var mouseX = 0;
var mouseY = 0;

if (isMinNS4)
  document.captureEvents(Event.MOUSEMOVE);
document.onmousemove = getMousePosition;

function getMousePosition(e) {

  if (isMinNS4) {
    mouseX = e.pageX;
    mouseY = e.pageY;
  }
  if (isMinIE4) {
    mouseX = event.clientX + document.body.scrollLeft;
    mouseY = event.clientY + document.body.scrollTop;
  }
  return true;
}

var toolTipWait = 000;     // Delay before showing tool tip.
var toolTipShow = 90000;   // Time to keep tool tip active.
var toolTipxOff =    0;    // Horizontal distance from mouse.
var toolTipyOff =   20;    // Vertical distance from mouse.

function startToolTip(name, locFlag) {

  var tip = getLayer(name);

  // Clear out any pending timer.

  if (tip.timerID)
    clearTimeout(tip.timerID);

  // Set timer to show tool tip.

  tip.timerID = setTimeout('showToolTip("' + name + '", "' + locFlag + '")', toolTipWait);
}

function showToolTip(name, locFlag) {

  var tip = getLayer(name);
  
  // Clear out any pending timer.

  if (tip.timerID)
    clearTimeout(tip.timerID);

  // Position and show the tool tip.

  newW = getWidth(tip);
  newH = getHeight(tip);
  if (locFlag == 'O') {			// Put at Orgin (0,0)
    newX = 0;
    newY = 0;
  } else if (locFlag == 'C') {		// Try to center
    newX = (getWindowWidth() - newW) / 2;
    newY = (getWindowHeight() - newH) / 2 + getPageScrollY();
  } else {     				// Tooltip and put near mouse
    newX = mouseX + toolTipxOff;
    newY = mouseY + toolTipyOff;
  }
  if (newX + newW > getWindowWidth()) newX = getWindowWidth() - newW - 2;
  if (newX < 0) newX = 0;
  if (newY + newH - getPageScrollY() > getWindowHeight()) 
    newY = getWindowHeight() - newH + getPageScrollY() - 2;
  if (newY < getPageScrollY()) newY = getPageScrollY();
  moveLayerTo(tip, newX, newY);
  showLayer(tip);
        
  // Set timer to hide the tool tip after a delay.

  tip.timerID = setTimeout('hideToolTip("' + name + '")', toolTipShow);
}

function hideToolTip(name) {

  var tip = getLayer(name);
  
  // Clear out any pending timer.

  if (tip.timerID)
    clearTimeout(tip.timerID);

  hideLayer(tip);
}

function swapImg (name, img) {
  document.images[name].src = eval(img + ".src");

  return true;
}