function NewWindow(mypage, myname, w, h, scroll) {
var winl = (screen.width - w) / 2;
var wint = (screen.height - h) / 2;
winprops = 'height='+h+',width='+w+',top='+wint+',left='+winl+',scrollbars='+scroll+',resizable'
win = window.open(mypage, myname, winprops)
if (parseInt(navigator.appVersion) >= 4) { win.window.focus(); }
}
// preload rollovers

var website = new String();
website = 'http://www.trilogylibraryservices.com/';
 
if (document.images)
{
  var imgArrow = new Image();
  imgArrow.src = 'http://www.trilogylibraryservices.com/images/lnav_arrow_white.gif';

  var imgHome = new Image();
  imgHome.src = 'http://www.trilogylibraryservices.com/images/logo_home.jpg';

  var imgClearDot = new Image();
  imgClearDot.src = 'http://www.trilogylibraryservices.com/images/dot_clear.gif';
}

function showArrow(strImgName)
{
  if (document.images)
    document[strImgName].src = imgArrow.src;
}

function showClearDot(strImgName)
{
  if (document.images)
    document[strImgName].src = imgClearDot.src;
}

function showHome()
{
  if (document.images)
    document['home'].src = imgHome.src;
}

function revertHome()
{
  if (document.images)
    document['home'].src = 'http://www.trilogylibraryservices.com/images/logo.jpg';
}