` Tags in your form. For sensitive data, such as the credit card number, expiration date and CVN number, use a `div` tag instead of an `input` field in your form. For example, change the following: ``` ``` to this: ```

``` 2. Include `vindicia.js` on your checkout page. ``` ``` There is no JQuery or other JavaScript framework requirement, but Vindicia recommends that you include `vindicia.js` after you include the framework file.This will instantiate an object called `vindicia`. 3. Call `vindicia.setup()` with options. Call the `vindicia.setup()` method to initialize the Hosted Fields on your checkout form. The`vindicia.setup()`call will take over the submit event in your form. To do validation you must pass in some options to the `setup()` method. ``` ``` These three steps will cause a redirect to a Success or Error page after form submission. If you want full Ajax control over this form, see the section [Using Hosted Fields with Ajax onSubmitCompleteEvent](Using_Hosted_Fields_with#). ## Example: Initializing Hosted Fields This JavaScript example uses all the optional features of the `vindicia.setup()` method for HOA with browser redirect. It initializes the Hosted Fields on the checkout form. The [Using Hosted Fields with Ajax onSubmitCompleteEvent](Using_Hosted_Fields_with#) provides a complete Ajax solution. ``` ``` The function `merchantValidate(theForm)` is a custom function, to be written by you. **Parent topic:**[Implementing HOA with Hosted Fields](../topics/Implementing_HOA_with_Ho) This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.