Ajax Functions for MyBB?

[prince]

here is live demo.

nulledbb.com

i have find this tut.
but i have not good knowledge about php and i cant make it fully.

post code in forum display below {$headinclude}

Code:

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<script type="text/javascript"> <!-- lang.no_new_posts = "Forum Contains No New Posts"; lang.click_mark_read = "Click to mark this forum as read"; lang.inline_edit_description = "(Click and hold to edit)"; lang.post_fetch_error = "There was an error fetching the posts."; // --> jQuery(function(){ var currentPage = 1, page, totalPages = Math.ceil( 656 / 20 ); jQuery(document).on( 'click', '.pages a', function(e){ page = jQuery( this ).attr( 'data-page' ); if( currentPage == page || page > totalPages ) return; jQuery( '.overlay' ).fadeIn().css({ 'width': jQuery( '.forumdisplay-major .pagination-top + .wrapper' ).width(), 'height': jQuery( '.forumdisplay-major .pagination-top + .wrapper' ).height() }); jQuery( '.spinner' ).fadeIn();//.css({ 'margin-top': jQuery( '.forumdisplay-major .wrapper' ).width()/2 - 50 }); jQuery.get( 'https://nulledbb.com/forumdisplayajax.php?fid={fid}&page=' + page, function(data){ jQuery( '.forumdisplay-major' ).html(data ); currentPage = page; jQuery('html,body').animate({scrollTop: 0}, 'fast'); }); e.preventDefault(); } ); }); </script> <script src=" https://nulledbb.com/assets/nulled/js/remodal.js"></script> <script src="https://cdn.nulledbb.com/jscripts/jeditable/jeditable.min.js"></script> <script type="text/javascript" src="https://cdn.nulledbb.com/jscripts/inline_edit.js?ver=1804"></script>

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goo to tamplate edit and add code in multipage_page
data-page="{$i}"

like

Code:

<a href="{$page_url}" class="pagination_page" data-page="{$i}"> {$i}</a>

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now ponint is
forumdisplayajax.php

i cant make it if anyone can make this forumdisplayajax.php so it will working perfectly