JavaScript:
<!-- Begin Demo: Sorting data from table
function setdataType(cValue)
  {
    // THIS FUNCTION CONVERTS DATES AND NUMBERS FOR PROPER ARRAY
    // SORTING WHEN IN THE SORT FUNCTION
    var isDate = new Date(cValue);
    if (isDate == "NaN")
      {
        if (isNaN(cValue))
          {
            // THE VALUE IS A StrING, MAKE ALL CHARACTERS IN
            // StrING UPPER CASE TO ASSURE PROPER A-Z SORT
            cValue = cValue.toUpperCase();
            return cValue;
          }
        else
          {
            // VALUE IS A NUMBER, TO PREVENT StrING SORTING OF A NUMBER
            // ADD AN ADDITIONAL DIGIT THAT IS THE + TO THE LENGTH OF
            // THE NUMBER WHEN IT IS A StrING
            var myNum;
            myNum = String.fromCharCode(48 + cValue.length) + cValue;
            return myNum;
          }
        }
  else
      {
        // VALUE TO SORT IS A DATE, REMOVE ALL OF THE PUNCTUATION AND
        // AND RETURN THE StrING NUMBER
        //BUG - StrING AND NOT NUMERICAL SORT .....
        // ( 1 - 10 - 11 - 2 - 3 - 4 - 41 - 5  etc.)
        var myDate = new String();
        myDate = isDate.getFullYear() + " " ;
        myDate = myDate + isDate.getMonth() + " ";
        myDate = myDate + isDate.getdate(); + " ";
        myDate = myDate + isDate.getHours(); + " ";
        myDate = myDate + isDate.getMinutes(); + " ";
        myDate = myDate + isDate.getSeconds();
        //myDate = String.fromCharCode(48 + myDate.length) + myDate;
        return myDate ;
      }
  }
function sorttable(col, tableToSort)
  {
    var iCurCell = col + tableToSort.cols;
    var totalRows = tableToSort.rows.length;
    var bSort = 0;
    var colArray = new Array();
    var oldIndex = new Array();
    var indexArray = new Array();
    var bArray = new Array();
    var newRow;
    var newCell;
    var i;
    var c;
    var j;
    // ** POPULATE THE ARRAY colArray WITH CONTENTS OF THE COLUMN SELECTED
    for (i=1; i < tableToSort.rows.length; i++)
      {
        colArray[i - 1] = setdataType(tableToSort.cells(iCurCell).innerText);
        iCurCell = iCurCell + tableToSort.cols;
      }
    // ** COPY ARRAY FOR COMPARISON AFTER SORT
    for (i=0; i < colArray.length; i++)
      {
        bArray[i] = colArray[i];
      }
    // ** SORT THE COLUMN ITEMS
    //alert ( colArray );
    colArray.sort();
    //alert ( colArray );
    for (i=0; i < colArray.length; i++)
      { // LOOP THROUGH THE NEW SORTED ARRAY
        indexArray[i] = (i+1);
        for(j=0; j < bArray.length; j++)
          { // LOOP THROUGH THE OLD ARRAY
            if (colArray[i] == bArray[j])
              {  // WHEN THE ITEM IN THE OLD AND NEW MATCH, PLACE THE
                // CURRENT ROW NUMBER IN THE PROPER POSITION IN THE
                // NEW ORDER ARRAY SO ROWS CAN BE MOVED ....
                // MAKE SURE CURRENT ROW NUMBER IS NOT ALREADY IN THE
                // NEW ORDER ARRAY
                for (c=0; c<i; c++)
                  {
                    if ( oldIndex[c] == (j+1) )
                    {
                      bSort = 1;
                    }
                      }
                      if (bSort == 0)
                        {
                          oldIndex[i] = (j+1);
                        }
                          bSort = 0;
                        }
          }
    }
  // ** SORTING COMPLETE, ADD NEW ROWS TO BASE OF table ....
  for (i=0; i<oldIndex.length; i++)
    {
      newRow = tableToSort.insertrow();
      for (c=0; c<tableToSort.cols; c++)
        {
          newCell = newRow.insertCell();
          newCell.innerHTML = tableToSort.rows(oldIndex[i]).cells(c).innerHTML;
        }
      }
  //MOVE NEW ROWS TO TOP OF table ....
  for (i=1; i<totalRows; i++)
    {
      tableToSort.moveRow((tableToSort.rows.length -1),1);
    }
  //DELETE THE OLD ROWS FROM THE BOTTOM OF THE table ....
  for (i=1; i<totalRows; i++)
    {
      tableToSort.deleteRow();
    }
  }
//  End -->

HTML:

<table width="75%" border=1 cellspacing="1" cellpadding="1" name="rstable" id=rstable  cols=5>
    <tr bgcolor=mediumblue>
        <td><a href="javascript:sorttable(0, rstable);"><b>ID</b></a></td>
        <td><a href="javascript:sorttable(1, rstable);"><b>NAME</b></a></td>
        <td><a href="javascript:sorttable(2, rstable);"><b>DATE</b></a></td>
        <td><a href="javascript:sorttable(3, rstable);"><b>PHONE</b></a></td>
        <td><a href="javascript:sorttable(4, rstable);"><b>WORKFLOW</b></a></td>
    </tr>
    <tr>
        <td>1</td>    <td>Andy Berry</td>    <td>4/9/72</td>    <td>763-555-1212</td> <td>REVIEW</td>
    </tr>
    <tr>
        <td>2</td>    <td>Dan Developer</td>    <td>9/3/63</td>    <td>215-555-1400</td> <td>SAME</td>
    </tr>
    <tr>
        <td>3</td>    <td>John Javascript</td> <td>3/4/71</td> <td>612-555-0987</td> <td>REVIEW</td>
    </tr>
    <tr>
        <td>4</td> <td>Jerry JSPage</td> <td>8/2/71</td> <td>215-555-7654</td> <td>SAME</td>
    </tr>
    <tr>
        <td>5</td> <td>Mary Mainframe</td> <td>3/28/70</td> <td>763-555-8295</td> <td>REVIEW</td>
    </tr>
    <tr>
        <td>6</td> <td>Elaine Ecommerce</td> <td>2/28/29</td> <td>612-555-1338</td> <td>REVIEW</td>
    </tr>
    <tr>
        <td>7</td> <td>John Smith</td> <td>12/31/00</td> <td>610-555-0987</td> <td>SAME</td>
    </tr>
    <tr>
        <td>8</td> <td>Candy Coder</td> <td>4/1/70</td> <td>000-555-9099</td> <td>SAME</td>
    </tr>
        <tr>
        <td>9</td> <td>Pippy Long Stocking</td> <td>1/1/30</td> <td>613-555-1338</td> <td>DIFFERENT</td>
    </tr>
    <tr>
        <td>10</td> <td>111222</td> <td>2/2/01</td> <td>345-555-7654</td> <td>DIFFERENT</td>
    </tr>
    <tr>
        <td>11</td> <td>Apple Man</td> <td>3/13/74</td> <td>215-555-4043</td> <td>DIFFERENT</td>
    </tr>
</table>