var knapper = new Array("popup-meny", "snarvei-meny");

var tiden;
var knapper_elm = new Array();
var lastet = false;

function init() {

  for (var i=0; i<knapper.length; i++) {
      knapper_elm[i] = document.getElementById(knapper[i]);
  }
  avmeny();
  lastet=true;
}

function vismeny() {
  if (! lastet) return;
  beholdmeny();
  var argstr=" ";
  for (var j = 0; j < arguments.length; j++)
    argstr += " " + arguments[j];
  argstr+= " ";

  for (var i=0; i<knapper.length;i++) {
   if (argstr.indexOf(" " + knapper[i] + " ") != -1)
      knapper_elm[i].style.visibility="visible";
    else
      knapper_elm[i].style.visibility="hidden";
  }
}

function avmeny() {
	tiden = setTimeout('vismeny()', 500);
}

function beholdmeny() {
	if(tiden){
		clearTimeout(tiden);
	}
}