<script type="text/javascript">
function search(clazz, elem) { 	var searchValue = elem.value.toLowerCase(); 	dojo.query("#myData ."+clazz).forEach(function(node) { 	console.log(elem.value); 		if (elem.value == "")  { 			var tr = node.parentNode; 			tr.style.display = "table-row"; 		} else if (node.innerHTML.toLowerCase().indexOf(searchValue) > -1) {
			var tr = node.parentNode;
			tr.style.display = "table-row";
		} else {
			var tr =node.parentNode;
			tr.style.display = "none";
		}
	});
}
</script><table id="myData">
<thead>
	<tr>
		<th>isbn</th>
        <th>title<br/><input type="text" onkeyup="search('name', this)"/></th>
        <th>author<br/><input type="text" onkeyup="search('nummer', this)"/></th>
        <th>title2</th>
        <th>author2</th>
	</tr>
</thead>
<tbody>
	<tr>
		<td>First col</td>
		<td class="name readonly">Sec col</td>
		<td class="nummer readonly">third col</td>
		<td class="hideBlock">forth col</td>
		<td>fifth col</td>
	</tr>
	<tr>
		<td>First col</td>
		<td class="name readonly">row2 col</td>
		<td class="nummer readonly">row2 col</td>
		<td class="hideBlock">forth col</td>
		<td>fifth col</td>
	</tr>
</tbody>
</table>