var id = 'contenuliste';
function setscrolltopup(id)	{document.getElementById(id).scrollTop -= 3;}
function setscrolltopdown(id){document.getElementById(id).scrollTop += 3;}
function upstart(id){timer = setInterval("setscrolltopup(id)", 1);}
function upstop(){clearInterval(timer);}
function downstart(id){timer = setInterval("setscrolltopdown(id)", 1);}	
function downstop(){clearInterval(timer);}

function check(nom) {
	if(document.forms['formulaire'].elements['check_'+nom].checked==false) {
		document.forms['formulaire'].elements['check_'+nom].checked=true;
		document.getElementById(nom).src = 'images/checked.gif';
	} else {
		document.forms['formulaire'].elements['check_'+nom].checked=false;
		document.getElementById(nom).src = 'images/checkbox.gif';
	}
}