If you are using the jQuery library, then don't forget to wrap your code inside jQuery.ready() as follows: jQuery(document).ready(function( $ ){ // Your code in here }); -- If you want to link a JavaScript file that resides on another server (similar to ), then please use the "Add HTML Code" page, as this is a HTML code that links a JavaScript file. End of comment */ jQuery(document).ready(function( $ ){ jQuery('.facetwp-facet-promocion').find('.facetwp-checkbox[data-value=0]').hide(); });