var</span> <span class="local">btn</span> = <span class="kwd">new</span> <span class="local">Button</span>({
               <span class="attr">text</span>: <span class="str">'Hello World'</span>,
               <span class="attr">press</span>: <span class="kwd">function</span>() { alert(<span class="str">'Hello!'</span>); }
            });
            <span class="local">btn</span>.placeAt(<span class="str">'content'</span>);
         });
      });
      <span class="tag">&lt;/<span class="name">script</spa