<![CDATA[
<HTML>
<HEAD>
<SCRIPT LANGUAGE="JavaScript">
<!--
function checkNumber(number) {
if (number.indexOf("-")!=4||number.indexOf("-",5)!=9||number.indexOf("-",10)!=14)
{
alert("not correct card number format");
return false;
}
}
//-->
</SCRIPT>
</HEAD>
<BODY>
<PRE>
</PRE>
<FORM NAME="data">
Please enter your credit.card details:<BR>
<INPUT TYPE="text" NAME="name" VALUE="First M. Last" SIZE=40><BR>
<INPUT TYPE="text" NAME="cardNumber" VALUE="xxxx-xxxx-xxxx-xxxx" SIZE=19 onChange="checkNumber(this.value)"><BR>
<INPUT TYPE="text" NAME="expires" VALUE="mmm-yy" SIZE=6><BR>
<INPUT TYPE="radio" NAME="cardType" VALUE="MC">MC
<INPUT TYPE="radio" NAME="cardType" VALUE="VA">VISA
<INPUT TYPE="radio" NAME="cardType" VALUE="DR">Discover
</FORM>
</BODY>
</HTML>
]]>