# 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. ![](https://3396288764-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LDBWrdKcsIL5-tSGnv_%2F-LEA1Yr0adOan7rR4c06%2F-LEA1cFC_6VPyFMpbzWB%2FScreen%20Shot%202018-06-04%20at%207.13.31%20PM.png?alt=media\&token=4a382694-6b63-4f4d-a23a-3cd6c21b2e1b) ### **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. ![](https://3396288764-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LDBWrdKcsIL5-tSGnv_%2F-LEA1Yr0adOan7rR4c06%2F-LEA1e55AqEvPApoFGX0%2FScreen%20Shot%202018-06-04%20at%207.13.44%20PM.png?alt=media\&token=7e595339-2fa1-4593-8c53-e069e88987c0)