function init() {
    window._selectedonglet=1
	setInterval('rotateDiapo()',6000)
	$('menuNav').observe('click',function(e){
	    if(e.target.nodeName=='LI'){
	        switch(e.target.id){
	            case 'ongletDiaporama1':showOngletPr(1);break;
	            case 'ongletDiaporama2':showOngletPr(2);break;
	            case 'ongletDiaporama3':showOngletPr(3);break;
//				case 'ongletDiaporama4':showOngletPr(4);break;
	        }
	    }	    
	});
		
}
function rotateDiapo() {
    switch (window._selectedonglet) {
        case 1: window._selectedonglet=2; break;
        case 2: window._selectedonglet=1; break;
        case 3: window._selectedonglet=1; break;
//        case 4: window._selectedonglet=1; break;
    }
    showOngletPr(window._selectedonglet) 
}
var actu_is_moving = false;
var position_actuelle=0;
function showOngletPr(i) {
    if (!actu_is_moving) {	
                actu_is_moving = true;
                var position_actuelle = parseInt($('diaporamaNavContainer').getStyle('left'));
                var position_voulue = - ((i - 1) * 560);
                var deplacement = position_voulue - position_actuelle;
                new Effect.Move("diaporamaNavContainer", {x:deplacement, y:0, mode:"relative"});
				position_actuelle=position_voulue;
				
	            for(y=1;y<2;y++){
			        $('ongletDiaporama'+y).removeClassName("courant");
	            }
	            $('ongletDiaporama'+i).addClassName("courant")
                setTimeout(function (e) {actu_is_moving = false;}, 1000);
    }
}