var currSection = "navAbout";
var highlitSection = "none";

function HighlightCurrentSection( )
{
  preloadImages();
  changeImages(currSection, '../images/' + currSection + "_o.gif");
  highlitSection = currSection;
  return true;
}

function newImage(arg) {
  if (document.images) {
    rslt = new Image();
    rslt.src = arg;
    return rslt;
  }
}

function changeImages() {
  if (document.images && (preloadFlag == true)) {
    for (var i=0; i<changeImages.arguments.length; i+=2) {
      if (changeImages.arguments[i] != highlitSection ) { 
        document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
      }
    }
  }
}

var preloadFlag = false;
function preloadImages()
{
  if (document.images) 
  {
    navAbout_o			= newImage("../images/navAbout_o.gif");
    navBoard_o			= newImage("../images/navBoard_o.gif");
    navMembers_o		= newImage("../images/navMembers_o.gif");
    navProperty_o		= newImage("../images/navProperty_o.gif");
    navEvents_o			= newImage("../images/navEvents_o.gif");
    navNews_o			= newImage("../images/navNews_o.gif");
    navReports_o		= newImage("../images/navReports_o.gif");
    navSupport_o		= newImage("../images/navSupport_o.gif");
    navContact_o		= newImage("../images/navContact_o.gif");
    navLinks_o			= newImage("../images/navLinks_o.gif");
    navTour_o			= newImage("../images/navTour_o.gif");
    preloadFlag = true;
  }
}