title: Click when Ok button is clickable in Imacros?
body: <p>I have script Imacros which is used to upload videos files. I set "wait seconds = 600" and then click Ok button. However, sometime, it only take 100 seconds or 200 seconds to upload video files. So, it is waste of times to wait more 400 seconds.</p>
  
  <p>If video files wasn't uploaded completely, Ok button will NOT be show:</p>
  
  <pre><code>&lt;div tabindex="0" aria-disabled="TRUE" guidedhelpid="ghid-psc" id="picker:ap:0" style="-moz-user-select: none;" role="button" class="a-b-c d-u d-u-F Ed-tb-re-enabled"&gt;Ok&lt;/div&gt;
  </code></pre>
  
  <p>If video files wasn uploaded completely, Ok button will be show:</p>
  
  <pre><code>&lt;div tabindex="0" aria-disabled="false" guidedhelpid="ghid-psc" id="picker:ap:0" style="-moz-user-select: none;" role="button" class="a-b-c d-u d-u-F Ed-tb-re-enabled"&gt;Ok&lt;/div&gt;
  </code></pre>
  
  <p>So, I want to ask: How to know video files was uploaded completely or not then click OK button ? </p>
  
  <p>Thank you very much ! Sorry for my poor English !</p>