title: How to access data inside if statement in Handlebars templates
body: <p>To the handlebars (version 1.0.0-rc.3) template I am passing two variables , one is the json and the other one is the string containing the current language on site. </p>
  
  <pre><code>self.template = template({ data: self.model, lang:self.lang });
  </code></pre>
  
  <p>Then inside the template file I have the following structure:</p>
  
  <pre><code>    {{#each data}} 
      //this is working
      {{../lang}}   
         {{#if this.title}}   
           {{this.desc}}
           //i've tried this
           {{../lang}}
           //and this
           {{lang}}
         {{/if}}  
      {{/each}}   
  </code></pre>
  
  <p>...but I couldn't access the lang value inside the if statement. What am I doing wrong?</p>