java code 3

function afficherOubliNom() {

    var elmt = document.getElementById("oublinom");
    var elmt2 = document.getElementById("oublitel");
    var elmt3 = document.getElementById("oublimail");
    var elmt4 = document.getElementById("oublimess");


    if(document.getElementById("name").value == null){

        elmt.style.display="block";

    }
    if(document.getElementById("email").value == null){
        elmt3.style.display="block";

    }
    if(document.getElementById("phone").value == null){
        elmt2.style.display="block";


    }

    if(document.getElementById("message").value == null){

        elmt4.style.display="block";

    }

}