/**
 * @author Frederic
 */

var timerInterval = 5000;
var widthImg = 600;

// Deplacement du bloc LaUne au onMouseOver
var initTweenNews = function(){
	posXstart = 0;
	posXend = 0;
	timerNews = 0;
	
	myTween = new Fx.Tween('une',{link:'cancel'});
	myTween.addEvent('start', function(event){
		$clear(timerNews)
	});		
	myTween.addEvent('complete', function(event){
		timerNews = nextNews.periodical(timerInterval);
	});	

	var a = document.getElementById('vignettesune').getElementsByTagName('a');
	for(var i=0; i < a.length ; i++ ){
		a[i].i = i;
		a[i].onmouseover = function(){			
			posXend = (widthImg*(this.i)*-1);
			myTween.start('left', [posXstart, posXend]);
			posXstart = posXend;
		}
	}
	
	
	// Deplacement du bloc LaUne a la prochaine news
	var nextNews = function(){
		var size = $('une').getSize();
		posXend -= widthImg;
		if(posXend <= size.x*-1)
			posXend = 0;
		$('une').tween('left', [posXstart, posXend]);
		posXstart = posXend;	
		
	};	
	timerNews = nextNews.periodical(timerInterval);	
};