function backToTop() {
  var x1 = x2 = x3 = 0;
  var y1 = y2 = y3 = 0;
  if (document.documentElement) {
      x1 = document.documentElement.scrollLeft || 0;
      y1 = document.documentElement.scrollTop || 0;
  }
  if (document.body) {
      x2 = document.body.scrollLeft || 0;
      y2 = document.body.scrollTop || 0;
  }
  x3 = window.scrollX || 0;
  y3 = window.scrollY || 0;
  var x = Math.max(x1, Math.max(x2, x3));
  var y = Math.max(y1, Math.max(y2, y3));
  window.scrollTo(Math.floor(x / 2), Math.floor(y / 2));
  if (x > 0 || y > 0) {
      window.setTimeout("backToTop()", 25);
  }
}


var elem = "TR";
window.onload = function() {
if(document.getElementsByTagName) {
var el = document.getElementsByTagName(elem);
for(var i=0; i<el.length; i++) {
if(el[i].childNodes[0].tagName != "TH"
&& el[i].parentNode.parentNode.className.indexOf("tbl") != -1) {
if(i%2 == 1) {
el[i].className = "on";
} else {
el[i].className = "off";
}
}
}
}
}