contenteditable span validation

   
   
 
    .clsspan
    {
        background-color:#f4f4f4;
         color:GrayText;
       
        }

   

        $(document).ready(function () {
            // assign if not null
            if ($("#interestrate").val() != "")
            { $("#spaninterestrate").innerHTML = $("#interestrate").val(); }


            $("#spaninterestrate").focus(function () {
                editready(this);
            });
            $("#spaninterestrate").keyup(function () {
                validateOBj(this);
            });


            $("#spaninterestrate").blur(function () {
                CheckSpan(this);

            });

        });

            function CheckSpan(obj) {

                if (obj.innerHTML == "") {
                    obj.innerHTML = "Edit Text";
                    return false;
                }
                else {  }
            }
            //validation function for Format
            function validateOBj(obj) {
                var objvalue = obj.innerHTML;
                    var valid = /^\d{0,4}(\.\d{0,5})?$/.test(objvalue),
                    val = objvalue;

                    if (!valid) {
                        console.log("Invalid input!");
                        obj.innerHTML = val.substring(0, objvalue.length - 1);
                    }
               
                return false;
            }
            function editready(obj) {
              
                //obj.innerHTML = "";
            }
  

interestrate:

Amount:

---

interestrate--   Edit Text%

Amount--    $Edit Text