<!-- Paste this code into an external JavaScript file named: smartTables.js  -->

/* This script and many more are available free online at
The JavaScript Source :: http://javascript.internet.com
Created by: RoBorg ::
http://javascript.geniusbug.com | http://www.roborg.co.uk
Licensed under: Creative Commons License */

function smartTableInit() {
     var tables = document.getElementsByTagName('table');
    var len = tables.length;
    for(var i=0; i<len; i++) {
          if(tables[i].className.indexOf('smartTable') != -1)
             smartTable(tables[i]);
     }
}

function smartTable(t) {
    var trs = t.getElementsByTagName('tbody').item(0).getElementsByTagName('tr');
    var len = trs.length;
    for(var i=0; i<len; i++) {
         trs[i].className = 'r' + (i%2);
         trs[i].onmouseover = function() {
        this.className += ' over';
         }
         trs[i].onmouseout = function() {
              this.className = this.className.replace(/\s+over/, '');
         }
     }

    var rows = t.rows;
    var numRows = rows.length;
    for(var i=0; i<numRows; i++) {
         var cells = rows[i].cells;
         var numCells = cells.length;
         for(var j=0; j<numCells; j++) {
              if(j && i)
                   break;
              if(i) cells[j].onclick = new Function('sortByRow(this, ' + i + ');');
              else cells[j].onclick = new Function('sortByCol(this, ' + j + ');');
         }
    }
}

function sortByRow(th, r) {
    var t = th;
    while(t.tagName.toLowerCase() != 'table')
         t = t.parentNode;
    var dir = 1;
    if(t.sortedRow) {
         if(Math.abs(t.sortedRow) == r+1)
              dir = t.sortedRow == r+1?-1:1;
    }
    var vals = new Array();
    var val;
    var len = t.rows[r].cells.length;
    var cells = t.rows[r].cells;
    for(var i=1; i<len; i++) {
         val = cells[i].innerHTML;
         vals[vals.length] = {'val':val,'i':i};
    }
    vals = vals.sort(sortCell);
    if(dir == -1)
         vals = vals.reverse();
    var newT = t.cloneNode(true);
    for(var j=0; j<t.rows.length; j++) {
         if(j) {
              var cName = newT.rows[j].cells[0].className.replace(/\s*sorted(Asc|Desc)/, '');
              if(j == r)
                   cName += (dir == 1?' sortedAsc':' sortedDesc');
                newT.rows[j].cells[0].className = cName;
           }
         for(var i=0; i<vals.length; i++) {
              newT.rows[j].replaceChild(t.rows[j].cells[vals[i].i].cloneNode(true), newT.rows[j].cells[i+1]);
         }
     }
    t.parentNode.replaceChild(newT, t);
     newT.sortedRow = (r+1) * dir;
     smartTable(newT);
}

function sortByCol(th, c) {
    var t = th;
    while(t.tagName.toLowerCase() != 'table')
         t = t.parentNode;
    var dir = 1;
    if(t.sortedCol) {
         if(Math.abs(t.sortedCol) == c+1)
              dir = t.sortedCol == c+1?-1:1;
  }
    var vals = new Array();
    var val;
    for(var i=1; i<t.rows.length; i++) {
         if(!t.rows[i].cells[c]) val = 0;
          else val = t.rows[i].cells[c].innerHTML;
          vals[vals.length] = {'val':val,'i':i};
    }
    vals = vals.sort(sortCell);
    if(dir == -1)
          vals = vals.reverse();
    var newT = t.cloneNode(true);
    var len = newT.rows[0].cells.length;
    var cells = newT.rows[0].cells;
    for(var i=0; i<len; i++) {
         var cName = cells[i].className.replace(/\s*sorted(Asc|Desc)/, '');
         if(i == c)
              cName += (dir == 1?' sortedAsc':' sortedDesc');
         cells[i].className = cName;
    }
    for(var i=0; i<vals.length; i++) {
         newT.rows[i+1].parentNode.replaceChild(t.rows[vals[i].i].cloneNode(true), newT.rows[i+1]);
    }
    t.parentNode.replaceChild(newT, t);
    newT.sortedCol = (c+1) * dir;
    smartTable(newT);
}

function sortCell(a, b) {
     if(a.val == b.val)
          return 0;
     return a.val < b.val?-1:1;
}

// Multiple onload function created by: Simon Willison
// http://simonwillison.net/2004/May/26/addLoadEvent/
function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      if (oldonload) {
        oldonload();
      }
      func();
    }
  }
}

addLoadEvent(function() {
  smartTableInit();
});