var oldID = null;
var canHover = false;
if (document.images) canHover = true;

function element(objectID, parentID)
	{
	if (document.getElementById) return document.getElementById(objectID);
	else if (document.all) return document.all[objectID];
	else if (document.layers)
		{
		if (parentID) return document.layers[parentID].document.layers[objectID];
		else return document.layers[objectID];
		}
	else return null;
	}

function Preload(imgName)
  {
  a = new Image();
  a.src = "images/" + imgName;
  }

if(canHover)
  {
  Preload("topleftlogo-h.gif");
  Preload("toprightlogo-h.gif");
  Preload("sidelinkbg-h.gif");
  Preload("sublinkbg-h.gif");
  Preload("order-h.gif");
  Preload("starlinks/m-company-h.gif");
  Preload("starlinks/m-opportunity-h.gif");
  Preload("starlinks/m-products-h.gif");
  Preload("starlinks/m-technology-h.gif");
  Preload("starlinks/m-download-h.gif");
  Preload("starlinks/m-order-h.gif");
  Preload("starlinks/m-support-h.gif");
  Preload("logos/FederationX-a.gif");
  Preload("logos/ExForce-h.gif");
  Preload("logos/FedGrid-h.gif");
  Preload("logos/GameNebula-h.gif");
  Preload("logos/GameXML-h.gif");
  Preload("logos/MagnetarOrg-h.gif");
  Preload("logos/FlashFed-h.gif");
  }

function DoFlyover(imgID, imgName)
	{
	DoHover(imgID, imgName);
	ShowFlyover('div' + imgID);
	}

function UndoFlyover(imgID, imgName)
	{
	UnHover(imgID, imgName);
	}

function DoHover(imgID, imgName)
  {
  if (canHover) document[imgID].src = "images/" + imgName + "-h.gif";
  }

function UnHover(imgID, imgName)
  {
  if (canHover) document[imgID].src = "images/" + imgName + "-n.gif";
  }

function ShowFlyover(divID)
	{
	if (oldID != null) HideFlyover();
	var domDIV = element(divID, 'divFlyover');
	if (domDIV == null) return;
	if (oldID != null) HideFlyover;
	oldID = divID;
	if (document.layers) domDIV.visibility = "show"
	else domDIV.style.visibility = "visible";
	}

function HideFlyover()
	{
	if (oldID == null) return;
	var domDIV = element(oldID, 'divFlyover');
	if (domDIV == null) return;
	if (document.layers) domDIV.visibility = "hide"
	else domDIV.style.visibility = "hidden";
	oldID = null;
	}