function Cacher(div_id) {
    document.getElementById(div_id).style.visibility="hidden";
    document.getElementById(div_id).style.display="none";
  }
function Montrer(id) {
    document.getElementById(id).style.visibility="visible";
    document.getElementById(div_id).style.display="block";
  }

  
	function affiche_option(champs,id_text)
	{
		document.getElementById(id_text).value = champs.options[renvoie_id_option(champs)].text;
	}
	function renvoie_id_option(champs)
	{
		for (i=0;i<champs.options.length;i++)
		{
			if (champs.options[i].value == champs.value)
				res = i;
		}
		return res;
	}

	function supprimer_accent(chaine) 
	{
		var res 		= "";
		if ((chaine) && (chaine != ""))
		{
			res = chaine.replace(/[àâäÀÂÄ]/gi,"a")
			res = res.replace(/[éèêëÉÈÊË]/gi,"e")
			res = res.replace(/[îïÎÏ]/gi,"i")
			res = res.replace(/[ôöÔÖ]/gi,"o")
			res = res.replace(/[ùûüÙÛÜ]/gi,"u")
			res = res.replace(/[çÇ]/gi,"c")
			res = res.replace(/[ ]/gi,"-");
		}
		return res;	
	}