window.onload = function() {
	blok = 98;
	tussen = 10;
	alles = blok + tussen;
	boven = 230;
	wim = document.getElementById("midden").offsetHeight + 18;
	pag = document.getElementById("helepag").offsetHeight;
	jan = wim / blok;
	piet = Math.round(jan);
	flip = piet * alles;
	pil = flip - tussen - 16;
	nie = boven + pil + tussen;
	//alert (pil);
	
	document.getElementById("midden").style.height = pil + "px";
	document.getElementById("textveld").style.height = nie + "px";	
	}