function VideListeBox (obj)
{
	var nbelem = obj.length  - 1			
	for (i=nbelem ; i>=0; i--) obj.options[i] = null;			
}

function RempliListBox (obj, tableau)
{
	VideListeBox (obj);
	
	opt = new Option("-");
	opt.value = "";	
	obj.options[0] = opt;	
		
	nbelem = tableau[0].length;
	for (i=0; i<nbelem; i++)
	{
		var texte = tableau[1][i];
		var valeur = tableau[0][i];		
		opt = new Option(texte);
		opt.value = valeur;	
		obj.options[i+1] = opt;
	}
}