how to show the warning message via catalog client script

[ankit_sharma487]

i have to show

Warning Message: if request=='Remove Access'
This will revoke all your access from the group and group associated   access rights
Click OK to continue or Cancel to stay on the page

i wrote

function onChange(control, oldValue, newValue, isLoading) {

    if (isLoading || newValue == '') {

          return;

    }

var checkREMOVE=g_form.getValue('request_type');

  if(checkREMOVE=="remove")

    {

    g_form.addErrorMessage("okokok"); //here i have to show the message with oK and Cancel buttons

    }

  //Type appropriate comment here, and begin script below

}

[Shishir Srivast]

Please ignore my previous responses, i just learnt I was wrong on addErrorMessage

[Inactive_Us1474]

If you want to print the error message, use g_form.showFieldMsg('impact','Low impact not allowed with High priority','error');

Refer : GlideForm (g form) - ServiceNow Wiki

If you need with the ok and cancel button   window.confirm('Message here');

Hope this helps.