<tr>
<td style="padding: 0px; width:67%; border-style: none;">
<textarea id="unescape" style="display:none;"></textarea>
- <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()">
+ <p><A href="javascript:advanceForm1()"><IMG src="icons/advance.png" alt="Advance" title="Execute one step of the script."></A>
+ <A href="javascript:retract()"><IMG src="icons/retract.png" alt="Retract" title="Undo execution of one step of the script."></A>
+ <A href="javascript:gotoPos()"><IMG src="icons/position.png" alt="Play" title="Execute the script until the current position of the cursor."></A>
+ <A href="javascript:gotoBottom()"><IMG src="icons/bottom.png" alt="Bottom" title="Execute the whole script."></A>
<INPUT type="TEXT" id="filename" value=""><INPUT type="BUTTON" value="Open" ONCLICK="openFile()"></p>
<INPUT type="BUTTON" value="show sequent" id="showseq" ONCLICK="showSequent()">
<INPUT type="BUTTON" value="hide sequent" id="hideseq" ONCLICK="hideSequent()">