APEX

Dear All,

I need to enter number only in number field. so i have used below JavaScript code

<SCRIPT language=Javascript>

      <!--

      function isNumberKey(evt)

      {

         var charCode = (evt.which) ? evt.which : event.keyCode

         if (charCode > 31 && (charCode < 48 || charCode > 57))

            return false;

         return true;

      }

      //-->

   </SCRIPT>

onkeypress="return isNumberKey(event)";

Now problem is , Values may be in decimal point (.) like 12.30 .

When i try to enter with decimal point in to number filed where i have apply above java script code , not allow me to enter decimal points.

How can i enter number with decimal points.

Thanks