document.captureEvents(Event.MOUSEMOVE);
           document.onMouseMove = MoveHandler;
var Xpos = 0;
var Ypos = 0;

function MoveHandler(e)
{
    this.Xpos = e.pageX;
    this.Ypos = e.pageY;
    return true;
}

function show_layer(xpos, ypos)
{
  eval("document.help.left=" + (xpos + 20));
  eval("document.help.top=" + (ypos - 60));
  document.help.visibility='visible';
}

function hide()
{
  document.help.visibility='hidden'
}