post in the field

Question

How to do it: There is field box is on form and the right link if click this link is open small box And then choose some data and is pasted in the field box

edit ( from the comments ) the seem this:

<input id='message-1' type="text" name="message-1">
<a href="checker.php" target="_blank" 
  onclick="window.open(this.href,this.target,'width=300, height=300, left=250');return false;" >click</a>
<br>