function isSignupValid() {
      $("#errorSignupEmail").css("display", "none");      
      $("#errorSignupEmailValid").css("display", "none");

      var valid = true; 
      var emailPattern = /^[a-zA-Z0-9._-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4}$/;

      if($("#newsEmail").val() == '') {
        valid = false;
        $("#errorSignupEmail").css("display", "inline");
      } else if(!emailPattern.test($("#newsEmail").val())) {
        valid = false;
        $("#errorSignupEmailValid").css("display", "inline");
      }
      return valid;
  }

    function isValid() {
        $("#errorFName").css("display", "none");      
        $("#errorLName").css("display", "none");      
        $("#errorEmail").css("display", "none");      
        $("#errorEmailValid").css("display", "none");
        $("#firstname").css("border", "thin solid #BBBBFF");
        $("#lastname").css("border", "thin solid #BBBBFF");
        $("#email").css("border", "thin solid #BBBBFF");

        var valid = true; 
        var emailPattern = /^[a-zA-Z0-9._-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4}$/;

        if($("#firstname").val() == '') {
          valid = false;
          $("#errorFName").css("display", "list-item");
          $("#firstname").css("border", "medium solid #CC3311");
        }
        if($("#lastname").val() == '') {
          valid = false;
          $("#errorLName").css("display", "list-item");
          $("#lastname").css("border", "medium solid #CC3311");
        }
        if($("#email").val() == '') {
          valid = false;
          $("#errorEmail").css("display", "list-item");
          $("#email").css("border", "medium solid #CC3311");
        } else if(!emailPattern.test($("#email").val())) {
          valid = false;
          $("#errorEmailValid").css("display", "list-item");
          $("#email").css("border", "medium solid #CC3311");
        }

        return valid;
    }