function checkMandatoryFields(theForm,language,mandatoryFields)
{
	tabMandatoryFields = mandatoryFields.split(",");
	missingFields = "";
	for (i=0;i<tabMandatoryFields.length;i++)
	{
		if (theForm[tabMandatoryFields[i]].value == "") missingFields+="\n- "+tabMandatoryFields[i];
	}
	if (missingFields != "")
	{
		if (language == 'en')
		{
			window.alert('The following mandatory fields are omited :'+missingFields)
		}
		else
		{
			window.alert('Les champs obligatoires suivant sont manquants :'+missingFields)
		}
		return false;
	}
	return true;
}