/*
 paginate table object v1.1 by frequency-decoder.com

 Released under a creative commons Attribution-ShareAlike 2.5 license (http://creativecommons.org/licenses/by-sa/2.5/)

 Please credit frequency decoder in any derivative work - thanks

 You are free:

 * to copy, distribute, display, and perform the work
 * to make derivative works
 * to make commercial use of the work

 Under the following conditions:

 by Attribution.
 --------------
 You must attribute the work in the manner specified by the author or licensor.

 sa
 --
 Share Alike. If you alter, transform, or build upon this work, you may distribute the resulting work only under a license identical to this one.

 * For any reuse or distribution, you must make clear to others the license terms of this work.
 * Any of these conditions can be waived if you get permission from the copyright holder.
*/

/* The sortCompleteCallback does nothing but call the pagination object below, passing in the table id */
function sortCompleteCallback(tableId) {
 tablePaginater.showPage(tableId);
}

/* This is the JS object that paginates the table (N.B: Tables do not have to be sortable to use this object) */
var tablePaginater = {
 tableInfo: {},

 init: function() {
 var tables = document.getElementsByTagName('table');

 for(var t = 0, tbl; tbl = tables[t]; t++) {
 if(!tbl.id || tbl.id == "" || tbl.className.search(/paginate-([0-9]+)/) == -1) continue;

 tablePaginater.tableInfo[tbl.id] = {
 rowsPerPage:tbl.className.match(/paginate-([0-9]+)/)[1],
 currentPage:0
 };

 tablePaginater.showPage(tbl.id, 0);
 tablePaginater.createPageinationList(tbl.id);
 };
 },

 addClass: function(e,c) {
 if(new RegExp("(^|\\s)" + c + "(\\s|$)").test(e.className)) return;
 e.className += ( e.className ? " " : "" ) + c;
 },

 removeClass: function(e,c) {
 e.className = !c ? "" : e.className.replace(new RegExp("(^|\\s*\\b[^-])"+c+"($|\\b(?=[^-]))", "g"), "");
 },

 /* I shall leave it as an excercise for the reader to create the next|prev links commonly
 found within such pagination systems. I'm just creating a simple linked list(s). */
 createPageinationList: function(tableId) {
 // Get the table
 var tbl = document.getElementById(tableId);

 // Create the UL
 var ul = document.createElement("ul");
 ul.className = "tablePaginater";
 ul.id = "paginateList-" + tableId;

 // clone the UL
 var ulc = ul.cloneNode(true);
 ulc.id = "paginateList-" + tableId + "-clone";

 var rows = tablePaginater.getTableRows(tableId);
 var total = rows.length;
 var rowsPerPage
 var pages = Math.max(1, Math.ceil(total / tablePaginater.tableInfo[tableId].rowsPerPage));

 // Create the li & a tags to clone within the loop
 var li = document.createElement("li");
 var a = document.createElement("a");
 a.href = "#";

 var lic, ac;

 // For each page, create a pagination button
 for(var i = 0; i < pages; i++) {
 lic = li.cloneNode(false);
 ac = a.cloneNode(true);
 ac.title = "View page " + (i + 1);
 ac.appendChild(document.createTextNode(i+1));
 lic.onclick = a.onclick = tablePaginater.show;
 lic.appendChild(ac);

 if(i == 0) lic.className = "currentPage";

 ul.appendChild(lic);

 lic = lic.cloneNode(true);
 lic.onclick = lic.getElementsByTagName("a")[0].onclick = tablePaginater.show;

 ulc.appendChild(lic);
 };

 // Add the list below the table
 if(tbl.nextSibling) {
 tbl.parentNode.insertBefore(ul, tbl.nextSibling);
 } else {
 tbl.parentNode.appendChild(ul);
 };

 // Add another list above the table
 tbl.parentNode.insertBefore(ulc, tbl);
 },

 getTableRows: function(tableId) {
 var rows = [];
 var tbl = document.getElementById(tableId);

 var tbody = tbl.getElementsByTagName('tbody');

 if(tbody && tbody.length) {
 tbody = tbody[0];
 rows = tbody.getElementsByTagName('tr');
 } else {
 var tmp = tbl.getElementsByTagName('tr');
 for(var i = tmp.length; i--;) {
 if(tmp[i].getElementsByTagName('th') || tmp[i].parentNode.tagName == "TFOOT") continue;
 rows[rows.length] = tmp[i];
 };
 };
 return rows;
 },

 showPage: function(tableId, page) {
 if(!(tableId in tablePaginater.tableInfo)) return;

 var tbl = document.getElementById(tableId);
 var rowsPerPage = tablePaginater.tableInfo[tableId].rowsPerPage;
 var rows = tablePaginater.getTableRows(tableId);

 page = typeof page == "undefined" ? tablePaginater.tableInfo[tableId].currentPage : page;

 var min = rowsPerPage * page;
 var max = Number(min) + Number(rowsPerPage);
 var rowStyle = tbl.className.search(/rowstyle-([\S]+)/) != -1 ? tbl.className.match(/rowstyle-([\S]+)/)[1] : false;
 var cnt = 0;
 var len = rows.length;

 for(var i = 0; i < len; i++) {
 rows[i].style.display = (i >= min && i < max) ? "" : "none";
 if(rowsPerPage % 2 && rowStyle && i >= min && i < max) {
 tablePaginater.removeClass(rows[i], rowStyle);
 if(cnt++ % 2) tablePaginater.addClass(rows[i], rowStyle);
 };
 };

 tablePaginater.tableInfo[tableId].currentPage = page;
 },

 /* Event handler for the li|a click event */
 show: function(e) {
 var li = (this.tagName && this.tagName == "A") ? this.parentNode : this;
 var tableId = li.parentNode.id.replace("paginateList-", "").replace("-clone", "");
 var cnt = 0;

 while(li.previousSibling) {
 li = li.previousSibling;
 if(li.tagName && li.tagName.toLowerCase() == "li") cnt++;
 };

 tablePaginater.showPage(tableId, cnt);

 var ul = document.getElementById("paginateList-" + tableId);
 var ulc = document.getElementById("paginateList-" + tableId + "-clone");
 var i = 0;

 while(ul.childNodes[i]) {
 ul.childNodes[i].className = ulc.childNodes[i].className = i == cnt ? "currentPage" : "";
 i++;
 };

 return false;
 }
}

fdTableSort.addEvent(window, "load", tablePaginater.init);