function labelErreur (n,b)
{
	c = (b==false)?'red':'black';
	o = MM_findObj (n);
	if (o != null)
		if (o.style != null) o.style.color = c;
}

function stringCheck (n,s,e)
{
	s = s.trim ();
	rc = (s.trim().length > 0);
	
	labelErreur ("lbl_"+n, rc);

	if (!rc) alert (e);

	return rc;
}

function addOption (n,v,t)
{
	o = MM_findObj (n);
	if (o != null) o.options [o.options.length] = new Option (t, v, false, false);
}

function setSelectOptions_dd (n,idx,idxj) {addOption (n, idx, t_jour[idxj]+" "+idx);}
function setSelectOptions_mm (n,idx) {addOption (n, idx, t_mois [idx-1]);}
function setSelectOptions_aa (n,idx) {addOption (n, idx, idx);}