var currentMenu = "";
var timer=0;
var maxOpaque=0;
var minOpaque=0;

function liover(item) {
	elt = document.getElementById('li'+ item)
	if (elt) {
		elt.style.backgroundColor = '#5B69BD';
		elt.style.backgroundImage = 'url(../images/bal_draai.gif)';
	}
}
function liout(item) {
	elt = document.getElementById('li'+ item)
	if (elt) {
		elt.style.backgroundColor = '';
		elt.style.backgroundImage = 'url(../images/balletje.gif)';
	}
}

function liSubover(item) {
	elt = document.getElementById(item);
	if (elt) {
		elt.style.backgroundColor = '#5B69BD';
	}
}

function liSubout(item) {
	elt = document.getElementById(item);
	if (elt) {
		elt.style.backgroundColor = '';
	}
}

/* origineel, met oplichten 
function liover(item) {
	var w1= "s" + String(item);
	var w2= "s" + String(item +1);
	var li1 = "li" + item;
	document.getElementById(li1).style.backgroundImage = 'url(../images/bal_draai.gif)';
	if ( document.getElementById(w1) && document.getElementById(w2) ) {
		if (document.getElementById(w1).className == "oplichter")  {
			document.getElementById(w1).style.backgroundImage = 'url(../images/hoofdmenu_licht_boven.gif)';
		} else if (document.getElementById(w1).className == "oplichter_bottom") {
			document.getElementById(w1).style.backgroundImage = 'url(../images/hoofdmenu_licht_boven.gif)'; 
		}
		if  (document.getElementById(w2).className == "oplichter" ) {
			document.getElementById(w2).style.backgroundImage =  'url(../images/hoofdmenu_licht_onder.gif)';
		} else if (document.getElementById(w2).className == "oplichter_top") {
			document.getElementById(w2).style.backgroundImage =  'url(../images/hoofdmenu_licht_onder.gif)'; 
		}
	} 
}

function liout(item) {
	var w1= "s" + String(item);
	var w2= "s" + String(item +1);
	var li1 = "li" + item;
	document.getElementById(li1).style.backgroundImage = 'url(../images/balletje.gif)';
	if ( document.getElementById(w1) && document.getElementById(w2) ) {
		if  (document.getElementById(w1).className == "oplichter")  {
			document.getElementById(w1).style.backgroundImage = 'none';
		} else if (document.getElementById(w1).className == "oplichter_bottom") { 
			document.getElementById(w1).style.backgroundImage = 'url(../images/hoofdmenu_licht_onder.gif)'; 
		} 
		if (document.getElementById(w2).className == "oplichter")  {
			document.getElementById(w2).style.backgroundImage = 'none';
		} else if (document.getElementById(w2).className == "oplichter_top")  {
			document.getElementById(w2).style.backgroundImage = 'url(../images/hoofdmenu_licht_boven.gif)';  
		}
	} 
}

*/


function showSub(item) {
	timer=0;
	w1= "sub" + String(item);
	prevMenu = currentMenu
	currentMenu = w1
	if (1==2) {
		if (prevMenu != currentMenu) {
			hideAll();
			glowSub();
		}
	} else {	
		hideAll();
		if ( document.getElementById(w1) ) {
			document.getElementById(w1).style.display = "block";
		}
	} 
}

/* uitgeschakeld. Werkt niet in MSIE in verband met PNG-tjes.
function glowSub() {
	maxOpaque = 100;
	if (document.getElementById(currentMenu) ) { 
		if (timer <= maxOpaque ) {
			timer += 8;
			object = document.getElementById(currentMenu).style;
			object.display='block'; 		
			object.opacity = timer/100;
			object.MozOpacity = timer/100;
			object.KhtmlOpacity = timer/100;
			object.filter = 'alpha(opacity=' + timer + ')';
			object.clip = 'rect(0px ' + timer * 3.3 + 'px ' + timer * 3 + 'px 0px)';  
			object.clip = 'rect(0px 358px ' + timer * 3 + 'px 0px)';  
			setTimeout("glowSub();", 60); 
		} 
	} 
}

*/

function hideAll() {
	var i;
	for (i=1; i<=11; i++) {
		if (document.getElementById('sub' + i)) {
			document.getElementById('sub' + i).style.display='none';
		}
	}
}


/* glow-versie
function liSubover(item) {
	w1= "ss" + String(item)
	w2= "ss" + String(item +1)
	if ( document.getElementById(w1) && document.getElementById(w2) ) {
		if (document.getElementById(w1).className == "oplichterSub")  {
			document.getElementById(w1).style.backgroundImage = 'url(../images/hoofdmenu_licht_boven.gif)';
		} else if (document.getElementById(w1).className == "oplichterSub_bottom") {
			document.getElementById(w1).style.backgroundImage = 'url(../images/hoofdmenu_licht_boven.gif)'; 
		}
		if  (document.getElementById(w2).className == "oplichterSub" ) {
			document.getElementById(w2).style.backgroundImage =  'url(../images/hoofdmenu_licht_onder.gif)';
		} else if (document.getElementById(w2).className == "oplichterSub_top") {
			document.getElementById(w2).style.backgroundImage =  'url(../images/hoofdmenu_licht_onder.gif)'; 
		}
	} 
}

function liSubout(item) {
	w1= "ss" + String(item)
	w2= "ss" + String(item +1)
	if ( document.getElementById(w1) && document.getElementById(w2) ) {
		if  (document.getElementById(w1).className == "oplichterSub")  {
			document.getElementById(w1).style.backgroundImage = 'none';
		} else if (document.getElementById(w1).className == "oplichterSub_bottom") { 
			document.getElementById(w1).style.backgroundImage = 'url(../images/hoofdmenu_licht_onder.gif)'; 
		} 
		if (document.getElementById(w2).className == "oplichterSub")  {
			document.getElementById(w2).style.backgroundImage = 'none';
		} else if (document.getElementById(w2).className == "oplichterSub_top")  {
			document.getElementById(w2).style.backgroundImage = 'url(../images/hoofdmenu_licht_boven.gif)';  
		}
	} 
}

*/