// JScript File
function onlyNumbers(field, event)

      {

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

               var keyCode = event.keyCode ? event.keyCode : event.which ? event.which : event.charCode;          

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

    {

        return false;

        }

    if (keyCode == 13) {

        var i;

        for (i = 0; i < field.form.elements.length; i++)

        if (field == field.form.elements[i])

          break;

        i = (i + 1) % field.form.elements.length;

        field.form.elements[i].focus();

        return false;

             } 

      else

    return true;

      }

function restrictChar(field, event)

      {

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

               var keyCode = event.keyCode ? event.keyCode : event.which ? event.which : event.charCode;          

       if (charCode == 39)

    {

        return false;

        }

    if (keyCode == 13) {

        var i;

        for (i = 0; i < field.form.elements.length; i++)

        if (field == field.form.elements[i])

          break;

        i = (i + 1) % field.form.elements.length;

        field.form.elements[i].focus();

        return false;

             } 

      else

    return true;

      }