How change a default parameters value in jQuery function?

Question

I have not experience in jQuery. I use validation plugin. But I should change position of error message baloon. Here is default parameters for validation function.

    a.validationEngine = { defaults: { validationEventTrigger: "blur", scroll: true, 
    focusFirstField: true, promptPosition: "topRight", bindMethod: "bind", 
    inlineAjax: false, ajaxFormValidation: false, ajaxFormValidationURL: false, 
    onAjaxFormComplete: a.noop, onBeforeAjaxFormValidation: a.noop, 
    onValidationComplete: false, isOverflown: false, overflownDIV: "",
    binded: false, showArrow: true, isError: false,
    ajaxValidCache: {}, autoPositionUpdate: false, InvalidFields: [], 
    onSuccess: false, onFailure: false } }

I want to change promptPosition: "topRight" to promptPosition: "bottomLeft". When I change that parameter's value at the top function, it works.

In page I want to add promptPosition: "bottomLeft" parameter to following function. How can I do it?

<script>
 jQuery(document).ready(function () {
     jQuery('#userSignInForm').validationEngine('init');
        jQuery('#signInButton').click(function () {
            jQuery('#userSignInForm .loading').animate({ opacity: 1 }, 850);
            if (jQuery('#userSignInForm').validationEngine('validate')) {
                jQuery.post('/Profile/SignIn', {
                    UserName: jQuery('#UserName').val(),
                    Password: jQuery('#Password').val(),
                    formname: 'user_SignIn_Form',
                    formtype: 'userSignInF'
                }, function () {
                    jQuery('#userSignInForm .loading').hide();
                });
                return false;
            } else {
                return false;
            }
        });
    });
</script>

Answer 1

Send the parameters on initialisation :

jQuery('#userSignInForm').validationEngine('init', {
   promptPosition: "bottomLeft"
});

instead of

jQuery('#userSignInForm').validationEngine('init');

should do the trick.

Docs for jQuery Validation engine initialisation here