// JavaScript Document

var scrollY = 0;

function scrollUp() {
  if(scrollY < 0) { // verhindert ungewolltes Scrollen
    var text = document.getElementById('scrollText');
    scrollY = scrollY+2;
    text.style.top = scrollY + 'px';
    
    myTimer = window.setTimeout('scrollUp()', 20);
  }
}

function scrollDown() {
  var text = document.getElementById('scrollText');
  scrollY = scrollY-2;
  text.style.top = scrollY + 'px';
  
  myTimer = window.setTimeout('scrollDown()', 20);
}

function stopTimer() {
  try {
		window.clearTimeout(myTimer);
	}
	catch(e) {
		//alert(e);
	}
	finally {
		; // keine Bereinigung, Fehler ignorieren
	}
}