title: How to access element present inside a iframe from parent window?
body: <p>I have an iframe. I want to access a table which present inside iframe.I want to access it from parent window of iframe. I have written JS like</p>
  
  <pre><code>Document.getElementById("table Id");
  </code></pre>
  
  <p>But the result come null. What is the process to get it?
  thanks</p>