var TabBandeau = new Array;

TabBandeau[0] = "Kyangdam.jpg";
TabBandeau[1] = "Tassili du Hoggar.jpg";
TabBandeau[2] = "Hauts plateaux.jpg";
TabBandeau[3] = "Tsomoriri.jpg";
TabBandeau[4] = "zhongdian.jpg";
TabBandeau[5] = "gilf kebir.jpg";
TabBandeau[6] = "tefedest.jpg";
TabBandeau[7] = "Groenland.jpg";
TabBandeau[8] = "Daulaghiri.jpg";




function Left(str, n){
	if (n <= 0)
	    return "";
	else if (n > String(str).length)
	    return str;
	else
	    return String(str).substring(0,n);
}

function GetImgBandeauAleatoire(IdImgBandeau){

	var TableLength = TabBandeau.length;
	var nbBandeau=Math.random()*10;
	nbB=parseInt(nbBandeau);
	
	while(nbB > (TableLength-1)){
		nbBandeau=Math.random()*10;	
		nbB=parseInt(nbBandeau);
	}

	//On choisit l'image
	document.getElementById(IdImgBandeau).src = "upload/bandeau_accueil/" + TabBandeau[nbB];

}