var PreloadDone = false;

function SwapImage( ImgName, ImgSrc )
{
  if( document.images && ( PreloadDone == true ) )
  {
    document.images[ImgName].src = ImgSrc;
  }
}

function PreloadImages()
{
  if( document.images )
  {
    products_hover = new Image();
    products_hover.src = "/images/products_hover.jpg";

    order_hover = new Image();
    order_hover.src = "/images/order_hover.jpg";

    contact_hover = new Image();
    contact_hover.src = "/images/contact_hover.jpg";

    about_hover = new Image();
    about_hover.src = "/images/about_hover.jpg";
    
    PreloadDone = true;
  }
}

var myWin=null;
function openWin(aURL)
{
  if( myWin && !myWin.closed )
  {
     myWin.close();
  }

  if( !myWin || myWin.closed )
  {
    var optstring = 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,';
    optstring += 'width=480,height=360';
    myWin=window.open(aURL,'newwin',optstring);
 }
 else
 {
   myWin.location=aURL;
   myWin.focus();
 }
}