https://markethive.com/js/jquery.pagination.js?v=1790137647

1/**
2 * This jQuery plugin displays pagination links inside the selected elements.
3 *
4 * @author Gabriel Birke (birke *at* d-scribe *dot* de)
5 * @version 1.2
6 * @param {int} maxentries Number of entries to paginate
7 * @param {Object} opts Several options (see README for documentation)
8 * @return {Object} jQuery Object
9 */
10jQuery.fn.pagination = function(maxentries, opts){
11	opts = jQuery.extend({
12		items_per_page:8,
13		num_display_entries:8,
14		current_page:0,
15		num_edge_entries:0,
16		link_to:"JavaScript:void(0)",
17		prev_text:"Prev",
18		next_text:"Next",
19		ellipse_text:"...",
20		prev_show_always:false,
21		next_show_always:false,
22		callback:function(){return false;}
23	},opts||{});
24	
25	return this.each(function() {
26		/**
27		 * Calculate the maximum number of pages
28		 */
29		function numPages() {
30			return Math.ceil(maxentries/opts.items_per_page);
31		}
32		
33		/**
34		 * Calculate start and end point of pagination links depending on 
35		 * current_page and num_display_entries.
36		 * @return {Array}
37		 */
38		function getInterval()  {
39			var ne_half = Math.ceil(opts.num_display_entries/2);
40			var np = numPages();
41			var upper_limit = np-opts.num_display_entries;
42			var start = current_page>ne_half?Math.max(Math.min(current_page-ne_half, upper_limit), 0):0;
43			var end = current_page>ne_half?Math.min(current_page+ne_half, np):Math.min(opts.num_display_entries, np);
44			return [start,end];
45		}
46		
47		/**
48		 * This is the event handling function for the pagination links. 
49		 * @param {int} page_id The new page number
50		 */
51		function pageSelected(page_id, evt){
52			current_page = page_id;
53			drawLinks();
54			var continuePropagation = opts.callback(page_id, panel);
55			if (!continuePropagation) {
56				if (evt.stopPropagation) {
57					evt.stopPropagation();
58				}
59				else {
60					evt.cancelBubble = true;
61				}
62			}
63			return continuePropagation;
64		}
65		
66		/**
67		 * This function inserts the pagination links into the container element
68		 */
69		function drawLinks() {
70			panel.empty();
71			var interval = getInterval();
72			var np = numPages();
73			// This helper function returns a handler function that calls pageSelected with the right page_id
74			var getClickHandler = function(page_id) {
75				return function(evt){ return pageSelected(page_id,evt); }
76			}
77			// Helper function for generating a single link (or a span tag if it's the current page)
78			var appendItem = function(page_id, appendopts){
79				page_id = page_id<0?0:(page_id<np?page_id:np-1); // Normalize page id to sane value
80				appendopts = jQuery.extend({text:page_id+1, classes:""}, appendopts||{});
81				if(page_id == current_page){
82					var lnk = jQuery("<span class='current'>"+(appendopts.text)+"</span>");
83				}
84				else
85				{
86					var lnk = jQuery("<a>"+(appendopts.text)+"</a>")
87						.bind("click", getClickHandler(page_id))
88						.attr('href', opts.link_to.replace(/__id__/,page_id));
89						
90						
91				}
92				if(appendopts.classes){lnk.addClass(appendopts.classes);}
93				panel.append(lnk);
94			}
95			// Generate "Previous"-Link
96			if(opts.prev_text && (current_page > 0 || opts.prev_show_always)){
97				appendItem(current_page-1,{text:opts.prev_text, classes:"prev"});
98			}
99			// Generate starting points
100			if (interval[0] > 0 && opts.num_edge_entries > 0)
101			{
102				var end = Math.min(opts.num_edge_entries, interval[0]);
103				for(var i=0; i<end; i++) {
104					appendItem(i);
105				}
106				if(opts.num_edge_entries < interval[0] && opts.ellipse_text)
107				{
108					jQuery("<span>"+opts.ellipse_text+"</span>").appendTo(panel);
109				}
110			}
111			// Generate interval links
112			for(var i=interval[0]; i<interval[1]; i++) {
113				appendItem(i);
114			}
115			// Generate ending points
116			if (interval[1] < np && opts.num_edge_entries > 0)
117			{
118				if(np-opts.num_edge_entries > interval[1]&& opts.ellipse_text)
119				{
120					jQuery("<span>"+opts.ellipse_text+"</span>").appendTo(panel);
121				}
122				var begin = Math.max(np-opts.num_edge_entries, interval[1]);
123				for(var i=begin; i<np; i++) {
124					appendItem(i);
125				}
126				
127			}
128			// Generate "Next"-Link
129			if(opts.next_text && (current_page < np-1 || opts.next_show_always)){
130				appendItem(current_page+1,{text:opts.next_text, classes:"next"});
131			}
132		}
133		
134		// Extract current_page from options
135		var current_page = opts.current_page;
136		// Create a sane value for maxentries and items_per_page
137		maxentries = (!maxentries || maxentries < 0)?1:maxentries;
138		opts.items_per_page = (!opts.items_per_page || opts.items_per_page < 0)?1:opts.items_per_page;
139		// Store DOM element for easy access from all inner functions
140		var panel = jQuery(this);
141		// Attach control functions to the DOM element 
142		this.selectPage = function(page_id){ pageSelected(page_id);}
143		this.prevPage = function(){ 
144			if (current_page > 0) {
145				pageSelected(current_page - 1);
146				return true;
147			}
148			else {
149				return false;

150			}
151		}
152		this.nextPage = function(){ 
153			if(current_page < numPages()-1) {
154				pageSelected(current_page+1);
155				return true;
156			}
157			else {
158				return false;
159			}
160		}
161		// When all initialisation is done, draw the links
162		drawLinks();
163        // call callback function
164        opts.callback(current_page, this);
165	});
166}