addEvent(window, "load", sortables_init);

var SORT_COLUMN_INDEX;

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 ts_makeSortable(table) {
	var topFound = 0;
    if (table.rows && table.rows.length > 0) {
        for (var i = 0; i<table.rows.length; i++) {
			if ((' '+table.rows[i].className+' ').indexOf("top") == -1) {
				var firstRow = table.rows[i];
				break;
			}
		}
    }
    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];
        if ((' '+cell.className+' ').indexOf("nosort") == -1) {
			var txt = ts_getInnerText(cell, true);
			//cell.innerHTML = '<a href="#" class="sortheader" onclick="ts_resortTable(this);return false;">'+txt+'<span class="sortarrow"></span></a>';
			cell.innerHTML = '<a href="#" class="sortheader" onclick="ts_resortTable(this,' + i + ');return false;">'+txt+'<span class="sortarrow"></span></a>';

		}
    }
}


function ts_getInnerText(el, checkInnerHTML) {
	
	if (typeof el == "string") return el;
	if (typeof el == "undefined") {return '';}	

	if (checkInnerHTML == true)		
		if (el.innerHTML) return el.innerHTML;
	else
		if (el.innerText) return el.innerText;
	
	/////////////////////////////////////
	// Tom, not sure what of this code you added to debug, but I think using innerHTML
	// instead of innerText will work
	// e.g. return el.innerHTML;
	/////////////////////////////////////
	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], checkInnerHTML);
				break;
			case 3:	//TEXT_NODE
				str += cs[i].nodeValue;
				break;
		}
	}	
	return str;
}

function ts_resortTable(lnk, cellIndex) {
    // get the span
    var span;
    var cellClass;
    var highlightIndex;
    var firstRowIndex;
   
    for (var 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, false);
    var td = lnk.parentNode;
    //var column = td.cellIndex;
    var column = cellIndex || td.cellIndex;
    var table = getParent(td,'TABLE');
 
    // Set default sort direction
    if (span.getAttribute("sortdir")==null) {
		if ((' '+td.className+' ').indexOf("sortasc") != -1) {
			span.setAttribute('sortdir','up');
		}
		else
			span.setAttribute('sortdir','down');
    }
    
    // Work out a type for the column
    if (table.rows.length <= 1) return;
    
    firstRowIndex = 0
    for(i=0;i<table.rows.length;i++) {
		if ((' '+table.rows[i].className+' ').indexOf("top") == -1) {
				firstRowIndex = i;
				break;
			}
    }
    
    if ((' '+td.className+' ').indexOf("sortpos") != -1) {
		sortfn = ts_sort_position;
	}
	else if ((' '+td.className+' ').indexOf("sortsalary") != -1) {
		sortfn = ts_sort_currency;
	}
	else if ((' '+td.className+' ').indexOf("sortnum") != -1) {
		sortfn = ts_sort_numeric;
	}
	else if ((' '+td.className+' ').indexOf("sortstrk") != -1) {
		sortfn = ts_sort_strk;
	}
	else if ((' '+td.className+' ').indexOf("sortpname") != -1) {
		sortfn = ts_sort_playerName;
	}
    else {
		var iIdx=firstRowIndex+1;
		var itm = ts_getInnerText(table.rows[iIdx].cells[column], false);

		while (escape(itm)=='%A0' && iIdx<table.rows.length){
			iIdx++;
			var itm = ts_getInnerText(table.rows[iIdx].cells[column], false);					
		}
		
		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 = new Array();
    var newRows = new Array();
    for (i=0;i<table.rows[firstRowIndex].length;i++) {firstRow[i] = table.rows[firstRowIndex][i];}
    for (j=firstRowIndex+1;j<table.rows.length;j++) {		
		newRows[j-(firstRowIndex+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');
    }
    
    // Set correct row class
    var rowCount=0;
    for (j=0;j<newRows.length;j++) { 		
		//alert(i + ' ' + newRows[j].cells[0].innerHTML + ' ---- ' + newRows[j].className);
		if (newRows[j].className && (newRows[j].className.indexOf('sortbottom') == -1)) {
			//alert(i + ' ' + newRows[j].cells[0].innerHTML + ' ---- ' + newRows[j].className);
			if (newRows[j].className!='highlight') {
				if ((newRows[j].className.indexOf('sortmiddle') == -1)) {
					if (rowCount % 2){newRows[j].className='even';}
					else {newRows[j].className='odd';}
				}
			}
			
			// Set hightlight on column
			for (k=0;k<newRows[j].cells.length;k++) { 		
				cellClass=newRows[j].cells[k].className;
				highlightIndex=(' '+cellClass+' ').indexOf("highlight");
				if (k==SORT_COLUMN_INDEX) {
					if (highlightIndex == -1) {newRows[j].cells[k].className=cellClass + ' highlight';}
				}
				else if (highlightIndex != -1) newRows[j].cells[k].className=cellClass.slice(0,highlightIndex-1);				
			}
			if ((newRows[j].className.indexOf('sortmiddle') == -1)) {
				rowCount++;
			}
		}		
	}
	
