Restrict entering anything but numbers in a form field with javascript
javascript:
html
javascript:
<SCRIPT TYPE="text/javascript"> SCRIPT>
html
<FORM ACTION="../cgi-bin/mycgi.pl" METHOD=POST> U.S. ZIP Code: <INPUT NAME="dollar" SIZE=5 MAXLENGTH=5 onKeyPress="return numbersonly(this, event)"> <INPUT TYPE=SUBMIT VALUE="go"> FORM>