View Full Version : Validation in javascript

Dimi Cost
04-11-2011, 10:23 AM
I must validate a textbox that is an input for credit card.I try and find this code.I would like your opinion.Thanks.


function validate()
var cardexp=/^\d{4}\s{0,}\d{4}\s{0,}\d{4}\s{0,}\d{4}$/

if (!cardexp.test(document.frmname.fldname.value))
document.number.fldname.value="Please enter your credit card number";
return false


<input type="text" size="10" maxlength="9" name="number" value="" onmouseout="return Validate()"/>

04-11-2011, 11:42 AM
Try this: http://www.evolt.org/node/24700