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496 lines
16 KiB
JavaScript
496 lines
16 KiB
JavaScript
/*
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SortTable
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version 2
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7th April 2007
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Stuart Langridge, http://www.kryogenix.org/code/browser/sorttable/
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Instructions:
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Download this file
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Add <script src="sorttable.js"></script> to your HTML
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Add class="sortable" to any table you'd like to make sortable
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Click on the headers to sort
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Thanks to many, many people for contributions and suggestions.
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Licenced as X11: http://www.kryogenix.org/code/browser/licence.html
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This basically means: do what you want with it.
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*/
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var stIsIE = /*@cc_on!@*/false;
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sorttable = {
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init: function() {
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// quit if this function has already been called
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if (arguments.callee.done) return;
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// flag this function so we don't do the same thing twice
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arguments.callee.done = true;
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// kill the timer
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if (_timer) clearInterval(_timer);
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if (!document.createElement || !document.getElementsByTagName) return;
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sorttable.DATE_RE = /^(\d\d?)[\/\.-](\d\d?)[\/\.-]((\d\d)?\d\d)$/;
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forEach(document.getElementsByTagName('table'), function(table) {
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if (table.className.search(/\bsortable\b/) != -1) {
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sorttable.makeSortable(table);
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}
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});
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},
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makeSortable: function(table) {
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if (table.getElementsByTagName('thead').length == 0) {
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// table doesn't have a tHead. Since it should have, create one and
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// put the first table row in it.
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the = document.createElement('thead');
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the.appendChild(table.rows[0]);
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table.insertBefore(the,table.firstChild);
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}
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// Safari doesn't support table.tHead, sigh
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if (table.tHead == null) table.tHead = table.getElementsByTagName('thead')[0];
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if (table.tHead.rows.length != 1) return; // can't cope with two header rows
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// Sorttable v1 put rows with a class of "sortbottom" at the bottom (as
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// "total" rows, for example). This is B&R, since what you're supposed
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// to do is put them in a tfoot. So, if there are sortbottom rows,
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// for backwards compatibility, move them to tfoot (creating it if needed).
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sortbottomrows = [];
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for (var i=0; i<table.rows.length; i++) {
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if (table.rows[i].className.search(/\bsortbottom\b/) != -1) {
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sortbottomrows[sortbottomrows.length] = table.rows[i];
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}
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}
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if (sortbottomrows) {
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if (table.tFoot == null) {
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// table doesn't have a tfoot. Create one.
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tfo = document.createElement('tfoot');
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table.appendChild(tfo);
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}
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for (var i=0; i<sortbottomrows.length; i++) {
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tfo.appendChild(sortbottomrows[i]);
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}
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delete sortbottomrows;
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}
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// work through each column and calculate its type
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headrow = table.tHead.rows[0].cells;
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for (var i=0; i<headrow.length; i++) {
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// manually override the type with a sorttable_type attribute
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if (!headrow[i].className.match(/\bsorttable_nosort\b/)) { // skip this col
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mtch = headrow[i].className.match(/\bsorttable_([a-z0-9]+)\b/);
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if (mtch) { override = mtch[1]; }
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if (mtch && typeof sorttable["sort_"+override] == 'function') {
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headrow[i].sorttable_sortfunction = sorttable["sort_"+override];
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} else {
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headrow[i].sorttable_sortfunction = sorttable.guessType(table,i);
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}
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// make it clickable to sort
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headrow[i].sorttable_columnindex = i;
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headrow[i].sorttable_tbody = table.tBodies[0];
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dean_addEvent(headrow[i],"click", sorttable.innerSortFunction = function(e) {
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if (this.className.search(/\bsorttable_sorted\b/) != -1) {
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// if we're already sorted by this column, just
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// reverse the table, which is quicker
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sorttable.reverse(this.sorttable_tbody);
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this.className = this.className.replace('sorttable_sorted',
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'sorttable_sorted_reverse');
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this.removeChild(document.getElementById('sorttable_sortfwdind'));
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sortrevind = document.createElement('span');
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sortrevind.id = "sorttable_sortrevind";
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sortrevind.innerHTML = stIsIE ? ' <font face="webdings">5</font>' : ' ▴';
