/*
Table sorting script, taken from http://www.kryogenix.org/code/browser/sorttable/ .
Distributed under the MIT license: http://www.kryogenix.org/code/browser/licence.html .

Adaptation by Joost de Valk ( http://www.joostdevalk.nl/ ) to add alternating row classes as well.

Copyright (c) 1997-2006 Stuart Langridge, Joost de Valk.
*/

/* Change these values */
var image_path = "images/";
var image_up = "sort_down.gif";
var image_down = "sort_up.gif";
var image_none = "arrow_none.gif";

/* Don't change anything below this unless you know what you're doing */
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);
			//sum_up(thisTbl);
		}
	}
}

function ts_makeSortable(table) {
	if (table.rows && table.rows.length > 0) {
		var firstRow = table.rows[0];
        var oddRow = table.rows[1];
		var evenRow = table.rows[2];
	}
	
	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);
		 
		 if(txt.length>1){		 
		if (cell.className != "unsortable" && cell.className.indexOf("unsortable") == -1) {
			cell.innerHTML = '<a href="#" class="sortheader" onclick="ts_resortTable(this);return false;">'+txt+'<span class="sortarrow"><img border=\"0\" src="'+ image_path + image_none + '" alt="&darr;"/></span></a>';
		}
		}
	}
	
	var firstHead = firstRow.cells[0];
	if(firstHead!=null){
	  var txt = ts_getInnerText(firstHead);
	  if(txt.length>1){
		if (firstHead.className != "unsortable" && cell.className.indexOf("unsortable") == -1) {		
			firstHead.innerHTML = '<a href="#" class="sortheader" onclick="ts_resortTable(this);return false;">'+txt+'<span class="sortarrow"><img border=\"0\" src="'+ image_path + image_down + '" alt="&darr;"/></span></a>';
		}
		} else if (ts_getInnerText(firstRow.cells[1]) == "Anrede") { 
		var thirdCol = firstRow.cells[2];
		 var txt3 = ts_getInnerText(thirdCol);
		 thirdCol.innerHTML = '<a href="#" class="sortheader" onclick="ts_resortTable(this);return false;">'+txt3+'<span class="sortarrow"><img border=\"0\" src="'+ image_path + image_down + '" alt="&darr;"/></span></a>';		
		
	  } else {
	  	var secCol = firstRow.cells[1];
		 var txt2 = ts_getInnerText(secCol);
		 secCol.innerHTML = '<a href="#" class="sortheader" onclick="ts_resortTable(this);return false;">'+txt2+'<span class="sortarrow"><img border=\"0\" src="'+ image_path + image_down + '" alt="&darr;"/></span></a>';
	  }
	 }
	alternate(table,oddRow.className,evenRow.className);
}

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');
	
	
	// added by Prem
	
	 var oddRow = table.rows[1];
		var evenRow = table.rows[2];
	
	
	// 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;
	
	// addes by jens
	// SF_klasse
	var zweiteSpalte = ts_getInnerText(table.rows[0].cells[1]);
	var ersteSpalte = ts_getInnerText(table.rows[0].cells[0]);
	var kw = ts_getInnerText(table.rows[0].cells[column]);
                              		
	//if (itm.match(/^\d{1,2}(\-|\/|\.)\d{1,2}\1\d{4}$/)) sortfn = ts_sort_date;
	
	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;
	
	if (zweiteSpalte == "SF-Klasse")sortfn = ts_sort_kfz;
	if (ersteSpalte == "Laufleistung" ) sortfn = ts_sort_numeric;
	if (kw == "kW/PS") 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 = '<img border=\"0\" src="'+ image_path + image_up + '" alt="&uarr;"/>';
			newRows.reverse();
			span.setAttribute('sortdir','up');
	} else {
			ARROW = '<img border=\"0\" src="'+ image_path + image_down + '" alt="&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 (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 = '<img border=\"0\" src="'+ image_path + image_none + '" alt="&darr;"/>';
			}
		}
	}
			
	span.innerHTML = ARROW;
	alternate(table,oddRow.className,evenRow.className);		
}

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_kfz(a,b) { 
	aa = ts_getInnerText(a.cells[SORT_COLUMN_INDEX]);
	bb = ts_getInnerText(b.cells[SORT_COLUMN_INDEX]);
	aaLetzte4 = aa.substring((aa.length - 4));
	bbLetzte4 =	bb.substring((bb.length - 4));
	// Sf trennen 
	if (aaLetzte4.substring(0,1) == " ") {
	aa = aaLetzte4.substring(3);
	} else {
	aa = aaLetzte4.substring(2);
	}
	// Sf fuer b trennen
	if (bbLetzte4.substring(0,1) == " ") {
	bb = bbLetzte4.substring(3);
	} else {
	bb = bbLetzte4.substring(2);
	}
	
	if (aa.length < 2) {
		aa = "0" + aa;
	}
	if (bb.length < 2) {
		bb = "0" + bb;
	}
	
	if (aa==bb) {
		return 0;
	}
	if (aa<bb) {
		return -1;
	}
	return 1;

	
}


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");
	}
} 

function replace(s, t, u) {
  /*
  **  Replace a token in a string
  **    s  string to be processed
  **    t  token to be found and removed
  **    u  token to be inserted
  **  returns new String
  */
 
  i = s.indexOf(t);
  
  r = "";
  if (i == -1) return s;
  r += s.substring(0,i) + u;
  if ( i + t.length < s.length)
    r += replace(s.substring(i + t.length, s.length), t, u);
  return r;
}

function alternate(table,oddRow,evenRow) {

	// Take object table and get all it's tbodies.
	var tableBodies = table.getElementsByTagName("tbody");
	
	// check whether row classes available 
	
	if(oddRow.length==0){
	   oddRow=" ";
	}
	if(evenRow.length==0){
	   evenRow=" ";
	}
	
	// Loop through these tbodies
	for (var i = 0; i < tableBodies.length; i++) {
		// Take the tbody, and get all it's rows
		var tableRows = tableBodies[i].getElementsByTagName("tr");
		// Loop through these rows
		// Start at 1 because we want to leave the heading row untouched
		for (var j = 0; j < tableRows.length; j++) {
			// Check if j is even, and apply classes for both possible results
			if ( (j % 2) == 0  ) {
				if (tableRows[j].className == oddRow || !(tableRows[j].className.indexOf(oddRow) == -1) ) {
				   tableRows[j].className = replace(tableRows[j].className, oddRow, evenRow);				 
				} else {
					tableRows[j].className = " "+evenRow;
				}
			} else {
				if (tableRows[j].className == evenRow || !(tableRows[j].className.indexOf(evenRow) == -1) ) {
				   tableRows[j].className = replace(tableRows[j].className,evenRow, oddRow);				 
				}
				tableRows[j].className = " "+oddRow;
			} 
		}
	 
		
	}
 
}

function addClassName(el, sClassName) {
	var s = el.className;
	var p = s.split(" ");
	var l = p.length;
	for (var i = 0; i < l; i++) {
		if (p[i] == sClassName)
			return;
	}
	p[p.length] = sClassName;
	el.className = p.join(" ");

}

function removeClassName(el, sClassName) {
	var s = el.className;
	var p = s.split(" ");
	var np = [];
	var l = p.length;
	var j = 0;
	for (var i = 0; i < l; i++) {
		if (p[i] != sClassName)
			np[j++] = p[i];
	}
	el.className = np.join(" ");
}