- <p><INPUT type="BUTTON" value="advance" id="advance" ONCLICK="advanceForm1()">
- <INPUT type="BUTTON" value="go back" id="retract" ONCLICK="retract()">
- <INPUT type="BUTTON" value="go to cursor" id="cursor" ONCLICK="gotoPos()">
- <INPUT type="BUTTON" value="bottom" id="bottom" ONCLICK="gotoBottom()">
- <INPUT type="TEXT" id="filename" value=""><INPUT type="BUTTON" value="Open" ONCLICK="openFile()"></p>
- <INPUT type="BUTTON" value="show sequent" id="showseq" ONCLICK="showSequent()">
+ <p><A href="javascript:advanceForm1()"><IMG src="icons/advance.png"
+ id="advance" alt="Advance"
+ title="Execute one step of the script."></A>
+ <A href="javascript:retract()"><IMG src="icons/retract.png"
+ id="retract" alt="Retract"
+ title="Undo execution of one step of the script."></A>
+ <A href="javascript:gotoPos()"><IMG src="icons/position.png"
+ id="cursor" alt="Play"
+ title="Execute the script until the current position of the cursor."></A>
+ <A href="javascript:gotoBottom()"><IMG src="icons/bottom.png"
+ id="bottom" alt="Bottom" title="Execute the whole script."></A>
+ <INPUT type="BUTTON" value="Browse library" id="showdialog" ONCLICK="showLibrary()"></p>
+<!-- <INPUT type="BUTTON" value="show sequent" id="showseq" ONCLICK="showSequent()">