function Meretez() {
	var bal = document.getElementById('bal');
	var jobb = document.getElementById('jobb');
	var meret = jobb.offsetHeight;
	if (bal.offsetHeight > meret ) {
		meret = bal.offsetHeight;
	}
	bal.style.height = meret+"px";
	jobb.style.height = meret+"px";
}

function Torol(elem) {
	elem.value = "";
}