//$Id: sorttable.js,v 1.1.2.2 2005/08/18 17:55:39 asivakumar Exp $  
  
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("htableBorder") != -1) && (thisTbl.id)) {  
            //initTable(thisTbl.id);  
            ts_makeSortable(thisTbl);  
        }  
    }  
var allspans = document.getElementsByTagName("span");
allspans[3].innerHTML="<img border='0' src='/webclient/common/images/sortdown.gif'>"; 
}  
  
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++) {  
        if(i==0 || i==1)
        {
            continue;
        }
        var cell = firstRow.cells[i];  
        var txt = ts_getInnerText(cell);  
        cell.innerHTML = '<a href="#" class="whiteBoldText" onclick="ts_resortTable(this);return false;">'+txt+'<span class="sortarrow">&nbsp;&nbsp;</span></a>';  
    }  
}  
  
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_resortTable(lnk) {  
    // get the span  
    var span;  
    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);  
    var td = lnk.parentNode;  
    var column = td.cellIndex;  
    var 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 = new Array();  
    var newRows = new Array();  
    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;'+"<img src='/webclient/common/images/sortdown.gif' border=0>";  
        newRows.reverse();  
        span.setAttribute('sortdir','up');  
    } else {  
        ARROW = '&nbsp;'+"<img src='/webclient/common/images/sortup.gif' border=0>";  
        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 (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]);  
    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) < 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) {   
    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_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;  
}  
  
  
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");  
  }  
}   
