var slideSpeedy = 0;

function slideMenu(){
	if(Number(slideSpeedy) != 0){
		var lCont = document.getElementById("theListCont");
		var l     = document.getElementById("theList");
		maxScroll = Number(lCont.offsetHeight) - Number(l.offsetHeight);
		if( Number(l.scrollTop) >= 0 && Number(l.scrollTop) <= maxScroll ){
			l.scrollTop += slideSpeedy*4;
			setTimeout(slideMenu,150);
		}
	}
}


function downItems(){
	slideSpeedy = 5;
	slideMenu();
}

function upItems(){
	slideSpeedy = -5;
	slideMenu();
}