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234 lines
7.2 KiB
234 lines
7.2 KiB
//
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// Javascript clientside sorting of table data
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//
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addEvent(window, "load", sortables_init);
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var SORT_COLUMN_INDEX;
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function sortables_init()
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{
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// Find all tables with class sortable and make them sortable
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if (!document.getElementsByTagName) { alert ( "cannot" ); return; }
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tbls = document.getElementsByTagName("table");
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for (ti=0;ti<tbls.length;ti++) {
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thisTbl = tbls[ti];
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if ((' '+thisTbl.className+' ').indexOf("Sortable") != -1) {
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ts_makeSortable(thisTbl);
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}
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}
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}
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function ts_makeSortable(table) {
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if (table.rows && table.rows.length > 0) {
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var firstRow = table.rows[0];
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}
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if (!firstRow) return;
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// We have a first row: assume it's the header, and make its contents clickable links
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for (var i=0;i<firstRow.cells.length;i++) {
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var cell = firstRow.cells[i];
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var txt = ts_getInnerText(cell);
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var str_HTML = '<a href="#" onclick="ts_resortTable(this, ' + i + ');return false;" ' +
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'title="Sort by ' + txt + ' >>" >' + txt + '<span class="SortArrow"';
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// adjust the first column so it displays as selected
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if ( i==0 ) {
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cell.className = "Selected";
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str_HTML += ' sortdir="down"><img src="' + WWW_TOP + '/themes/shared/img/sorting/arrow_down.gif" alt="" />';
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}
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else str_HTML += '>';
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str_HTML += '</span></a>';
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// insert new html into cell
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cell.innerHTML = str_HTML;
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}
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}
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function ts_getInnerText(el) {
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if ( typeof el == "string") return el;
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if ( typeof el == "undefined") { return el };
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if ( el.innerText ) return el.innerText; //Not needed but it is faster
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var str = "";
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var cs = el.childNodes;
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var l = cs.length;
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for (var i = 0; i < l; i++)
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{
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switch (cs[i].nodeType)
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{
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case 1: //ELEMENT_NODE
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str += ts_getInnerText(cs[i]);
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break;
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case 3: //TEXT_NODE
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str += cs[i].nodeValue;
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break;
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}
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}
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return str;
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}
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function ts_resortTable(lnk,clid) {
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// get the span
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var span;
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for (var ci=0;ci<lnk.childNodes.length;ci++)
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{
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if (lnk.childNodes[ci].tagName && lnk.childNodes[ci].tagName.toLowerCase() == 'span') span = lnk.childNodes[ci];
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}
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var spantext = ts_getInnerText(span);
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var td = lnk.parentNode;
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var column = clid || td.cellIndex;
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var table = getParent(td,'TABLE');
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// Work out a type for the column
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if (table.rows.length <= 1) return;
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var itm = ts_getInnerText(table.rows[1].cells[column]);
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sortfn = ts_sort_caseinsensitive;
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if (itm.match(/^\d\d[\/-]\d\d[\/-]\d\d\d\d$/)) sortfn = ts_sort_date;
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if (itm.match(/^\d\d[\/-]\d\d[\/-]\d\d$/)) sortfn = ts_sort_date;
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if (itm.match(/^[£$]/)) sortfn = ts_sort_currency;
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if (itm.match(/^[\d\.]+$/)) sortfn = ts_sort_numeric;
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SORT_COLUMN_INDEX = column;
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var firstRow = new Array();
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var newRows = new Array();
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for (i=0;i<table.rows[0].length;i++) { firstRow[i] = table.rows[0][i]; }
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for (j=1;j<table.rows.length;j++) { newRows[j-1] = table.rows[j]; }
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newRows.sort(sortfn);
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// set the class of the header to "selected", but first remove any class from all columns
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for (r=0; r<table.rows[0].cells.length; r++ ) table.rows[0].cells[r].className = "";
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table.rows[0].cells[column].className = table.rows[0].cells[column].className = "Selected";
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// configures the up/down arrow
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if (span.getAttribute("sortdir") == 'down')
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{
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// ARROW = ' ↑';
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ARROW = '<img src="' + WWW_TOP + '/themes/shared/img/sorting/arrow_up.gif" />';
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newRows.reverse();
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span.setAttribute('sortdir','up');
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}
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else
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{
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//ARROW = ' ↓';
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ARROW = '<img src="' + WWW_TOP + '/themes/shared/img/sorting/arrow_down.gif" alt="" />';
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span.setAttribute('sortdir','down');
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}
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// We appendChild rows that already exist to the tbody, so it moves them rather than creating new ones
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// don't do sortbottom rows
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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]);}
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// do sortbottom rows only
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for (i=0;i<newRows.length;i++) { if (newRows[i].className && (newRows[i].className.indexOf('sortbottom') != -1)) table.tBodies[0].appendChild(newRows[i]);}
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// Delete any other arrows there may be showing
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var allspans = document.getElementsByTagName("span");
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for (var ci=0;ci<allspans.length;ci++)
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{
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if (allspans[ci].className == 'SortArrow')
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{
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if (getParent(allspans[ci],"table") == getParent(lnk,"table"))
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{ // in the same table as us?
