function activ(etat) {
	if (etat == 1) { 	
		document.getElementById("don_soin_etape1_unefois").style.display="block";
		document.getElementById("don_soin_etape1_touslesmois").style.display="none";
		document.getElementById("don_soin_bouton").style.display="none";
		document.getElementById("p_don_texte1").style.display="block";
		document.getElementById("p_don_texte2").style.display="none";
		
		
	}
	if (etat == 2) {
		document.getElementById("don_soin_etape1_touslesmois").style.display="block";
		document.getElementById("don_soin_etape1_unefois").style.display="none";
		document.getElementById("don_soin_bouton").style.display="none";
		document.getElementById("p_don_texte1").style.display="none";
		document.getElementById("p_don_texte2").style.display="block";
		
	}
}

function activ2(etat) {
	if (etat == 1) { 	
		document.getElementById("don_education_etape1_unefois").style.display="block";
		document.getElementById("don_education_etape1_touslesmois").style.display="none";
		document.getElementById("don_education_bouton").style.display="none";
		document.getElementById("p_don_texte1").style.display="block";
		document.getElementById("p_don_texte2").style.display="none";
	}
	if (etat == 2) {
		document.getElementById("don_education_etape1_touslesmois").style.display="block";
		document.getElementById("don_education_etape1_unefois").style.display="none";
		document.getElementById("don_education_bouton").style.display="none";
		document.getElementById("p_don_texte1").style.display="none";
		document.getElementById("p_don_texte2").style.display="block";
	}
}
function activ3(etat) {
	if (etat == 1) { 	
		document.getElementById("don_education_etape1_prix1").style.display="block";
		document.getElementById("don_education_etape1_prix2").style.display="none";
	}
	if (etat == 2) {
		document.getElementById("don_education_etape1_prix2").style.display="block";
		document.getElementById("don_education_etape1_prix1").style.display="none";
	}
}
function activ4(etat) {
	if (etat == 1) { 	
		document.getElementById("jedonneunefois").style.display="block";
		document.getElementById("jedonnetouslesmois").style.display="none";
		document.getElementById("switchjedonne").style.display="none";
		document.frm_don.MONTANT3[4].checked = false;
		document.frm_don.MONTANT3[5].checked = false;
		document.frm_don.MONTANT3[6].checked = false;
		document.frm_don.MONTANT3[7].checked = false;
	}
	if (etat == 2) {
		document.getElementById("jedonneunefois").style.display="none";
		document.getElementById("jedonnetouslesmois").style.display="block";
		document.getElementById("switchjedonne").style.display="none";
		document.frm_don.MONTANT3[0].checked = false;
		document.frm_don.MONTANT3[1].checked = false;
		document.frm_don.MONTANT3[2].checked = false;
		document.frm_don.MONTANT3[3].checked = false;
	}
}

function isEmail(adresse_email){

	arobase = adresse_email.indexOf("@");
	point = adresse_email.indexOf(".",arobase);
	mauvais_endroit_point = arobase+1;
	double_point = adresse_email.indexOf("..",arobase);
	nbre_carac = adresse_email.length - point;
	double_arobase = adresse_email.indexOf("@",arobase+1);
	   
	if ( (arobase < 1) || (point <= mauvais_endroit_point) || (adresse_email.length < 5) || (double_point >= 0) || (nbre_carac < 3) || (double_arobase >= 0) )
	{return false;}
	
	else {return true}
}

function IsNumeric(strString)
   //  check for valid numeric strings	
   {
   var strValidChars = "0123456789.-";
   var strChar;
   var blnResult = true;

   if (strString.length == 0) return false;

   //  test strString consists of valid characters listed above
   for (i = 0; i < strString.length && blnResult == true; i++)
      {
      strChar = strString.charAt(i);
      if (strValidChars.indexOf(strChar) == -1)
         {
         blnResult = false;
         }
      }
   return blnResult;
 }