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this.appendChild(sortrevind);
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return;
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}
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if (this.className.search(/\bsorttable_sorted_reverse\b/) != -1) {
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// if we're already sorted by this column in reverse, just
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// re-reverse the table, which is quicker
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sorttable.reverse(this.sorttable_tbody);
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this.className = this.className.replace('sorttable_sorted_reverse',
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'sorttable_sorted');
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this.removeChild(document.getElementById('sorttable_sortrevind'));
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sortfwdind = document.createElement('span');
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sortfwdind.id = "sorttable_sortfwdind";
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sortfwdind.innerHTML = stIsIE ? ' <font face="webdings">6</font>' : ' ▾';
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this.appendChild(sortfwdind);
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return;
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}
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// remove sorttable_sorted classes
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theadrow = this.parentNode;
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forEach(theadrow.childNodes, function(cell) {
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if (cell.nodeType == 1) { // an element
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cell.className = cell.className.replace('sorttable_sorted_reverse','');
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cell.className = cell.className.replace('sorttable_sorted','');
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}
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});
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sortfwdind = document.getElementById('sorttable_sortfwdind');
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if (sortfwdind) { sortfwdind.parentNode.removeChild(sortfwdind); }
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sortrevind = document.getElementById('sorttable_sortrevind');
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if (sortrevind) { sortrevind.parentNode.removeChild(sortrevind); }
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this.className += ' sorttable_sorted';
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sortfwdind = document.createElement('span');
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sortfwdind.id = "sorttable_sortfwdind";
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sortfwdind.innerHTML = stIsIE ? ' <font face="webdings">6</font>' : ' ▾';
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this.appendChild(sortfwdind);
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// build an array to sort. This is a Schwartzian transform thing,
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// i.e., we "decorate" each row with the actual sort key,
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// sort based on the sort keys, and then put the rows back in order
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// which is a lot faster because you only do getInnerText once per row
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row_array = [];
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col = this.sorttable_columnindex;
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rows = this.sorttable_tbody.rows;
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for (var j=0; j<rows.length; j++) {
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row_array[row_array.length] = [sorttable.getInnerText(rows[j].cells[col]), rows[j]];
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}
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/* If you want a stable sort, uncomment the following line */
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//sorttable.shaker_sort(row_array, this.sorttable_sortfunction);
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/* and comment out this one */
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row_array.sort(this.sorttable_sortfunction);
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tb = this.sorttable_tbody;
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for (var j=0; j<row_array.length; j++) {
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tb.appendChild(row_array[j][1]);
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}
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delete row_array;
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});
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}
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}
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},
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guessType: function(table, column) {
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// guess the type of a column based on its first non-blank row
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sortfn = sorttable.sort_alpha;
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for (var i=0; i<table.tBodies[0].rows.length; i++) {
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text = sorttable.getInnerText(table.tBodies[0].rows[i].cells[column]);
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if (text != '') {
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if (text.match(/^-?[<5B>$<24>]?[\d,.]+%?$/)) {
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return sorttable.sort_numeric;
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}
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// check for a date: dd/mm/yyyy or dd/mm/yy
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// can have / or . or - as separator
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// can be mm/dd as well
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possdate = text.match(sorttable.DATE_RE)
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if (possdate) {
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// looks like a date
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first = parseInt(possdate[1]);
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second = parseInt(possdate[2]);
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if (first > 12) {
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// definitely dd/mm
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return sorttable.sort_ddmm;
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} else if (second > 12) {
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return sorttable.sort_mmdd;
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} else {
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// looks like a date, but we can't tell which, so assume
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// that it's dd/mm (English imperialism!) and keep looking
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sortfn = sorttable.sort_ddmm;
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}
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}
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}
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}
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return sortfn;
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},
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getInnerText: function(node) {
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// gets the text we want to use for sorting for a cell.
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// strips leading and trailing whitespace.
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// this is *not* a generic getInnerText function; it's special to sorttable.
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// for example, you can override the cell text with a customkey attribute.
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// it also gets .value for <input> fields.
