function previous(){ new_page = parseInt($('#current_page').val()) - 1; //if there is an item before the current active link run the function if($('.active_page').prev('.page_link').length==true){ go_to_page(new_page); } } function next(){ new_page = parseInt($('#current_page').val()) + 1; //if there is an item after the current active link run the function if($('.active_page').next('.page_link').length==true){ go_to_page(new_page); } } function go_to_page(page_num){ //get the number of items shown per page var show_per_page = parseInt($('#show_per_page').val()); //get the element number where to start the slice from start_from = page_num * show_per_page; //get the element number where to end the slice end_on = start_from + show_per_page; //hide all children elements of ayah_image div, get specific items and show them $('#ayah_image').children().css('display', 'none').slice(start_from, end_on).css('display', 'block'); /*get the page link that has longdesc attribute of the current page and add active_page class to it and remove that class from previously active page link*/ $('.page_link[longdesc=' + page_num +']').addClass('active_page').siblings('.active_page').removeClass('active_page'); //update the current page input field $('#current_page').val(page_num); } $( document ).ready(function() { var show_per_page = 1; //getting the amount of elements inside ayah_image div var number_of_items = $('#ayah_image').children().size(); //calculate the number of pages we are going to have var number_of_pages = Math.ceil(number_of_items/show_per_page); //set the value of our hidden input fields $('#current_page').val(0); $('#show_per_page').val(show_per_page); //now when we got all we need for the navigation let's make it ' /* what are we going to have in the navigation? - link to previous page - links to specific pages - link to next page */ var navigation_html = '<a class="previous_link" href="java<!-- no -->script:previous();">Prev</a>'; var current_link = 0; while(number_of_pages > current_link){ navigation_html += '<a class="page_link" style="height:20px; width:30px;" href="java<!-- no -->script:go_to_page(' + current_link +')" longdesc="' + current_link +'">'+ (current_link + 1) +'</a>'; current_link++; } navigation_html += '<a class="next_link" href="java<!-- no -->script:next();">Next</a>'; $('#page_navigation').html(navigation_html); //add active_page class to the first page link $('#page_navigation .page_link:first').addClass('active_page'); $('#ayah_image').children().css('display', 'none'); //and show the first n (show_per_page) elements $('#ayah_image').children().slice(0, show_per_page).css('display', 'block'); });
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