function startTime() {
	var today=new Date();
	var h=today.getHours();
	var m=today.getMinutes();
	var s=today.getSeconds();
	var d=today.getDate();
	var mm=today.getMonth()+1;
	var y=today.getFullYear();
	
  var weekday=new Array(7);
  weekday[0]="Sunday";
  weekday[1]="Monday";
  weekday[2]="Tuesday";
  weekday[3]="Wednesday";
  weekday[4]="Thursday";
  weekday[5]="Friday";
  weekday[6]="Saturday";
  
  var month=new Array(12);
  month[0]="Jan";
  month[1]="Feb";
  month[2]="Mar";
  month[3]="Apr";
  month[4]="May";
  month[5]="Jun";
  month[6]="Jul";
  month[7]="Aug";
  month[8]="Sep";
  month[9]="Oct";
  month[10]="Nov";
  month[11]="Dec";

	// add a zero in front of numbers<10
	h=checkTime(h);
	m=checkTime(m);
	s=checkTime(s);
	//d=checkTime(d);
	mm=checkTime(mm);

	document.getElementById('klokke').innerHTML=weekday[today.getDay()]+" "+d+" "+month[today.getMonth()]+" "+h+":"+m+":"+s;
	t=setTimeout('startTime()',500);
}

function checkTime(i) {
	if (i<10) {
		i="0" + i;
	}
	return i;
}

// Menu related
function show_menu(menuId){
	hide_menus();
	if (document.getElementById(menuId)){
		document.getElementById(menuId).style.visibility='visible';
	}
}

function hide_menus(){
/*
	var menues=document.getElementsByClassName('menu');

	for (i=0;i<menues.length ;i++ )
	{
		menues[i].style.visibility='hidden';
	}
*/	

	if (document.getElementById('menu1')){
		document.getElementById('menu1').style.visibility='hidden';
	}
	if (document.getElementById('menu2')){
		document.getElementById('menu2').style.visibility='hidden';
	}
	if (document.getElementById('menu3')){
		document.getElementById('menu3').style.visibility='hidden';
	}
	if (document.getElementById('menu4')){
		document.getElementById('menu4').style.visibility='hidden';
	}
	if (document.getElementById('menu5')){
		document.getElementById('menu5').style.visibility='hidden';
	}
	if (document.getElementById('menu6')){
		document.getElementById('menu6').style.visibility='hidden';
	}
	if (document.getElementById('menu7')){
		document.getElementById('menu7').style.visibility='hidden';
	}
	if (document.getElementById('menu8')){
		document.getElementById('menu8').style.visibility='hidden';
	}
	if (document.getElementById('menu9')){
		document.getElementById('menu9').style.visibility='hidden';
	}
	if (document.getElementById('menu10')){
		document.getElementById('menu10').style.visibility='hidden';
	}
}