displayTime = 4000;
transitionTime = 20;

currentArticle = 1;
loopArticle = setTimeout('changeArticle();',displayTime);

function fade(index,currentIndex,idx,delay) {
	document.getElementById('contenuActu_'+currentIndex).className='actuContenu trans'+idx;
	if (idx==0) continueSelectActuIndex(index)
	else setTimeout('fade('+index+','+currentIndex+','+--idx+','+delay+')',delay);
}

function selectActuIndex(index,delay) {
	clearTimeout(loopArticle);
	oldIndex = 0;
	for (i=1;i<=3;i++)
		if (document.getElementById('titreActu_on_'+i).style.display != 'none') oldIndex = i;
	setTimeout('fade('+index+','+ oldIndex +',10,'+delay+')',delay);
}

function continueSelectActuIndex(index) {
	currentArticle = index;
	for (i=1;i<=3;i++) {
		if (i==index) {
			document.getElementById('contenuActu_'+i).className = 'actuContenu';
			document.getElementById('contenuActu_'+i).style.display = 'block';
			document.getElementById('titreActu_on_'+i).style.display = 'inline';
			document.getElementById('titreActu_off_'+i).style.display = 'none';
		} else {
			document.getElementById('contenuActu_'+i).style.display = 'none';
			document.getElementById('titreActu_on_'+i).style.display = 'none';
			document.getElementById('titreActu_off_'+i).style.display = 'inline';
		}
	}
	loopArticle = setTimeout('changeArticle();',displayTime);
}

function changeArticle() {
	currentArticle++;
	if (currentArticle>3) currentArticle = 1;
	selectActuIndex(currentArticle,transitionTime*5);
}