title: update textbox depending upon combo box values
body: <p>I have a combo box having 4 values<br>
  Level 1<br>
  Level 2<br>
  Level 3<br>
  Level 4<br>
  I want to update my text box to current date whenever user changes the value in combo box. <br>
  What I am struggling with the following scenario<br>
  Suppose user changes the value of combo box from Level 1 to Level 2, text box is updated to current date. No issues<br>
  In the same session, same user changes the combo box value from level 2 to level 1, then text box should be updated to old date for level 1.<br>
  I am using continuous form<br>
  Any help is appreciated. </p>