JavaScript question when Cancel attempted. How to end JavaScript?

["Tom Deskevich" <thomas.l.deskevich@xxxxxxxxxxxxx>]

When I want to cancel the page, and go back to the previous page in history,
it executes the JavaScript and makes me press the cancel button again.
Is there a way to keep JavaScript from executing? I want to default a value
in a combo box and when they select or leave that box, I want to skip to the
appropriate text box, depending on the selection.

But when I cancel, it is executing the JavaScript, and forces me to press
the cancel button twice. 
===================================================
JavaScript: Jump to text box based on selection of atcombo, this executes
when I press the cancel button

  function atjump()
   { var
accounttype=(siform.atcombo.options[siform.atcombo.selectedIndex].value)
if (accounttype == 1)
var mytext=document.getElementById("orgname")
if (accounttype == 2)
var mytext=document.getElementById("indlastname")
mytext.focus() }
===================================================
Combo box: Defaults a 1.

<select size="1" name="atcombo" style="background-color:white" tabindex="1"
onSelect=atjump() onblur=atjump()  onChange=atjump()>
  <option selected value="1">Orginization</option>
  <option value="2">Individual</option>
  </select>
=====================================================
Cancel Button: 

<form>
    <div style=text-align="center"> 
  <input type="button" value="CANCEL REGISTRATION AND RETURN"
onclick="history.go(-1)"/> </div

Thanks!

-----Original Message-----
From: web400-bounces@xxxxxxxxxxxx [mailto:web400-bounces@xxxxxxxxxxxx] On
Behalf Of Tom Deskevich
Sent: Monday, November 16, 2009 10:29 AM
To: 'Web Enabling the AS400 / iSeries'
Subject: Re: [WEB400] Easiest question ever posted?


Thanks Michael, it does do the action, but only after positioning me to the
top of the page. It is possible it is running some JavaScript before the
onclick?

Tom Deskevich