> For the complete documentation index, see [llms.txt](https://docs.pages.revox.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.pages.revox.io/form-validation.md). # Form Validation Pages is packaged with [jQuery Validation Plugin](http://jqueryvalidation.org/) which is currently the de-facto plugin for form validation. {% hint style="info" %} Please refer to [jQuery Validation Plugin Documentation](http://jqueryvalidation.org/) to learn about plugin options {% endhint %} **Step one** Include the relevant javascript files inside the ``before core template script inclusions, if it's not there already. ```markup ``` ## **Error messages** `showErrors` and `errorPlacement` functions of jQuery Validate have been overridden in Pages core. As a result, the way error messages are displayed will differ depending on the form layout style you've declared in the code ### **Standard** Standard way of showing error messages. Will appear on any form except for forms with attached groups. ![](/files/-LEA1cFC_6VPyFMpbzWB) ### **Attached** Recommended to use with Pages default form style having attached elements with `.form-group-attached` wrapper. The error messages will appear in the form of popovers. ![](/files/-LEA1e55AqEvPApoFGX0)