function start_slideshow(start_frame, end_frame, delay) {
        setTimeout(switch_slides(start_frame,start_frame,end_frame, delay), delay);
    }
                            
    function switch_slides(frame, start_frame, end_frame, delay) {
        return (function() {
          	Effect.Fade('selection' + frame);
            if (frame == end_frame) { frame = start_frame; } else { frame = frame + 1; }
            setTimeout("Effect.Appear('selection" + frame + "');", 850);
            setTimeout(switch_slides(frame, start_frame, end_frame, delay), delay +850);
        })
    }

function aff_div_unique(id){
	if ((ScanCookie("dejapopup_infos")==0) && (document.getElementById(id)))
	{
		document.getElementById(id).style.display="block";
		CreationCookie("dejapopup_infos","oui",false)
	}
}		

function ScanCookie(variable){
	var cook = document.cookie;
	variable += "=";
	var place = cook.indexOf(variable,0);
	if (place <= -1) {
		return("0");
	}
	else {
		var end = cook.indexOf(";",place)
		if (end <= -1) {
			return(unescape(cook.substring(place+variable.length,cook.length)));
		}
		else {
			return(unescape(cook.substring(place+variable.length,end)));
		}
	}
}

function CreationCookie(nom,valeur,permanent){
	if(permanent){
		var dateExp = new Date(2020,11,11);
		dateExp = dateExp.toGMTString();
		var ifpermanent = '; expires=' + dateExp + ';';
	}
	else {
		ifpermanent = '';
	}
	document.cookie = nom + '=' + escape(valeur) + ifpermanent;
}