der input integer tag error salesforce

[Sindhuja]

Hi All

Could any one tell me the steps to call the cert in Apex to call the web service.

As in my Apex code i have called something like 

clientcert ='MXMXMMXMX'

and while calling i am getting this error message.

Pls advice

[Jia Hu]

You can add your Client Certificate in Apex like,
HttpRequest req = new HttpRequest();
req.setEndpoint('https://xxx:443');
req.setMethod('GET');
req.setClientCertificateName('SFDCClientCA');
............

Doc,
http://www.salesforce.com/us/developer/docs/apexcode/Content/apex_callouts_client_certs.htm