "buttonimages/pdhwtwbutton1995l.gif";
     pdhwtwpointerout[5].src   = "buttonimages/pdhwtwbutton1995d.gif";
     pdhwtwpointerover[6].src  = "buttonimages/pdhwtwbutton1996l.gif";
     pdhwtwpointerout[6].src   = "buttonimages/pdhwtwbutton1996d.gif";
     pdhwtwpointerover[7].src  = "buttonimages/pdhwtwbutton1997l.gif";
     pdhwtwpointerout[7].src   = "buttonimages/pdhwtwbutton1997d.gif";
     pdhwtwpointerover[8].src  = "buttonimages/pdhwtwbutton1998l.gif";
     pdhwtwpointerout[8].src   = "buttonimages/pdhwtwbutton1998d.gif";
     pdhwtwpointerover[9].src  = "buttonimages/pdhwtwbutton1999l.gif";
     pdhwtwpointerout[9].src   = "buttonimages/pdhwtwbutton1999d.gif";
     pdhwtwpointerover[10].src = "buttonimages/pdhwtwbutton2000l.gif";
     pdhwtwpointerout[10].src  = "buttonimages/pdhwtwbutton2000d.gif";
     pdhwtwpointerover[11].src = "buttonimages/pdhwtwbutton2001l.gif";
     pdhwtwpointerout[11].src  = "buttonimages/pdhwtwbutton2001d.gif";
     pdhwtwpointerover[12].src = "buttonimages/pdhwtwbutton2002l.gif";
     pdhwtwpointerout[12].src  = "buttonimages/pdhwtwbutton2002d.gif";
     pdhwtwpointerover[13].src = "buttonimages/pdhwtwbutton2003l.gif";
     pdhwtwpointerout[13].src  = "buttonimages/pdhwtwbutton2003d.gif";
     pdhwtwpointerover[14].src = "buttonimages/pdhwtwbutton2004l.gif";
     pdhwtwpointerout[14].src  = "buttonimages/pdhwtwbutton2004d.gif";
     pdhwtwpointerover[15].src = "buttonimages/pdhwtwbutton2005l.gif";
     pdhwtwpointerout[15].src  = "buttonimages/pdhwtwbutton2005d.gif";
     pdhwtwpointerover[16].src = "buttonimages/pdhwtwbutton2006l.gif";
     pdhwtwpointerout[16].src  = "buttonimages/pdhwtwbutton2006d.gif";
     pdhwtwpointerover[17].src = "buttonimages/moretocomegreenl.gif";
     pdhwtwpointerout[17].src  = "buttonimages/moretocomegreend.gif";
   }
  function pdhwtwLite(i) 
  {
   if(document.images) document.images["pdhwtwndx"+i].src=pdhwtwpointerover[i].src;
  }
  function pdhwtwDark(i) 
  {
   if(document.images) document.images["pdhwtwndx"+i].src=pdhwtwpointerout[i].src;
  }