var id_news;
var boxHeight;
var repeatHeight;
var stopScroll;
var x;

function initScroll(){

    id_news      = $('blocknews');
    boxHeight    = id_news.style.height.replace('px','');
    repeatHeight = id_news.scrollHeight;
    id_news.innerHTML += id_news.innerHTML;
	id_news.innerHTML += id_news.innerHTML;
    stopScroll   = 0;
    x = setTimeout("scrollMe()", 500);
}

function scrollMe() {
	clearTimeout(x)
	if(stopScroll == 1) {
		return;
	}
	id_news.scrollTop = id_news.scrollTop + 2;
	if(id_news.scrollTop <= repeatHeight) {
		//console.log('inférieur : '+ id_news.scrollTop, repeatHeight);
		x = setTimeout("scrollMe()", 100);
	}
	else {
		//console.log('supérieur');
		id_news.scrollTop = 0;
		x = setTimeout("scrollMe()", 100);
	}
}
addEvent(window, 'load', initScroll);


function pauseScroll(){
	stopScroll   = 1;
	x = setTimeout("scrollMe()", 500);
}
function repriseScroll(){
	stopScroll   = 0;
	x = setTimeout("scrollMe()", 500);
}