    // We appendChild rows that already exist to the tbody, so it moves them rather than creating new ones
    // don't do sortbottom or sortmiddle rows    
    for (i=0;i<newRows.length;i++) { 
		//alert(i + ' ' + newRows[i].cells[0].innerHTML + ' ---- ' + newRows[i].className);
		if (!newRows[i].className || (newRows[i].className && (newRows[i].className.indexOf('sortbottom') == -1) && (newRows[i].className.indexOf('sortmiddle') == -1))){
			table.tBodies[0].appendChild(newRows[i]);
		}		
	}
	// do sortmiddle rows only    
    for (i=0;i<newRows.length;i++) { 
		//alert(i + ' ' + newRows[i].cells[0].innerHTML + ' ---- ' + newRows[i].className);
		if (newRows[i].className && (newRows[i].className.indexOf('sortmiddle') != -1)) {			
			table.tBodies[0].appendChild(newRows[i]);
		}
	}
    // do sortbottom rows only    
    for (i=0;i<newRows.length;i++) { 
		//alert(i + ' ' + newRows[i].cells[0].innerHTML + ' ---- ' + newRows[i].className);
		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 (var 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 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], false);
    bb = ts_getInnerText(b.cells[SORT_COLUMN_INDEX], false);
    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) < 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) < 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) { 
	var c, d;
	c = ts_getInnerText(a.cells[SORT_COLUMN_INDEX], false).indexOf("K");
	d = ts_getInnerText(b.cells[SORT_COLUMN_INDEX], false).indexOf("K");
	
	aa = parseFloat(ts_getInnerText(a.cells[SORT_COLUMN_INDEX], false).replace(/[^0-9.MK]/g,''));	
	
    if (isNaN(aa)) aa = 0;
	if(c > -1) aa = aa / 1000;
    bb = parseFloat(ts_getInnerText(b.cells[SORT_COLUMN_INDEX], false).replace(/[^0-9.MK]/g,''));
	if (isNaN(bb)) bb = 0;
	if(d > -1) bb = bb / 1000;
	return aa-bb;
}

function ts_sort_strk(a,b) {
	var aaArray;
	var bbArray;
	var c, d;
	
	aa = ts_getInnerText(a.cells[SORT_COLUMN_INDEX], false);
	aaArray = aa.split('/');
	if (isNaN(aaArray[0])) aaArray[0] = 0;
	if (isNaN(aaArray[1])) aaArray[1] = 0;
	
	bb = ts_getInnerText(b.cells[SORT_COLUMN_INDEX], false);
	bbArray = bb.split('/');
	if (isNaN(bbArray[0])) bbArray[0] = 0;
	if (isNaN(bbArray[1])) bbArray[1] = 0;
	
	return ((aaArray[0]-bbArray[0])*100 + (aaArray[1]-bbArray[1]));
}

function ts_sort_numeric(a,b) { 
    aa = parseFloat(ts_getInnerText(a.cells[SORT_COLUMN_INDEX], false).replace(/[^0-9]/g,''));
    if (isNaN(aa)) aa = -1;
    bb = parseFloat(ts_getInnerText(b.cells[SORT_COLUMN_INDEX], false).replace(/[^0-9]/g,'')); 
    if (isNaN(bb)) bb = -1;
    return aa-bb;
}

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

function ts_sort_position(a,b) {
    var a_adj, b_adj;
    
    aa = ts_getInnerText(a.cells[SORT_COLUMN_INDEX], false).toLowerCase();
    bb = ts_getInnerText(b.cells[SORT_COLUMN_INDEX], false).toLowerCase();
    
    switch (aa){
		case 'p': a_adj=1; break;
		case 'c': a_adj=2; break;
		case '1b': a_adj=3; break;
		case '2b': a_adj=4; break;
		case '3b': a_adj=5; break;
		case 'ss': a_adj=6; break;
		case 'of': a_adj=7; break;
		default: a_adj=8;
	}
	switch (bb){
		case 'p': b_adj=1; break;
		case 'c': b_adj=2; break;
		case '1b': b_adj=3; break;
		case '2b': b_adj=4; break;
		case '3b': b_adj=5; break;
		case 'ss': b_adj=6; break;
		case 'of': b_adj=7; break;
		default: b_adj=8;
	}

    if (a_adj==b_adj) return 0;
    if (a_adj<b_adj) return -1;
    return 1;
}

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

function ts_sort_playerName(a,b) {
    aa = ts_getInnerText(a.cells[SORT_COLUMN_INDEX], false).toLowerCase();;
    bb = ts_getInnerText(b.cells[SORT_COLUMN_INDEX], false).toLowerCase();;
    
    //remove the first letter and period and space from each name...
    aa	= aa.substr(3,aa.length-4)
    bb	= bb.substr(3,bb.length-4)
    if (aa==bb) return 0;
    if (aa<bb) return 1;
    return -1;
}


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");
  }
}