function loadDetailBox(){
	document.getElementById('articleContentBoxMenu').style.display='block'; //display detail menu
	document.getElementById('detailBox[2]').style.display='none';
	document.getElementById('detailBox[3]').style.display='none';
	document.getElementById('detailBox[4]').style.display='none';
	updateDetailBox(1);
}

function updateDetailBox(idActive){
	for(i=1;i<=4;i++){
		if(i!=idActive){
			document.getElementById('detailBox['+i+']').style.display='none';
			document.getElementById('detailBoxMenu['+i+']').className='articleContentBoxMenu left';
		}
		else {
			document.getElementById('detailBox['+i+']').style.display='block';
			document.getElementById('detailBoxMenu['+i+']').className='articleContentBoxMenuActive left';
		}
	}
}