thrillhillmotocross/thmx_r1/stripes.html

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">


<html>
<head>
<title>
Striped Tables
</title>

<link rel="stylesheet" type="text/css" href="tables.css" />

<style type="text/css">

	#playlist {
		border: 1px solid #666666;
	}

	#playlist tbody tr td {
		font-family: "lucida grande", verdana, sans-serif;
		font-size: 8pt;
		padding: 3px 8px;
		border-left: 1px solid #D9D9D9;
	}
	
	#playlist tbody tr.selected td {
		background-color: #3d80df;
		color: #ffffff;
		font-weight: bold;
		border-left: 1px solid #346DBE;
		border-bottom: 1px solid #7DAAEA;
	}
</style>


<script type="text/javascript">
<!--


  // this function is need to work around 
  // a bug in IE related to element attributes
  function hasClass(obj) {
     var result = false;
     if (obj.getAttributeNode("class") != null) {
         result = obj.getAttributeNode("class").value;
     }
     return result;
  }   

 function stripe(id) {

    // the flag we'll use to keep track of 
    // whether the current row is odd or even
    var even = false;
  
    // if arguments are provided to specify the colours
    // of the even & odd rows, then use the them;
    // otherwise use the following defaults:
    var evenColor = arguments[1] ? arguments[1] : "#fff";
    var oddColor = arguments[2] ? arguments[2] : "#eee";
  
    // obtain a reference to the desired table
    // if no such table exists, abort
    var table = document.getElementById(id);
    if (! table) { return; }
    
    // by definition, tables can have more than one tbody
    // element, so we'll have to get the list of child
    // &lt;tbody&gt;s 
    var tbodies = table.getElementsByTagName("tbody");

    // and iterate through them...
    for (var h = 0; h < tbodies.length; h++) {
    
     // find all the &lt;tr&gt; elements... 
      var trs = tbodies[h].getElementsByTagName("tr");
      
      // ... and iterate through them
      for (var i = 0; i < trs.length; i++) {

	    // avoid rows that have a class attribute
        // or backgroundColor style
	    if (!hasClass(trs[i]) && ! trs[i].style.backgroundColor) {
 
         // get all the cells in this row...
          var tds = trs[i].getElementsByTagName("td");
        
          // and iterate through them...
          for (var j = 0; j < tds.length; j++) {
        
            var mytd = tds[j];

            // avoid cells that have a class attribute
            // or backgroundColor style
	        if (! hasClass(mytd) && ! mytd.style.backgroundColor) {
        
		      mytd.style.backgroundColor = even ? evenColor : oddColor;
              
            }
          }
        }
        // flip from odd to even, or vice-versa
        even =  ! even;
      }
    }
  }
// -->
</script>


</head>
<body onload="stripe('playlist', '#fff', '#ede');"><a name="top"></a>

<div id="bottle">

<h1>iTunes Stripes</h1>

<table id="playlist" cellspacing="0">
	<tbody>
		<tr>
			<td>1</td>
			<td>Lost In The Plot</td>
			<td>The Dears</td>
		</tr>
		<tr>
			<td>2</td>
			<td>Poison</td>
			<td>The Constantines</td>
		</tr>
		<tr class="selected">
			<td>3</td>
			<td>Plea From A Cat Named Virtute</td>
			<td>The Weakerthans</td>
		</tr>
		<tr>
			<td>4</td>
			<td>Melissa Louise</td>
			<td>Chixdiggit!</td>
		</tr>
	</tbody>
	<tbody>		
		<tr>
			<td>5</td>
			<td>Living Room</td>
			<td>Tegan And Sara</td>

		</tr>
		<tr>
			<td>6</td>
			<td>Speed</td>
			<td>Bran Van 3000</td>
		</tr>
		<tr>
			<td>7</td>
			<td>Fast Money Blessing</td>
			<td>King Cobb Steelie</td>
		</tr>
	</tbody>
	<tbody>
		<tr class="selected">
			<td>8</td>
			<td>Sore</td>
			<td>Buck 65</td>
		</tr>
		<tr class="selected">
			<td>9</td>
			<td>Love Travel</td>
			<td>Danko Jones</td>
		</tr>
		<tr>
			<td>10</td>
			<td>You Never Let Me Down</td>
			<td>Furnaceface</td>
		</tr>	
	</tbody>
	
</table>

<p>
	An example of using JavaScript and the <acronym title="Document Object Model">DOM</acronym> to apply <code>background-color</code> styles to table cells. And because we aren&#8217;t applying classes to any of the table rows to achieve the effect, we can use classes for more specific uses, such as indicating selected rows in the table (rows marked #3, #8, and #9).
</p>

</div>

</body>
</html>