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if (!node) return "";
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hasInputs = (typeof node.getElementsByTagName == 'function') &&
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node.getElementsByTagName('input').length;
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if (node.getAttribute("sorttable_customkey") != null) {
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return node.getAttribute("sorttable_customkey");
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}
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else if (typeof node.textContent != 'undefined' && !hasInputs) {
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return node.textContent.replace(/^\s+|\s+$/g, '');
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}
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else if (typeof node.innerText != 'undefined' && !hasInputs) {
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return node.innerText.replace(/^\s+|\s+$/g, '');
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}
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else if (typeof node.text != 'undefined' && !hasInputs) {
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return node.text.replace(/^\s+|\s+$/g, '');
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}
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else {
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switch (node.nodeType) {
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case 3:
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if (node.nodeName.toLowerCase() == 'input') {
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return node.value.replace(/^\s+|\s+$/g, '');
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}
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case 4:
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return node.nodeValue.replace(/^\s+|\s+$/g, '');
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break;
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case 1:
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case 11:
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var innerText = '';
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for (var i = 0; i < node.childNodes.length; i++) {
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innerText += sorttable.getInnerText(node.childNodes[i]);
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}
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return innerText.replace(/^\s+|\s+$/g, '');
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break;
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default:
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return '';
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}
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}
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},
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reverse: function(tbody) {
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// reverse the rows in a tbody
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newrows = [];
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for (var i=0; i<tbody.rows.length; i++) {
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newrows[newrows.length] = tbody.rows[i];
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}
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for (var i=newrows.length-1; i>=0; i--) {
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tbody.appendChild(newrows[i]);
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}
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delete newrows;
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},
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/* sort functions
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each sort function takes two parameters, a and b
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you are comparing a[0] and b[0] */
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sort_numeric: function(a,b) {
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aa = parseFloat(a[0].replace(/[^0-9.-]/g,''));
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if (isNaN(aa)) aa = 0;
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bb = parseFloat(b[0].replace(/[^0-9.-]/g,''));
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if (isNaN(bb)) bb = 0;
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return aa-bb;
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},
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sort_alpha: function(a,b) {
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if (a[0]==b[0]) return 0;
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if (a[0]<b[0]) return -1;
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return 1;
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},
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sort_ddmm: function(a,b) {
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mtch = a[0].match(sorttable.DATE_RE);
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y = mtch[3]; m = mtch[2]; d = mtch[1];
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if (m.length == 1) m = '0'+m;
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if (d.length == 1) d = '0'+d;
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dt1 = y+m+d;
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mtch = b[0].match(sorttable.DATE_RE);
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y = mtch[3]; m = mtch[2]; d = mtch[1];
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if (m.length == 1) m = '0'+m;
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if (d.length == 1) d = '0'+d;
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dt2 = y+m+d;
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if (dt1==dt2) return 0;
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if (dt1<dt2) return -1;
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return 1;
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},
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sort_mmdd: function(a,b) {
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mtch = a[0].match(sorttable.DATE_RE);
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y = mtch[3]; d = mtch[2]; m = mtch[1];
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if (m.length == 1) m = '0'+m;
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if (d.length == 1) d = '0'+d;
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dt1 = y+m+d;
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mtch = b[0].match(sorttable.DATE_RE);
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y = mtch[3]; d = mtch[2]; m = mtch[1];
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if (m.length == 1) m = '0'+m;
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if (d.length == 1) d = '0'+d;
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dt2 = y+m+d;
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if (dt1==dt2) return 0;
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if (dt1<dt2) return -1;
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return 1;
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},
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shaker_sort: function(list, comp_func) {
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// A stable sort function to allow multi-level sorting of data
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// see: http://en.wikipedia.org/wiki/Cocktail_sort
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// thanks to Joseph Nahmias
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var b = 0;
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var t = list.length - 1;
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var swap = true;
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while(swap) {
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swap = false;
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for(var i = b; i < t; ++i) {
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if ( comp_func(list[i], list[i+1]) > 0 ) {
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var q = list[i]; list[i] = list[i+1]; list[i+1] = q;
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swap = true;
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}
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} // for
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t--;
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if (!swap) break;
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for(var i = t; i > b; --i) {
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if ( comp_func(list[i], list[i-1]) < 0 ) {
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var q = list[i]; list[i] = list[i-1]; list[i-1] = q;
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swap = true;
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}
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} // for
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b++;
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} // while(swap)
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}
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}
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/* ******************************************************************
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Supporting functions: bundled here to avoid depending on a library
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****************************************************************** */
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// Dean Edwards/Matthias Miller/John Resig
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/* for Mozilla/Opera9 */
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if (document.addEventListener) {
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document.addEventListener("DOMContentLoaded", sorttable.init, false);
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}
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/* for Internet Explorer */
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/*@cc_on @*/
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/*@if (@_win32)
