function check_field(){
		var contact_form = document.getElementById("contact_form");
		var form_valid = true;

		/*
		document.getElementById("civilite").className = "";
		if(contact_form.civilite.value == ""){
			document.getElementById("civilite").className = "field_required";
			form_valid = false;
		}
		
		document.getElementById("nom").className = "";
		if(contact_form.nom.value == ""){
			document.getElementById("nom").className = "field_required";
			form_valid = false;
		}
		
		document.getElementById("prenom").className = "";
		if(contact_form.prenom.value == ""){
			document.getElementById("prenom").className = "field_required";
			form_valid = false;
		}
		document.getElementById("ville").className = "";
		if(contact_form.ville.value == ""){
			document.getElementById("ville").className = "field_required";
			form_valid = false;
		}
		*/
		document.getElementById("email").className = "";
		if(contact_form.email.value == ""){
			document.getElementById("email").className = "field_required";
			form_valid = false;
		}
		/*
		document.getElementById("objet").className = "";
		if(contact_form.objet.value == ""){
			document.getElementById("objet").className = "field_required";
			form_valid = false;
		}
		document.getElementById("objet").className = "";
		if(contact_form.objet.value == ""){
			document.getElementById("objet").className = "field_required";
			form_valid = false;
		}
		document.getElementById("destinateur").className = "";
		if(contact_form.destinateur.value == ""){
			document.getElementById("destinateur").className = "field_required";
			form_valid = false;
		}
		*/
		
		//return form_valid;
		if(form_valid)
		{
			contact_form.submit();
		}
		else
		{
			return false;
		}
	}