/*NAV BAR JS BEGIN*/

// JavaScript functions to show and hide drop-down menus.
// In SimpleNavBar.html we call ShowMenuDiv each time the mouse goes over 
// either the menu title or the submenu itself, and call HideMenuDiv when the
// mouse goes out of the menu title or the submenu iteslf (onMouseOut).

function ShowItem (itemID) {
  var x = document.getElementById(itemID);
  if (x)
    x.style.visibility = "visible";
  return true;
}

function HideItem (itemID) { 
  var x = document.getElementById(itemID);
  if (x)
     x.style.visibility = "hidden";
  return true;
}

//    As noted in the SimpleNavBarStyles.css file, using x.style.visibility as
//    seen below seemed to have better cross browser support than using 
//    x.style.display="block" and x.style.display="none" to show and hide 
//    the menu.

/*NAV BAR JS END*/

/*RANDOM IMAGE JS BEGIN*/

<!-- This script and many more are available free online at -->
<!-- The JavaScript Source!! http://javascript.internet.com -->

<!-- Begin
// Set up the image files to be used.
var theImages = new Array() // do not change this
// To add more image files, continue with the
// pattern below, adding to the array.

theImages[0] = '/images/centergraphic/1.png'
theImages[1] = '/images/centergraphic/2.png'
theImages[2] = '/images/centergraphic/3.png'
theImages[3] = '/images/centergraphic/4.png'
theImages[4] = '/images/centergraphic/5.png'
theImages[5] = '/images/centergraphic/6.png'

// do not edit anything below this line

var j = 0
var p = theImages.length;
var preBuffer = new Array()
for (i = 0; i < p; i++){
   preBuffer[i] = new Image()
   preBuffer[i].src = theImages[i]
}
var whichImage = Math.round(Math.random()*(p-1));
function showImage(){
document.write('<img src="'+theImages[whichImage]+'">');
}

//  End -->

/*RANDOM IMAGE JS END*/