Ad Code

Restricting input to textbox: allowing only numbers and decimal point

June 11, 2022

<HTML>
  <HEAD>
    <SCRIPT language=Javascript>
       <!--
       function isNumberKey(evt)
       {
          var charCode = (evt.which) ? evt.which : evt.keyCode;
          if (charCode != 46 && charCode > 31
            && (charCode < 48 || charCode > 57))
             return false;
          return true;
       }
       //-->
    </SCRIPT>
  </HEAD>
  <BODY>
    <INPUT id="txtChar" onkeypress="return isNumberKey(event)" type="text" name="txtChar">
  </BODY>
</HTML>

 



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