function changeNavState(img)
{
    var homeImg = document.getElementById('home');
    homeImg.src = "images/home.jpg";
    var widgetsImg = document.getElementById('widgets');
    widgetsImg.src = "images/widgets.jpg";
    var gamesImg = document.getElementById('games');
    gamesImg.src = "images/games.jpg";
    var newsImg = document.getElementById('news');
    newsImg.src = "images/news.jpg";
    var helpImg = document.getElementById('support');
    helpImg.src = "images/support.jpg";
    
    var changeImg = document.getElementById(img);
    changeImg.src = "images/"+ img +"_on.jpg";
	
	//document.getElementById('main').focus();
}