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document.write("<script id=__ie_onload defer src=javascript:void(0)><\/script>");
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var script = document.getElementById("__ie_onload");
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script.onreadystatechange = function() {
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if (this.readyState == "complete") {
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sorttable.init(); // call the onload handler
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}
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};
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/*@end @*/
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/* for Safari */
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if (/WebKit/i.test(navigator.userAgent)) { // sniff
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var _timer = setInterval(function() {
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if (/loaded|complete/.test(document.readyState)) {
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sorttable.init(); // call the onload handler
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}
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}, 10);
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}
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/* for other browsers */
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window.onload = sorttable.init;
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// written by Dean Edwards, 2005
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// with input from Tino Zijdel, Matthias Miller, Diego Perini
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// http://dean.edwards.name/weblog/2005/10/add-event/
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function dean_addEvent(element, type, handler) {
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if (element.addEventListener) {
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element.addEventListener(type, handler, false);
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} else {
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// assign each event handler a unique ID
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if (!handler.$$guid) handler.$$guid = dean_addEvent.guid++;
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// create a hash table of event types for the element
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if (!element.events) element.events = {};
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// create a hash table of event handlers for each element/event pair
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var handlers = element.events[type];
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if (!handlers) {
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handlers = element.events[type] = {};
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// store the existing event handler (if there is one)
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if (element["on" + type]) {
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handlers[0] = element["on" + type];
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}
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}
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// store the event handler in the hash table
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handlers[handler.$$guid] = handler;
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// assign a global event handler to do all the work
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element["on" + type] = handleEvent;
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}
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};
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// a counter used to create unique IDs
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dean_addEvent.guid = 1;
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function removeEvent(element, type, handler) {
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if (element.removeEventListener) {
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element.removeEventListener(type, handler, false);
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} else {
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// delete the event handler from the hash table
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if (element.events && element.events[type]) {
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delete element.events[type][handler.$$guid];
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}
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}
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};
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function handleEvent(event) {
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var returnValue = true;
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// grab the event object (IE uses a global event object)
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event = event || fixEvent(((this.ownerDocument || this.document || this).parentWindow || window).event);
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// get a reference to the hash table of event handlers
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var handlers = this.events[event.type];
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// execute each event handler
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for (var i in handlers) {
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this.$$handleEvent = handlers[i];
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if (this.$$handleEvent(event) === false) {
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returnValue = false;
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}
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}
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return returnValue;
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};
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function fixEvent(event) {
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// add W3C standard event methods
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event.preventDefault = fixEvent.preventDefault;
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event.stopPropagation = fixEvent.stopPropagation;
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return event;
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};
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fixEvent.preventDefault = function() {
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this.returnValue = false;
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};
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fixEvent.stopPropagation = function() {
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this.cancelBubble = true;
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}
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// Dean's forEach: http://dean.edwards.name/base/forEach.js
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/*
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forEach, version 1.0
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Copyright 2006, Dean Edwards
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License: http://www.opensource.org/licenses/mit-license.php
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*/
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// array-like enumeration
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if (!Array.forEach) { // mozilla already supports this
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Array.forEach = function(array, block, context) {
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for (var i = 0; i < array.length; i++) {
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block.call(context, array[i], i, array);
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}
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};
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}
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// generic enumeration
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Function.prototype.forEach = function(object, block, context) {
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for (var key in object) {
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if (typeof this.prototype[key] == "undefined") {
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block.call(context, object[key], key, object);
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}
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}
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};
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// character enumeration
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String.forEach = function(string, block, context) {
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Array.forEach(string.split(""), function(chr, index) {
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block.call(context, chr, index, string);
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});
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};
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// globally resolve forEach enumeration
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var forEach = function(object, block, context) {
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if (object) {
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var resolve = Object; // default
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if (object instanceof Function) {
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// functions have a "length" property
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resolve = Function;
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} else if (object.forEach instanceof Function) {
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// the object implements a custom forEach method so use that
|
||
object.forEach(block, context);
|
||
return;
|
||
} else if (typeof object == "string") {
|
||
// the object is a string
|
||
resolve = String;
|
||
} else if (typeof object.length == "number") {
|
||
// the object is array-like
|
||
resolve = Array;
|
||
}
|
||
resolve.forEach(object, block, context);
|
||
}
|
||
};
|
||
|