function get_trad_champ(champ) 
{
		switch(champ)
		{
				case "form_cours" :
						return("You must select at least one criterion");
						break;	
				case "form_equipe" :
						return("You must select at least one criterion");
						break;	
				case "nom" :
						return("Please enter your name");
						break;	
				case "prenom" :
						return("Please enter your first name");
						break;					
				case "email" :
						return("Your email is not valid.");
						break;	
				case "adresse" :
						return("Please enter your address");
						break;	
				case "cp" :
						return("Please enter your postcode");
						break;	
				case "ville" :
						return("Please indicate your town");
						break;			
				case "objet" :
						return("Please select the subject of your message");
						break;	
				case "message" :
						return("Please enter your message");
						break;	
				case "numeric" :
					return("This field must be numeric.");
					break;	
				case "recPrixMin_numeric" :
					return("The minimum price must be numeric.");
					break;
				case "recPrixMax_numeric" :
					return("The maximum price must be numeric.");
					break;
				case "recSurfaceMin_numeric" :
					return("Le champ de la surface minimum est exclusivement numérique.");
					break;
				case "recSurfaceMax_numeric" :
					return("Le champ de la surface maximum est exclusivement numérique.");
					break;
				case "recDateConstruction_numeric" :
					return("Le champ de la date de construction doit avoir la forme d'une date. Exemple : 1975.");
					break;
				case "at_least_dpt" :
					return("Please choose at least one department");
					break;
				case "fill_agence_name" :
					return("Please inform an agency name");
					break;
				case "villes" :
					return("Cities");
					break;
				default :
						return(champ);
		}
}

function get_trad_lib(lib) 
{
		switch(lib)
		{
				case "vide" :
						return("Le champ XX est obligatoire.\nVeuillez le ressaisir s'il vous plaît.");
						break;
				default : 
						return(lib)
		}
}

function replace_lib(expr,a,b) {
   var i=0
   while (i!=-1) {
      i=expr.indexOf(a,i);
      if (i>=0) {
         expr=expr.substring(0,i)+b+expr.substring(i+a.length);
         i+=b.length;
      }
   }
   return expr
}