  var isns4up = (document.layers) ? 1 : 0;
  var isie4up = (document.all) ? 1 : 0;
  var dyy, xp0,xp1, yp0,yp1;
  var amm, stxx, styy; 
  var d_width = 800;

  if (isns4up) d_width = self.innerWidth-150;
  else if (isie4up) d_width = document.body.clientWidth-150;

  dyy = 0; 
  xp1 = Math.random()*(d_width); 
  yp1 = 50
  xp0 = Math.random()*(d_width); 
  yp0 = 50
  amm = Math.random()*20;
  stxx = 0.02 + Math.random()/10;
  styy = 1.7 + Math.random();
  
    if (isns4up) { 
        document.write("<layer name=\"a0\" left=\"15\" top=\"15\" visibility=\"show\"><img src='data/p26.gif' border=\"0\"></layer>");
        document.write("<layer name=\"a1\" left=\"15\" top=\"15\" visibility=\"show\"><img src='data/123.gif' border=\"0\"></layer>");
    } else if (isie4up) {
        document.write("<div id=\"a0\" style=\"POSITION: absolute; Z-INDEX: 0; VISIBILITY: visible; TOP: 15px; LEFT: 15px;\"><img src='data/p26.gif' border=\"0\"></div>");
        document.write("<div id=\"a1\" style=\"POSITION: absolute; Z-INDEX: 1; VISIBILITY: visible; TOP: 15px; LEFT: 15px;\"><img src='data/123.gif' border=\"0\"></div>");
    }
  
  function aNS() {
    if (xp0<50) {xp0=d_width;yp0=50;}
    if (xp1>d_width) {xp1=50;yp1=50;}
    styy = 0.02 + Math.random()/10;
    stxx = 1.7 + Math.random();
    xp0 -= stxx;
    xp1 += stxx;
    dyy += styy;
    document.layers["a0"].top = yp0+ amm*Math.sin(dyy);
    document.layers["a0"].left = xp0 ;
    document.layers["a1"].top = yp1+ amm*Math.sin(dyy);
    document.layers["a1"].left = xp1 ;    
    setTimeout("aNS()", 20);
  }

  function aIE() {
    if (xp0<50) {xp0=d_width;yp0=50;}
    if (xp1>d_width) {xp1=50;yp1=50;}
    styy = 0.02 + Math.random()/10;
    stxx = 1.7 + Math.random();
    xp0 -= stxx;
    xp1 += stxx;
    dyy += styy;
    document.all["a0"].style.pixelTop = yp0+ amm*Math.sin(dyy);
    document.all["a0"].style.pixelLeft = xp0 ;
    document.all["a1"].style.pixelTop = yp1+ amm*Math.sin(dyy);
    document.all["a1"].style.pixelLeft = xp1 ;
    setTimeout("aIE()", 20);
  }

  if (isns4up) {
    aNS();
  } else if (isie4up) {
    aIE();
  }