lide.load"><code>DataSource</code></a> the resource was loaded from.</dd>
<dd><code>isFirstResource</code> - <code>true</code> if this is the first resource to in this load to be
                          loaded into the target. For example when loading a thumbnail and a
                          full-sized image, this will be <code>true</code> for the first image to
                          load and <code>false</code> for the second.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd><code>true</