function NewWin(w,h){
	x=screen.width;
	y=screen.height;
	h+=0;
        x_crd = ((x/2)-(w/2));
        y_crd = ((y/2)-(h/2));
        strFeatures="scrollbars=no,resizable=no,width="+w+",height="+h+",left=" + x_crd +",top=" + y_crd
	MyWin=window.open("", "MyWin", strFeatures );
     }
	 
function OpenNewWindow(url, w,h){
 x=screen.width;
 y=screen.height;
 h+=0;
 x_crd = ((x/2)-(w/2));
 y_crd = ((y/2)-(h/2));
 strFeatures="scrollbars=no,resizable=no,width="+w+",height="+h+",left=" + x_crd +",top=" + y_crd
 MyWin=window.open(url, "MyWin", strFeatures );
}

function ic(imgName, imgSrc) 
{
  if (document.images)
  {
    if (imgSrc != "none")
    {
      document.images[imgName].src = imgSrc;
    }
  }
}

function simplePreload()
{ 
  var args = simplePreload.arguments;
  document.imageArray = new Array(args.length);
  for(var i=0; i<args.length; i++)
  {
    document.imageArray[i] = new Image;
    document.imageArray[i].src = args[i];
  }
}

simplePreload('menu_1a.jpg','menu_2a.jpg','menu_3a.jpg','menu_4a.jpg');