// JavaScript Document
function nastav_vysky() {
	var lb = document.getElementById("lmenu_in");
	var rb = document.getElementById("obsah_in");
	var x = 540;
	if ((lb.offsetHeight) < x &&  (rb.offsetHeight) < x) {
		rb.style.height = x + 'px';		
		lb.style.height = x + 'px';		
  }						
	if ((lb.offsetHeight) > (rb.offsetHeight)) {						
		rb.style.height = lb.offsetHeight + 'px';		
	} else {
		lb.style.height = rb.offsetHeight + 'px';		
	}
}