window.onload = resize;
window.onresize = resize;

function resize(){
	fBodyHeight = document.body.clientHeight;
	document.getElementById('main').style.height = (fBodyHeight - 165 - 57) +'px';
	document.getElementById('content_scroll').style.height = (fBodyHeight - 165 - 57 - 26) +'px';
	
}
function dropdown(fNum, fDisplay){
	document.getElementById('div'+ fNum).style.display = (fDisplay?'block':'none');
	
	fClass = document.getElementById('menu_'+ fNum).className.replace('hover', '');
	
	if(fDisplay == 1)
		fClass += ' hover';
	
	document.getElementById('menu_'+ fNum).className = fClass;
}
/* foto galerij */
var vCurrentPhoto = 0;
var vMove;
function setPhoto(fNumber){
	vCurrentPhoto = fNumber;
	
	document.getElementById('onderschrift').innerHTML = vImages[fNumber][0];
	document.getElementById('foto').innerHTML = '<img src="/data/images/fotos/gr_'+ vImages[fNumber][1] +'" alt="" />';
	document.getElementById('omschrijving').innerHTML = vImages[fNumber][2];
}
function nextPhoto(fNum){
	vCurrentPhoto += fNum;
	
	if(vCurrentPhoto < 0)
		vCurrentPhoto = vImages.length - 1;
	else if(vCurrentPhoto == vImages.length)
		vCurrentPhoto = 0;
	
	setPhoto(vCurrentPhoto);
}
function scroll(fDir){
	if(fDir == 'right')
		fPlus = -5;
	else
		fPlus = 5;
		
	oTable = document.getElementById('fotogalerij');
	fLeft = parseInt(oTable.style.left.replace('px', ''));
	fWidth = (oTable.clientWidth - 485) * -1;
	
	function move(){
		fLeft += fPlus;
		
		if(fLeft > 0)
			fLeft = 0;
		else if(fLeft < fWidth)
			fLeft = fWidth;
		
		oTable.style.left = fLeft +'px';
		
		vMove = setTimeout(move, 25);
	}
	
	move();
}
function stopScroll(){
	clearTimeout(vMove);
}