IE8 and javascript - Back/Forward button in Robohelp

Question

I am using Robohelp 7. I use the following script for my Back button - javascript:history.back(1);
This works fine in FireFox and IE7, but not in IE8. Has anyone found a solution for javascript issues in IE8?
Thanks,
Deborah

Answer 1

1) We (one of the programmers and I) tried this code in a "clean" IE8 environment and all three buttons worked:
<
html><
head><
title>Test Html</title></
head><
body>
<input type='button' value="history.back(1)" onclick="javascript:history.back(1);" />
<input type='button' value="history.go(-1)" onclick="javascript:history.go(-1);" />
<input type='button' value="history.back()" onclick="javascript:history.back();" />
</
body>　 
</
html>
2) The button is in the Robohelp toolbar.
3) This is the Robohelp code that generates the HTML:
addButton("custom17587",BTN_TEXT|BTN_IMG,"Back","","javascript:history.back(1);  ","","",0,0,"backbuttonon.gif","backbuttonon.gif","","backbuttonon.gif","","");
4) This is the HTML code that Robohelp generates for the Back button:
The code that run is :
<TBODY>
<TR>
<TD onmouseup="onBtnMouseUp(event, 4);" class=clsBtnNormal onmouseover="onBtnMouseOver(event, 4);" onmouseout="onBtnMouseOut(event, 4);" onmousedown="onBtnMouseDown(event, 4);" onclick="onBtnClick(event);return false;" vAlign=center noWrap align=middle><A id=btncustom17587 class=btncustom17587 onmouseover=cusOnMouseOver(0); title=Back onclick="cusOnClick(0);return false;" href="javascript:void(0);"><IMG border=0 alt=Back align=absMiddle src="http://localhost:8080/jserf/help/en_US/PortalHelp/backbuttonon.gif"> Back</A></TD>
5) We tried all three options from #1 above in the Robohelp code (#4 above) and none of them worked in IE8.