var w=250;
var inter_scroll;
function $(a){
	return document.getElementById(a);
}
function init(){
	var a=new Array(0,0,0);
	var n=c0=c1=c2=0;
	for(var i=0;i<sizes.length;i++){
		$('e'+i).style.position='absolute';
		n=i%3;
		a[n]+=sizes[i]+100;
		$('e'+i).style.left=(250+15)*n+"px";
		eval("$('e'+i).style.top=c"+n+"+'px'; c"+n+"+="+(sizes[i]+100));
	}
	var m=Math.max(Math.max(a[0],a[1]),a[2]);
	$("droite").style.position='relative';
	$("site").style.height=m+600+'px';
}
function gsp(){
	return (document.documentElement && document.documentElement.scrollTop) || window.pageYOffset || self.pageYOffset || document.body.scrollTop;
}
function scrollToTop(){
	if(gsp()<=0){
		clearTimeout(inter_scroll);
		return;
	}
	window.scrollBy(0,-400);
    inter_scroll = setTimeout('scrollToTop()',1);
	
	
}
/***************************************************************************************/
var t;
var currentpos=0;
var nextpos=0;
var wi=780;
var nb=0;
var inter_dia;
var dir=0;
function initdiaporama(nbi){
		nb=nbi;
		$('band').style.width=nb*wi+'px';
		$('band').style.left=currentpos+'px';
		$('diaporama').addEventListener('touchstart', touchstart, false);
}
function run(dirp){
		clearInterval(inter_dia);
		move(dirp);	
}
function move(dirp){
	dir=dirp;
	nextpos+=wi*dir*-1;
	if(nextpos>0){ 
		nextpos=-wi*(nb-1);
	}else if(nextpos<-wi*(nb-1)){
		nextpos=0
	}
	if(dir==1 && nextpos==0){
		dir=-1;	
	}else if(dir==-1 && nextpos==-wi*(nb-1)){
		dir=1;	
	}
	t = new Sequence();
	//t.addChild(new Tween($('band').style,'left',Tween.strongEaseIn,currentpos,nextpos,.5,'px'));
	t.addChild(new Tween($('band').style,'left',Tween.easeInOutExpo,currentpos,nextpos,1,'px'));
	t.onMotionFinished = function(){currentpos=nextpos};
	t.start();
}

var startX,currentX;
function touchstart(event){
		startX = event.touches[0].pageX;
		$('diaporama').addEventListener('touchmove', touchmove, false);
}
function touchmove(event){
	event.preventDefault();
	$('diaporama').removeEventListener("touchmove", touchmove, false);
	var touch = event.touches[0];
	currentX=startX-touch.pageX;
	if(currentX>0){
		move(1)
	}else{
		move(-1)
	}
}
function diaporamaTimer(){
	  inter_dia=setTimeout("diaporamaTimer()",1000*6);
	  move(1);
}




/*
	clearInterval(inter_dia);
	inter_dia = setInterval('diascroll()',1);

function diascroll(){
	if(dir==1){
		if(currentpos>nextpos){
			currentpos-=speed;
		}else{
			clearInterval(inter_dia);
		}
		if(currentpos<nextpos){
			currentpos=nextpos;
		}
	}else{
		if(currentpos<nextpos){
			currentpos+=speed;
		}else{
			clearInterval(inter_dia);
		}
		if(currentpos>nextpos){
			currentpos=nextpos;
		}
	}
	$('band').style.left=currentpos+'px';
}
*/