/**
* Sortable library
* Fixed by Aqeel Ahmad
* @dated 15-10-2008
*/

var image_path = "http://podference.com/images/";//"http://www.unitedproject.org/images/";
//var image_path = "http://69.89.27.214/~unitedp2/dev1/images/";
var image_up = "sort_asc.png"; //{$PATH_WEB}images/{$sby}.jpg
var  image_down= "sort_desc.png";////downarrow.png";//"arrow-down.gif";
var image_none = "arrow-none.gif";
var europeandate = true; // european date format is dd/mm/YYYY whereas american format is mm/dd/yyyy
var alternate_row_colors = true;
addEvent(window, "load", sortables_init);
var SORT_COLUMN_INDEX;
var thead = false;
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)) {

			ts_makeSortable(thisTbl);
		}
	}
}
function ts_makeSortable(table) {
	if (table.rows && table.rows.length > 0) {
		if (table.tHead && table.tHead.rows.length > 0) {
			var firstRow = table.tHead.rows[table.tHead.rows.length-1];
			thead = true;
		} else {
			var firstRow = table.rows[0];
		}
	}
	if (!firstRow) return;
	for (var i=0;i<firstRow.cells.length;i++) {
		var cell = firstRow.cells[i];
		var txt = ts_getInnerText(cell);
		if (cell.className != "unsortable" && cell.className.indexOf("unsortable") == -1) {
			cell.innerHTML = '<a href="#" class="sortheader" onclick="ts_resortTable(this, '+i+');return false;">'+txt+'<span class="sortarrow"></span></a>';
		}
	}
	if (alternate_row_colors) {
		alternate(table);
	}
}
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, clid) {

	// 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 = clid || td.cellIndex;

	var table = getParent(td,'TABLE');

	

	// Work out a type for the column

	if (table.rows.length <= 1) return;

	

	var itm = "";

	var i = 1;

	while (itm == "") {

		var itm = ts_getInnerText(table.tBodies[0].rows[i].cells[column]);

		itm = trim(itm);		

		if (itm.substr(0,4) == "<!--" || itm.length == 0) {

			itm = "";

		}

		i++;

	}

	sortfn = ts_sort_caseinsensitive;

	

	if (itm.match(/^\d\d[\/\.-][a-zA-z][a-zA-Z][a-zA-Z][\/\.-]\d\d\d\d$/)) sortfn = ts_sort_date; // 02-jan-2005 (if date format is like this, month text can be of any case)

	if (itm.match(/^[a-zA-z][a-zA-Z][a-zA-Z][ ]\d\d[,]\d\d\d\d$/)) sortfn = ts_sort_date; 	  	  // jan 02,2005 

	if (itm.match(/^\d\d[\/\.-]\d\d[\/\.-]\d\d\d\d$/)) sortfn = ts_sort_date;					  // 24-02-2005 (depends upon whether u selected american or european style)

	if (itm.match(/^\d\d[\/\.-]\d\d[\/\.-]\d\d$/)) sortfn = ts_sort_date;						  // 22-02-05 

	if (itm.match(/^[$ۢ]/)) sortfn = ts_sort_currency;

	if (itm.match(/^[\d\.,\-]+$/)) sortfn = ts_sort_numeric;

	if (itm.match(/^[\d\.,\-]+%$/)) sortfn = ts_sort_numeric;

	SORT_COLUMN_INDEX = column;

	var firstRow = new Array();

	var newRows = new Array();



	for (k=0;k<table.tBodies.length;k++) {

		for (i=0;i<table.tBodies[k].rows[0].length;i++) { 

			firstRow[i] = table.tBodies[k].rows[0][i]; 

		}

	}

	

	for (k=0;k<table.tBodies.length;k++) {

		if (!thead) {

			// Skip the first row

			for (j=1;j<table.tBodies[k].rows.length;j++) { 

				newRows[j-1] = table.tBodies[k].rows[j];

			}

		} else {

			// Do NOT skip the first row

			for (j=0;j<table.tBodies[k].rows.length;j++) { 

				newRows[j] = table.tBodies[k].rows[j];

