/*jslint eqeqeq: true, browser: true */
/*global window, $, jQuery*/
/** JP 20/07/09*/
/**   JS Linted*/
/**   Issues Below to do with RegEx - Don't want to touch incase it breaks working code. Won't cause an issue minifying.*/
/*
Problem at line 212 character 28: Unescaped ']'.

if (itm.match(/^\d\d[\/-]\d\d[\/-]\d\d\d\d$/)) {

Problem at line 212 character 37: Unescaped ']'.

if (itm.match(/^\d\d[\/-]\d\d[\/-]\d\d\d\d$/)) {

Problem at line 215 character 28: Unescaped ']'.

if (itm.match(/^\d\d[\/-]\d\d[\/-]\d\d$/)) {

Problem at line 215 character 37: Unescaped ']'.

if (itm.match(/^\d\d[\/-]\d\d[\/-]\d\d$/)) {
*/
/** JP END*/
function ts_getInnerText(el) {
	if (typeof el === "string")	{
		return el;
	}
	if (typeof el === "undefined") {
		return el;
	}
	if (el.innerText)	{
		return el.innerText; /*Not needed but it is faster*/
	}
	var str = "";

	var cs = el.childNodes;
	var l = cs.length;
	for (var i = 0; i < l; i++) {
		switch (cs[i].nodeType) {
		case 1:
			//ELEMENT_NODE
			str += ts_getInnerText(cs[i]);
			break;
		case 3:
			//TEXT_NODE
			str += cs[i].nodeValue;
			break;
		}
	}
	return str;
}

function ts_makeSortable(table) {
	if (table.rows && table.rows.length > 0) {
		var firstRow = table.rows[0];
	}
	if (!firstRow)	{
		return;
	}
	// We have a first row: assume it's the header, and make its contents clickable links
	for (var i = 0; i < firstRow.cells.length; i++) {
		var cell = firstRow.cells[i];
		var txt = ts_getInnerText(cell);
		cell.innerHTML = '<a href="#" class="sortheader" ' + 'onclick="ts_resortTable(this, ' + i + ');return false;">' + txt + '<span class="sortarrow">&nbsp;&nbsp;&nbsp;</span></a>';
	}
}

function sortables_init() {
	// Find all tables with class sortable and make them sortable
	if (!document.getElementsByTagName)	{
		return;
	}
	tbls = document.getElementsByTagName("table");
	for (ti = 0; ti < tbls.length; ti++) {
		thisTbl = tbls[ti];
		if (((' ' + thisTbl.className + ' ').indexOf("sortable") !== -1) && (thisTbl.id)) {
			//initTable(thisTbl.id);
			ts_makeSortable(thisTbl);
		}
	}
}

function addEvent(elm, evType, fn, useCapture)
// addEvent and removeEvent
// cross-browser event handling for IE5+,  NS6 and Mozilla
// By Scott Andrew
{
	if (elm.addEventListener) {
		elm.addEventListener(evType, fn, useCapture);
		return true;
	} else if (elm.attachEvent) {
		var r = elm.attachEvent("on" + evType, fn);
		return r;
	} else {
		alert("Handler could not be removed");
	}
}

addEvent(window, "load", sortables_init);

var SORT_COLUMN_INDEX;


function ts_getInnerText(el) {
	if (typeof el === "string")	{
		return el;
	}
	if (typeof el === "undefined") {
		return el;
	}
	if (el.innerText)	{
		return el.innerText; //Not needed but it is faster
	}
	var str = "",
		cs = el.childNodes,
		l = cs.length;
	for (var i = 0; i < l; i++) {
		switch (cs[i].nodeType) {
		case 1:
			//ELEMENT_NODE
			str += ts_getInnerText(cs[i]);
			break;
		case 3:
			//TEXT_NODE
			str += cs[i].nodeValue;
			break;
		}
	}
	return str;
}

function getParent(el, pTagName) {
	if (el === null)	{
		return null;
	}
	else if (el.nodeType === 1 && el.tagName.toLowerCase() === pTagName.toLowerCase())	{ /* Gecko bug, supposed to be uppercase */
		return el;
	}
	else	{
	return getParent(el.parentNode, pTagName);
	}
}

function ts_sort_date(a, b) {
	// y2k notes: two digit years less than 50 are treated as 20XX, greater than 50 are treated as 19XX
	aa = ts_getInnerText(a.cells[SORT_COLUMN_INDEX]);
	bb = ts_getInnerText(b.cells[SORT_COLUMN_INDEX]);
	if (aa.length === 10) {
		dt1 = aa.substr(6, 4) + aa.substr(3, 2) + aa.substr(0, 2);
	} else {
		yr = aa.substr(6, 2);
		if (parseInt(yr, 10) < 50) {
			yr = '20' + yr;
		} else {
			yr = '19' + yr;
		}
		dt1 = yr + aa.substr(3, 2) + aa.substr(0, 2);
	}
	if (bb.length === 10) {
		dt2 = bb.substr(6, 4) + bb.substr(3, 2) + bb.substr(0, 2);
	} else {
		yr = bb.substr(6, 2);
		if (parseInt(yr, 10) < 50) {
			yr = '20' + yr;
		} else {
			yr = '19' + yr;
		}
		dt2 = yr + bb.substr(3, 2) + bb.substr(0, 2);
	}
	if (dt1 === dt2)	{
		return 0;
	}
	if (dt1 < dt2)	{
		return - 1;
	}
	return 1;
}

