Unhighlighting the last clicked row in a table

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January 15th, 2013, 09:46 PM

Jason_Kelly

Registered User

Join Date: Nov 2012

Posts: 23

Time spent in forums: 2 h 20 m 59 sec
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Unhighlighting the last clicked row in a table

Hello,

The below code works great except for the fact that it does not unhighlight the last row that was clicked on. For example, if I were to click on a new row, it would change color which is perfect.

However, if I were to select another row, the previous selected row does not change back to its default color (white). How can the code below be modified so as to restore the previous clicked row to its original color if a new row has been clicked on?

Code:

<!DOCTYPE html>
<html>
<head>
<style type="text/css">
#mstrTable {
     border: 1px solid black
}
#mstrTable td, th {
     border: 1px solid black
}

#mstrTable tr.normal td {
    color: black;
    background-color: white;
}
#mstrTable tr.highlighted td {
    color: white;
    background-color: gray;
}
</style>
</head>
<body>
  <table id="mstrTable">
     <thead>
      <tr> 
        <th>File Number</th>
        <th>Date1</th>
        <th>Date2</th>
        <th>Status</th>
        <th>Num.</th>
      </tr>
    </thead>
    <tbody>
      <tr> 
        <td>KABC</td>
        <td>09/12/2002</td>
        <td>09/12/2002</td>
        <td>Submitted</td>
        <td>0</td>

      </tr>
      <tr> 
        <td>KCBS</td>
        <td>09/11/2002</td>
        <td>09/11/2002</td>
        <td>Approved</td>
        <td>1&nbsp;</td>
      </tr>

      <tr> 
        <td>WFLA</td>
        <td>09/11/2002</td>
        <td>09/11/2002</td>
        <td>Submitted</td>
        <td>2</td>
      </tr>
      <tr> 
        <td>WTSP</td>
        <td>09/15/2002</td>
        <td>09/15/2002</td>
        <td>In-Progress</td>
        <td>3</td>
      </tr>
    </tbody>
  </table>

<script type="text/javascript">
//assumes one thead and one tbody

var table = document.getElementById("mstrTable");
var thead = table.getElementsByTagName("thead")[0];
var tbody = table.getElementsByTagName("tbody")[0];

tbody.onclick = function (e) {
   e = e || window.event;
   var td = e.target || e.srcElement; //assumes there are no other elements inside the td
   var row = td.parentNode;
   row.className = row.className==="highlighted" ? "" : "highlighted";
}

thead.onclick = function (e) {
   e = e || window.event;
   var th = e.target || e.srcElement;  //assumes there are no other elements in the th
   alert(th.innerHTML);
}
</script>
</body>
</html>

January 15th, 2013, 10:18 PM

web_loone08

Contributing User

Join Date: Aug 2008

Posts: 602

Time spent in forums: 1 Week 1 Day 13 h 34 m 37 sec
Reputation Power: 69