			}

		}

	}



	newRows.sort(sortfn);



	if (span.getAttribute("sortdir") == 'down') {
			
			ARROW = '&nbsp;&nbsp;<img src="'+ image_path + image_down + '"  border=0/>';
			//ARROW = '&nbsp;&nbsp;<img src="http://localhost/podference_vss/images/'+image_down + '"  border=0/>';
			newRows.reverse();

			span.setAttribute('sortdir','up');

	} else {
			
			//ARROW = '&nbsp;&nbsp;<img src="'+ image_path + image_up + '"  border=0/>';
			ARROW = '&nbsp;&nbsp;<img src="'+ image_path + image_up + '"  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 = '';

			}

		}

	}

		//	alert(ARROW);

	span.innerHTML = ARROW;

	alternate(table);		

}



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 sort_date(date) {	

	// y2k notes: two digit years less than 50 are treated as 20XX, greater than 50 are treated as 19XX

	// This function returns final date in the format YYYY-MM-DD e.g. 2005-02-29

	dt = "00000000";

	if (date.length == 11) {

		monthstr = date.substr(0,3);

		monthstr = monthstr.toLowerCase();

		switch(monthstr) {

			case "jan": var month = "01"; break;

			case "feb": var month = "02"; break;

			case "mar": var month = "03"; break;

			case "apr": var month = "04"; break;

			case "may": var month = "05"; break;

			case "jun": var month = "06"; break;

			case "jul": var month = "07"; break;

			case "aug": var month = "08"; break;

			case "sep": var month = "09"; break;

			case "oct": var month = "10"; break;

			case "nov": var month = "11"; break;

			case "dec": var month = "12"; break;

			// default: var month = "00";

		}

		dt = date.substr(7,4)+month+date.substr(4,2);

		return dt;

	} else if (date.length == 10) {

		if (europeandate == false) {

			dt = date.substr(6,4)+date.substr(0,2)+date.substr(3,2);

			return dt;

		} else {

			dt = date.substr(6,4)+date.substr(3,2)+date.substr(0,2);

			return dt;

		}

	} else if (date.length == 8) {

		yr = date.substr(6,2);

		if (parseInt(yr) < 50) { 

			yr = '20'+yr; 

		} else { 

			yr = '19'+yr; 

		}

		if (europeandate == true) {

			dt = yr+date.substr(3,2)+date.substr(0,2);

			return dt;

		} else {

			dt = yr+date.substr(0,2)+date.substr(3,2);

			return dt;

		}

	}

	return dt;

}



function ts_sort_date(a,b) {

	dt1 = sort_date(ts_getInnerText(a.cells[SORT_COLUMN_INDEX]));

	dt2 = sort_date(ts_getInnerText(b.cells[SORT_COLUMN_INDEX]));

	

	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 compare_numeric(aa,bb);

}

 

function ts_sort_numeric(a,b) {
	aa = ts_getInnerText(a.cells[SORT_COLUMN_INDEX]).replace(/,/,"").replace(/\./,"").replace(/\%/,"");

	bb = ts_getInnerText(b.cells[SORT_COLUMN_INDEX]).replace(/,/,"").replace(/\./,"").replace(/\%/,"");

	return compare_numeric(aa,bb);

}

 

function compare_numeric(a,b) {

	a = parseFloat(a);

	a = (isNaN(a) ? 0 : a);

	b = parseFloat(b);

	b = (isNaN(b) ? 0 : b);

	return a - b;

}



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 trim(s) {

  while (s.substring(0,1) == ' ') {

    s = s.substring(1,s.length);

  }

  while (s.substring(s.length-1,s.length) == ' ') {

    s = s.substring(0,s.length-1);

  }

  return s;

}



function alternate(table) {

	// Take object table and get all it's tbodies.

	var tableBodies = table.getElementsByTagName("tbody");

	// 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.indexOf('odd') == -1) ) {

					tableRows[j].className = replace(tableRows[j].className, 'odd', 'even');

				} else {

					if ( tableRows[j].className.indexOf('even') == -1 ) {

						tableRows[j].className += " even";

					}

				}

			} else {

				if ( !(tableRows[j].className.indexOf('even') == -1) ) {

					tableRows[j].className = replace(tableRows[j].className, 'even', 'odd');

				} else {

					if ( tableRows[j].className.indexOf('odd') == -1 ) {

						tableRows[j].className += " odd";

					}

				}

			} 

		}

	}
}