// JavaScript Document

function selectIndex(selObj) 
{ 
	ref = selObj.options[selObj.selectedIndex].value;
	
	if(ref==1)
	{
		document.getElementById('footermenu').style.display = 'none';
		document.getElementById('footermenu').style.visibility = 'hidden';
		
		document.getElementById('bovenmenu').style.display = 'none';
		document.getElementById('bovenmenu').style.visibility = 'hidden';
		
		document.getElementById('hoofdmenu').style.display = '';
		document.getElementById('hoofdmenu').style.visibility = '';
	}
	else if(ref==2)
	{
		document.getElementById('footermenu').style.display = 'none';
		document.getElementById('footermenu').style.visibility = 'hidden';
		
		document.getElementById('hoofdmenu').style.display = 'none';
		document.getElementById('hoofdmenu').style.visibility = 'hidden';
		
		document.getElementById('bovenmenu').style.display = '';
		document.getElementById('bovenmenu').style.visibility = '';
	}
	else if(ref==3)
	{	
		document.getElementById('hoofdmenu').style.display = 'none';
		document.getElementById('hoofdmenu').style.visibility = 'hidden';
		
		document.getElementById('bovenmenu').style.display = 'none';
		document.getElementById('bovenmenu').style.visibility = 'hidden';
		
		document.getElementById('footermenu').style.display = '';
		document.getElementById('footermenu').style.visibility = '';
	}
}

function selectMenu(selObj) 
{ 
	ref = selObj.options[selObj.selectedIndex].value;
	
	if(ref==1)
	{
		document.getElementById('3').style.display = 'none';
		document.getElementById('3').style.visibility = 'hidden';
		
		document.getElementById('2').style.display = 'none';
		document.getElementById('2').style.visibility = 'hidden';
		
		document.getElementById('1').style.display = '';
		document.getElementById('1').style.visibility = '';
	}
	else if(ref==2)
	{
		document.getElementById('1').style.display = 'none';
		document.getElementById('1').style.visibility = 'hidden';
		
		document.getElementById('3').style.display = 'none';
		document.getElementById('3').style.visibility = 'hidden';
		
		document.getElementById('2').style.display = '';
		document.getElementById('2').style.visibility = '';
	}
	else if(ref==3)
	{	
		document.getElementById('1').style.display = 'none';
		document.getElementById('1').style.visibility = 'hidden';
		
		document.getElementById('2').style.display = 'none';
		document.getElementById('2').style.visibility = 'hidden';
		
		document.getElementById('3').style.display = '';
		document.getElementById('3').style.visibility = '';
	}
}

function showtr(id)
{
	if(document.getElementById(id).style.display == 'none' && document.getElementById(id).style.visibility == 'hidden')
	{
		document.getElementById(id).style.display = '';
		document.getElementById(id).style.visibility = '';
	} 
	else 
	{
		document.getElementById(id).style.display = 'none';
		document.getElementById(id).style.visibility = 'hidden'
	}
}