title: Get selected text within an text item in Oracle forms
body: <p>There is following scenario: 
  In Oracle Forms 10, there is a TextItem with text in it. User selects a part of the text using his mouse or keyboard and presses a forms button with trigger behind it.</p>
  
  <p><strong>How do I find the portion of the text selected by the user?</strong></p>
  
  <p>In VisualBasic, there is something like SelectionStart, SelectionEnd, SelectionText. What is the equivalent in forms? Is there any chance to do it with WebUtil?</p>
  
  <p>Thanx</p>