var scrollStep=10;
timerLeft = '';
timerRight = '';

function toLeft(id){
	document.getElementById(id).scrollLeft=0;
}

function toRight(id){
	document.getElementById(id).scrollLeft=document.getElementById(id).scrollWidth;
}

function scorridx(id){
	clearTimeout(timerRight);
	document.getElementById(id).scrollLeft+=scrollStep;
	timerRight=setTimeout("scorridx('"+id+"')",10);
	document.getElementById('btnsx_'+id).style.visibility='visible';
}

function scorricdx(id){
	clearTimeout(timerRight);
	document.getElementById(id).scrollLeft+=scrollStep;
	timerRight=setTimeout("scorricdx('"+id+"')",10);
	document.getElementById('btnsx').style.visibility='visible';
}

function scorrisx(id){
	clearTimeout(timerLeft);
	document.getElementById(id).scrollLeft-=scrollStep;
	timerLeft=setTimeout("scorrisx('"+id+"')",10);
	if (document.getElementById(id).scrollLeft<=0) document.getElementById('btnsx_'+id).style.visibility='hidden';
}

function scorricsx(id){
	clearTimeout(timerLeft);
	document.getElementById(id).scrollLeft-=scrollStep;
	timerLeft=setTimeout("scorricsx('"+id+"')",10);
	if (document.getElementById(id).scrollLeft<=0) document.getElementById('btnsx').style.visibility='hidden';
}

function stopMe(){
	clearTimeout(timerRight);
	clearTimeout(timerLeft);
}

function visualizzaDiv(){
	//document.getElementById('catalogo_interno').style.visibility = 'visible';
}