<p>for example this code</p>

<pre><code>var html = "&lt;p&gt;This text is &lt;a href=#&gt; good&lt;/a&gt;&lt;/p&gt;";
var newNode = Builder.node('div',{className: 'test'},[html]);
$('placeholder').update(newNode);
</code></pre>

<p>casues the p and a tags to be shown,  how do I prevent them from being escaped?</p>

The last parameter to Builder.node is "Array, List of other nodes to be appended as children" according to the
Wiki
. So when you pass it a string it is treated like text.
You could use:
```
```
var a = Builder.node('div').update("<a href='#'>foo</a>")
```
```
Where the link is text or:
```
```
var a = Builder.node('div', {'class':'cool'}, 
         [Builder.node('div', {'class': 'another_div'})]
        );
```
```
And you could use just Prototypes
new Element()
(Available as of version 1.6).
```
```
var a = new Element('div').insert(
          new Element('div', {'class': 'inner_div'}).update("Text in the inner div")
        );
```
```