var dom = document.getElementById?1:0;
var ns4 = document.layers?1:0;
present = "first";



function loadAgain() {

if (ns4)
self.location.reload();
}


function init() {

 if (dom) {
 layer = document.getElementById("content").getElementsByTagName("div");
 layer['first'].style.visibility = "visible";
 layer['first'].style.top = 0;
 }
 else if(ns4) {
 layer = "document['content'].document";
 eval(layer + "['first']" + '.visibility = "visible"');
 eval(layer + "['first']" + '.top = -15');
 }
}



function scroll(direction, speed) {

 if (dom) {
 var layertop = parseInt(layer[present].style.top);
 var scrollheight = (document.getElementById('content').offsetHeight - layer[present].offsetHeight);
 }
 else if (ns4) {
 var layertop = parseInt(document['content'].document[present].top);
 var scrollheight = (document['content'].clip.height - document['content'].document[present].clip.height);
 }

 if (direction == "down" && layertop - 10 > scrollheight) {

  if (dom)
  layer[present].style.top = (layertop - speed) + "px";

  else if(ns4)
  document['content'].document[present].top = (layertop - speed);
 }

 else if (direction == "up" && layertop < -10 ) {

  if(dom)
  layer[present].style.top = (layertop + speed) + "px";

  else if(ns4)
  document['content'].document[present].top = (layertop + speed);
 }

timer = setTimeout("scroll('" + direction + "', " + speed + ")", 5);
}


function stop() {

clearTimeout(timer);
}