function overTopMenu(val,how){
	if(how=='in'){
		document.images[val].src = "/imgs/stip.gif";
		}else{
		document.images[val].src = "/imgs/leeg.gif";
		}
}


////////////

var show = 0;

function showMenu(m){
	hideMenu();
	document.getElementById(m).style.visibility="visible";
	show=1;
}

function hideMenu(){
	if(show==0){
		document.getElementById('m1').style.visibility="hidden";
		document.getElementById('m2').style.visibility="hidden";
		document.getElementById('m3').style.visibility="hidden";
		}
}
document.onmousedown=hideMenu;
function outMenu(){
	show=0;
}

function overMenu(){
	show=1;
}

function checkInlog(){
	if(!document.inlog.code.value){
		alert('Gebruikersnaam is verplicht...');
		document.inlog.code.focus();
		}
	else if(!document.inlog.password.value){
		alert('Wachtwoord is verplicht...');
		document.inlog.password.focus();
	}
	else{
		document.inlog.submit();
	}
}