1 // Used with under license grant from http://kryogenix.org/code/browser/sorttable/
2 // Credit for this code goes to Stuart Langridge - http://kryogenix.org/contact
4 addEvent(window, "load", sortables_init);
8 function sortables_init() {
9 // Find all tables with class sortable and make them sortable
10 if (!document.getElementsByTagName) return;
11 tbls = document.getElementsByTagName("table");
12 for (ti=0;ti<tbls.length;ti++) {
14 if (((' '+thisTbl.className+' ').indexOf("sortable") != -1) && (thisTbl.id)) {
15 //initTable(thisTbl.id);
16 ts_makeSortable(thisTbl);
21 function ts_makeSortable(table) {
22 if (table.rows && table.rows.length > 0) {
23 var firstRow = table.rows[0];
25 if (!firstRow) return;
27 // We have a first row: assume it's the header, and make its contents clickable links
28 for (var i=0;i<firstRow.cells.length;i++) {
29 var cell = firstRow.cells[i];
30 var txt = ts_getInnerText(cell);
31 cell.innerHTML = '<a href="#" class="sortheader" '+
32 'onclick="ts_resortTable(this, '+i+');return false;">' +
33 txt+'<span class="sortarrow"> </span></a>';
37 function ts_getInnerText(el) {
38 if (typeof el == "string") return el;
39 if (typeof el == "undefined") { return el };
40 if (el.innerText) return el.innerText; //Not needed but it is faster
43 var cs = el.childNodes;
45 for (var i = 0; i < l; i++) {
46 switch (cs[i].nodeType) {
47 case 1: //ELEMENT_NODE
48 str += ts_getInnerText(cs[i]);
51 str += cs[i].nodeValue;
58 function ts_resortTable(lnk,clid) {
61 for (var ci=0;ci<lnk.childNodes.length;ci++) {
62 if (lnk.childNodes[ci].tagName && lnk.childNodes[ci].tagName.toLowerCase() == 'span') span = lnk.childNodes[ci];
64 var spantext = ts_getInnerText(span);
65 var td = lnk.parentNode;
66 var column = clid || td.cellIndex;
67 var table = getParent(td,'TABLE');
69 // Work out a type for the column
70 if (table.rows.length <= 1) return;
71 var itm = ts_getInnerText(table.rows[1].cells[column]);
72 sortfn = ts_sort_caseinsensitive;
73 if (itm.match(/^\d\d[\/-]\d\d[\/-]\d\d\d\d$/)) sortfn = ts_sort_date;
74 if (itm.match(/^\d\d[\/-]\d\d[\/-]\d\d$/)) sortfn = ts_sort_date;
75 if (itm.match(/^[£$]/)) sortfn = ts_sort_currency;
76 if (itm.match(/^[\d\.]+$/)) sortfn = ts_sort_numeric;
77 SORT_COLUMN_INDEX = column;
78 var firstRow = new Array();
79 var newRows = new Array();
80 for (i=0;i<table.rows[0].length;i++) { firstRow[i] = table.rows[0][i]; }
81 for (j=1;j<table.rows.length;j++) { newRows[j-1] = table.rows[j]; }
85 if (span.getAttribute("sortdir") == 'down') {
86 ARROW = ' ↑';
88 span.setAttribute('sortdir','up');
90 ARROW = ' ↓';
91 span.setAttribute('sortdir','down');
94 // We appendChild rows that already exist to the tbody, so it moves them rather than creating new ones
95 // don't do sortbottom rows
96 for (i=0;i<newRows.length;i++) { if (!newRows[i].className || (newRows[i].className && (newRows[i].className.indexOf('sortbottom') == -1))) table.tBodies[0].appendChild(newRows[i]);}
97 // do sortbottom rows only
98 for (i=0;i<newRows.length;i++) { if (newRows[i].className && (newRows[i].className.indexOf('sortbottom') != -1)) table.tBodies[0].appendChild(newRows[i]);}
100 // Delete any other arrows there may be showing
101 var allspans = document.getElementsByTagName("span");
102 for (var ci=0;ci<allspans.length;ci++) {
103 if (allspans[ci].className == 'sortarrow') {
104 if (getParent(allspans[ci],"table") == getParent(lnk,"table")) { // in the same table as us?
105 allspans[ci].innerHTML = ' ';
110 span.innerHTML = ARROW;
113 function getParent(el, pTagName) {
114 if (el == null) return null;
115 else if (el.nodeType == 1 && el.tagName.toLowerCase() == pTagName.toLowerCase()) // Gecko bug, supposed to be uppercase
118 return getParent(el.parentNode, pTagName);
120 function ts_sort_date(a,b) {
121 // y2k notes: two digit years less than 50 are treated as 20XX, greater than 50 are treated as 19XX
122 aa = ts_getInnerText(a.cells[SORT_COLUMN_INDEX]);
123 bb = ts_getInnerText(b.cells[SORT_COLUMN_INDEX]);
124 if (aa.length == 10) {
125 dt1 = aa.substr(6,4)+aa.substr(3,2)+aa.substr(0,2);
128 if (parseInt(yr) < 50) { yr = '20'+yr; } else { yr = '19'+yr; }
129 dt1 = yr+aa.substr(3,2)+aa.substr(0,2);
131 if (bb.length == 10) {
132 dt2 = bb.substr(6,4)+bb.substr(3,2)+bb.substr(0,2);
135 if (parseInt(yr) < 50) { yr = '20'+yr; } else { yr = '19'+yr; }
136 dt2 = yr+bb.substr(3,2)+bb.substr(0,2);
138 if (dt1==dt2) return 0;
139 if (dt1<dt2) return -1;
143 function ts_sort_currency(a,b) {
144 aa = ts_getInnerText(a.cells[SORT_COLUMN_INDEX]).replace(/[^0-9.]/g,'');
145 bb = ts_getInnerText(b.cells[SORT_COLUMN_INDEX]).replace(/[^0-9.]/g,'');
146 return parseFloat(aa) - parseFloat(bb);
149 function ts_sort_numeric(a,b) {
150 aa = parseFloat(ts_getInnerText(a.cells[SORT_COLUMN_INDEX]));
151 if (isNaN(aa)) aa = 0;
152 bb = parseFloat(ts_getInnerText(b.cells[SORT_COLUMN_INDEX]));
153 if (isNaN(bb)) bb = 0;
157 function ts_sort_caseinsensitive(a,b) {
158 aa = ts_getInnerText(a.cells[SORT_COLUMN_INDEX]).toLowerCase();
159 bb = ts_getInnerText(b.cells[SORT_COLUMN_INDEX]).toLowerCase();
160 if (aa==bb) return 0;
161 if (aa<bb) return -1;
165 function ts_sort_default(a,b) {
166 aa = ts_getInnerText(a.cells[SORT_COLUMN_INDEX]);
167 bb = ts_getInnerText(b.cells[SORT_COLUMN_INDEX]);
168 if (aa==bb) return 0;
169 if (aa<bb) return -1;
174 function addEvent(elm, evType, fn, useCapture)
175 // addEvent and removeEvent
176 // cross-browser event handling for IE5+, NS6 and Mozilla
179 if (elm.addEventListener){
180 elm.addEventListener(evType, fn, useCapture);
182 } else if (elm.attachEvent){
183 var r = elm.attachEvent("on"+evType, fn);
186 alert("Handler could not be removed");