function pageScrolldown() {
		document.getElementById("conteudoescrito").scrollTop += 6; // horizontal and vertical scroll increments
    	scrolldelay = setTimeout('pageScrolldown()',100); // scrolls every 100 milliseconds		
		
}
function pageScrollup() {

    	document.getElementById("conteudoescrito").scrollTop -= 6; // horizontal and vertical scroll increments
    	scrolldelay = setTimeout('pageScrollup()',100); // scrolls every 100 milliseconds
}

function stopScroll() {
    	clearTimeout(scrolldelay);
}