Title: js_validation_function: "custom_function_name"
Last modified: August 22, 2016

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# js_validation_function: "custom_function_name"

 *  [bjl_83](https://wordpress.org/support/users/bjl_83/)
 * (@bjl_83)
 * [11 years, 3 months ago](https://wordpress.org/support/topic/js_validation_function-custom_function_name/)
 * Hi, I’m trying to create a function in javascript to validate form fields, for
   that fields can not send empty. But when I refresh the page, change the id of
   the form.
 * How I can then create the function? I need the id of the form to check the fields.
 * Thank You. A greeting.
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 * 0 replies
 * 1 participant
 * Last reply from: [bjl_83](https://wordpress.org/support/users/bjl_83/)
 * Last activity: [11 years, 3 months ago](https://wordpress.org/support/topic/js_validation_function-custom_function_name/)
 * Status: not resolved