function ts_sort_currency(a, b) {
	aa = ts_getInnerText(a.cells[SORT_COLUMN_INDEX]).replace(/[^0-9.]/g, '');
	bb = ts_getInnerText(b.cells[SORT_COLUMN_INDEX]).replace(/[^0-9.]/g, '');
	return parseFloat(aa) - parseFloat(bb);
}

function ts_sort_numeric(a, b) {
	aa = parseFloat(ts_getInnerText(a.cells[SORT_COLUMN_INDEX]));
	if (isNaN(aa))	{
		aa = 0;
	}
	bb = parseFloat(ts_getInnerText(b.cells[SORT_COLUMN_INDEX]));
	if (isNaN(bb))	{
		bb = 0;
	}
	return aa - bb;
}

function ts_sort_caseinsensitive(a, b) {
	aa = ts_getInnerText(a.cells[SORT_COLUMN_INDEX]).toLowerCase();
	bb = ts_getInnerText(b.cells[SORT_COLUMN_INDEX]).toLowerCase();
	if (aa === bb)	{
		return 0;
	}
	if (aa < bb)	{
		return - 1;
	}
	return 1;
}

function ts_resortTable(lnk, clid) {
	// get the span
	var span = undefined,
		ci = undefined;
	for (ci = 0; ci < lnk.childNodes.length; ci++) {
		if (lnk.childNodes[ci].tagName && lnk.childNodes[ci].tagName.toLowerCase() === 'span')	{
			span = lnk.childNodes[ci];
		}
	}
	var spantext = ts_getInnerText(span),
		td = lnk.parentNode,
		column = clid || td.cellIndex,
		table = getParent(td, 'TABLE');

	// Work out a type for the column
	if (table.rows.length <= 1)	{
		return;
	}
	var itm = ts_getInnerText(table.rows[1].cells[column]);
	sortfn = ts_sort_caseinsensitive;
	if (itm.match(/^\d\d[\/-]\d\d[\/-]\d\d\d\d$/))	{
		sortfn = ts_sort_date;
	}
	if (itm.match(/^\d\d[\/-]\d\d[\/-]\d\d$/))	{
		sortfn = ts_sort_date;
	}
	if (itm.match(/^[£$]/))	{	
		sortfn = ts_sort_currency;
	}
	if (itm.match(/^[\d\.]+$/)){	
		sortfn = ts_sort_numeric;
	}
	SORT_COLUMN_INDEX = column;
	var firstRow = [],
		newRows = [];
	for (i = 0; i < table.rows[0].length; i++) {
		firstRow[i] = table.rows[0][i];
	}
	for (j = 1; j < table.rows.length; j++) {
		newRows[j - 1] = table.rows[j];
	}

	newRows.sort(sortfn);

	if (span.getAttribute("sortdir") === 'down') {
		ARROW = '&nbsp;&nbsp;&uarr;';
		newRows.reverse();
		span.setAttribute('sortdir', 'up');
	} else {
		ARROW = '&nbsp;&nbsp;&darr;';
		span.setAttribute('sortdir', 'down');
	}

	// We appendChild rows that already exist to the tbody, so it moves them rather than creating new ones
	// don't do sortbottom rows
	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]);
		}
	}
	// do sortbottom rows only
	for (i = 0; i < newRows.length; i++) {
		if (newRows[i].className && (newRows[i].className.indexOf('sortbottom') !== -1))	{
			table.tBodies[0].appendChild(newRows[i]);
		}
	}

	// Delete any other arrows there may be showing
	var allspans = document.getElementsByTagName("span");
	for (ci = 0; ci < allspans.length; ci++) {
		if (allspans[ci].className === 'sortarrow') {
			if (getParent(allspans[ci], "table") === getParent(lnk, "table")) { // in the same table as us?
				allspans[ci].innerHTML = '&nbsp;&nbsp;&nbsp;';
			}
		}
	}

	span.innerHTML = ARROW;
}

function ts_sort_default(a, b) {
	aa = ts_getInnerText(a.cells[SORT_COLUMN_INDEX]);
	bb = ts_getInnerText(b.cells[SORT_COLUMN_INDEX]);
	if (aa === bb)	{
		return 0;
	}
	if (aa < bb)	{
		return - 1;
	}
	return 1;
}