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allspans[ci].innerHTML = '';
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}
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}
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}
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span.innerHTML = ARROW;
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F_ColourRows(table);
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}
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function getParent(el, pTagName) {
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if (el == null) return null;
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else if (el.nodeType == 1 && el.tagName.toLowerCase() == pTagName.toLowerCase()) // Gecko bug, supposed to be uppercase
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return el;
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else
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return getParent(el.parentNode, pTagName);
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}
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function ts_sort_date(a,b) {
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// y2k notes: two digit years less than 50 are treated as 20XX, greater than 50 are treated as 19XX
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aa = ts_getInnerText(a.cells[SORT_COLUMN_INDEX]);
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bb = ts_getInnerText(b.cells[SORT_COLUMN_INDEX]);
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if (aa.length == 10) {
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dt1 = aa.substr(6,4)+aa.substr(3,2)+aa.substr(0,2);
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} else {
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yr = aa.substr(6,2);
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if (parseInt(yr) < 50) { yr = '20'+yr; } else { yr = '19'+yr; }
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dt1 = yr+aa.substr(3,2)+aa.substr(0,2);
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}
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if (bb.length == 10) {
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dt2 = bb.substr(6,4)+bb.substr(3,2)+bb.substr(0,2);
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} else {
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yr = bb.substr(6,2);
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if (parseInt(yr) < 50) { yr = '20'+yr; } else { yr = '19'+yr; }
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dt2 = yr+bb.substr(3,2)+bb.substr(0,2);
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}
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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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function ts_sort_currency(a,b) {
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aa = ts_getInnerText(a.cells[SORT_COLUMN_INDEX]).replace(/[^0-9.]/g,'');
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bb = ts_getInnerText(b.cells[SORT_COLUMN_INDEX]).replace(/[^0-9.]/g,'');
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return parseFloat(aa) - parseFloat(bb);
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}
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function ts_sort_numeric(a,b) {
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aa = parseFloat(ts_getInnerText(a.cells[SORT_COLUMN_INDEX]));
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if (isNaN(aa)) aa = 0;
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bb = parseFloat(ts_getInnerText(b.cells[SORT_COLUMN_INDEX]));
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if (isNaN(bb)) bb = 0;
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return aa-bb;
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}
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function ts_sort_caseinsensitive(a,b) {
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aa = ts_getInnerText(a.cells[SORT_COLUMN_INDEX]).toLowerCase();
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bb = ts_getInnerText(b.cells[SORT_COLUMN_INDEX]).toLowerCase();
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if (aa==bb) return 0;
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if (aa<bb) return -1;
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return 1;
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}
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function ts_sort_default(a,b) {
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aa = ts_getInnerText(a.cells[SORT_COLUMN_INDEX]);
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bb = ts_getInnerText(b.cells[SORT_COLUMN_INDEX]);
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if (aa==bb) return 0;
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if (aa<bb) return -1;
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return 1;
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}
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function addEvent(elm, evType, fn, useCapture)
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{
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if (elm.addEventListener){
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elm.addEventListener(evType, fn, useCapture);
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return true;
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} else if (elm.attachEvent){
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var r = elm.attachEvent("on"+evType, fn);
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return r;
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} else {
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alert("Handler could not be removed");
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}
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}
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//------------------------------------------------------------------------------------
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function F_ColourRows ( objTable )
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{
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var n_AltCount = 0;
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for ( var i=1; i<objTable.rows.length; i++ )
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{
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objTable.rows[i].className = "";
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if ( n_AltCount == 1 )
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{
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objTable.rows[i].className = "Darker";
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n_AltCount = -1;
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}
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n_AltCount ++;
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}
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}
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