var activeNav = "";


function changeImgOn(idimage) {
	document.getElementById("button" +idimage).src = eval("onbutton" + idimage).src;
}

function changeImgOff(idimage) {
	document.getElementById("button" +idimage).src = eval("offbutton" + idimage).src;
}


function changeSubNav(subnavid)
	{
			if (document.getElementById("subnav" + subnavid).style.visibility == "visible") {
				
				document.getElementById("subnav" + subnavid).style.visibility = "hidden";
		} else {
			document.getElementById("subnav" + subnavid).style.visibility = "visible";
			
		}
	}


function hideSubNav(subnavid)
	{
		for (var i =1; i <= 3; i++) {
			
			if (subnavid != i){
				document.getElementById("subnav" + i).style.visibility = "hidden";
			}
		}
		
	}


function showSubNav(subnavid)
	{
		document.getElementById("subnav" + subnavid).style.visibility = "visible";
		hideSubNav(subnavid);
	}
	
	
	function hideAllSubNav()
	{
		for (var i =1; i <= 3; i++) {
			document.getElementById("subnav" + i).style.visibility = "hidden";
		}

		if (activeNav != "") {
			document.getElementById("subnav" + activeNav).style.visibility = "visible";
		}
		
	}
	
	
	
<!-- Begin ExternalInterface -->
		var jsReady = false;
		function isReady() {
         return jsReady;
    }
    function pageInit() {
         jsReady = true;
     }
    function thisMovie(movieName) {
        if (navigator.appName.indexOf("Microsoft") != -1) {
            return window[movieName];
        } else {
            return document[movieName];
        }
    }
    function openMediaPlayer() {
        thisMovie("flashHeader").pauseAni();
    }
		function closeMediaPlayer() {
        thisMovie("flashHeader").resumeAni();
    }