// Fonction de vérification des données saisies par l'utilisateur 
	// sur le formulaire de recherche de bien immobilier

function verif()
{

	// On récupère les variables
	
	$nom = document.getElementById('nom').value;
	$prenom = document.getElementById('prenom').value;
	$adresse = document.getElementById('adresse').value;
	$ville = document.getElementById('ville').value;
	$codepostal = document.getElementById('codepostal').value;
	$mail = document.getElementById('mail').value;
	$telephone = document.getElementById('telephone').value;
	$arrivee = document.getElementById('arrivee').value;
	$depart = document.getElementById('depart').value;
	$nuitees = document.getElementById('nuitees').value;
	$nbperso = document.getElementById('nbperso').value;
	
if ($nom == "")
{
alert ('Please check your lastname !');
document.forms[0].nom.focus();
return false ;
}
	else {
		if ($prenom == "") 
			{
			alert ("Please check your firstname !");
			document.forms[0].prenom.focus();
			return false ;
			}
		else {
			if ($adresse == "") 
				{
				alert ("Please check your address !");
				document.forms[0].adresse.focus();
				return false ;
				}	
			else {
				if ($ville =="") 
					{
					alert ("Please check your city !");
					document.forms[0].ville.focus();
					return false ;
					}	
				else {
					if ($codepostal =="") 
						{
						alert ("Please check your zip code !");
						document.forms[0].codepostal.focus();
						return false ;
						}
					else {
						if ($mail =="") 
							{
							alert ("Please check your e-mail address l !");
							document.forms[0].mail.focus();
							return false ;
							}	
						else {
							if ($telephone =="") 
								{
								alert ("Please check your phone number !");
								document.forms[0].telephone.focus();
								return false ;
								}
									else {
								if ($arrivee =="") 
									{
									alert ("Please check your arrival date !");
									document.forms[0].arrivee.focus();
									return false ;
									}
								else {
									if ($depart =="") 
									{
									alert ("Please check your departure date");
									document.forms[0].depart.focus();
									return false ;
									}	
									else {
								if ($nuitees =="") 
									{
									alert ("Please check the number of nights !");
									document.forms[0].nuitees.focus();
									return false ;
									}
								else {
									if ($nbperso =="") 
									{
									alert ("Please check the number of persons !");
									document.forms[0].nbperso.focus();
									return false ;
											}	
										}	
									}
								}	
							}
						}
					}	
				}
			}
		}
	}
}