title: Accessing the elements of frame inside the frameset using JavaScript
body: <p>I am building a <strong>asp.net</strong> web application which uses <strong>frameset</strong>.</p>
  
  <p>The content of each <strong>frame</strong> within a <strong>frameset</strong> is a 3rd party website.Now I need to do the fallowing using <strong>Javascript</strong>.</p>
  
  <ol>
  <li>One of the 3rd party website in a frame has check box. I should ensure that this should always be in checked state and and this should happen automatically using JavaScript or so.</li>
  <li>Also there is a text box where i can input some text based on which the filtering will happen and result will be shown.I also need to do this inputting the text using <code>Javascript</code> to ensure that i will get the filtered data continuously.</li>
  </ol>
  
  <p>I assume this can be done by using the <strong>JavaScript</strong> like <code>document.getElementbyID</code>,but i am unable to do it in my application.</p>
  
  <p>I am new to the JavaScript.Please help me implementing this.Thank you.</p>