var bNetscape4plus = (navigator.appName == "Netscape" && navigator.appVersion.substring(0,1) >= "4");
var bExplorer4plus = (navigator.appName == "Microsoft Internet Explorer" && navigator.appVersion.substring(0,1) >= "4");

function CheckUIElements() {
  var yMenuFrom, yMenuTo, yButtonFrom, yButtonTo, yOffset, timeoutNextCheck;

  if ( bNetscape4plus ) {
    yMenuFrom = document["divMenu"].top;
    yMenuTo = top.pageYOffset + 50;
  }
  else if ( bExplorer4plus ) {
    yMenuFrom = parseInt (divMenu.style.top, 10);
    yMenuTo = document.body.scrollTop + document.body.clientHeight - 180;
  }

  timeoutNextCheck = 500;

  if ( Math.abs (yButtonFrom - (yMenuTo + 152)) < 6 && yButtonTo < yButtonFrom ) {
    setTimeout ("CheckUIElements()", timeoutNextCheck);
    return;
  }

  if ( yButtonFrom != yButtonTo ) {
    yOffset = Math.ceil( Math.abs( yButtonTo - yButtonFrom ) / 10 );
    if ( yButtonTo < yButtonFrom ) yOffset = -yOffset;

    if ( bNetscape4plus ) document["divLinkButton"].top += yOffset;
    else if ( bExplorer4plus ) divLinkButton.style.top = parseInt (divLinkButton.style.top, 10) + yOffset;

    timeoutNextCheck = 10;
  }
  if ( yMenuFrom != yMenuTo ) {
    yOffset = Math.ceil( Math.abs( yMenuTo - yMenuFrom ) / 20 );
    if ( yMenuTo < yMenuFrom ) yOffset = -yOffset;

    if ( bNetscape4plus ) document["divMenu"].top += yOffset;
    else if ( bExplorer4plus ) divMenu.style.top = parseInt (divMenu.style.top, 10) + yOffset;

    timeoutNextCheck = 10;
  }
  setTimeout ("CheckUIElements()", timeoutNextCheck);
}



function OnLoad() {
  var y;

  if ( bNetscape4plus ) {
    document["divMenu"].top = top.pageYOffset + 50;
    document["divMenu"].visibility = "visible";
  }
  else if ( bExplorer4plus ) {
    divMenu.style.top = document.body.scrollTop + document.body.clientHeight - 180 ;
    divMenu.style.visibility = "visible";
  }
  CheckUIElements();
  return true;
}