[Javascript] document.getElementById has no properties

[mvinayakam at gmail.com (Vinayakam Murugan)]

Hi

I am trying to append a preloaded image to a tag. It is giving me the 
following error

Error: document.getElementById("bottomback") has no properties
Source File: 
http://192.168.100.11/app_dir/layout/preload.php?Language_Id=01&Class_Id=first
Line: 63

------------------------------------------
<a id="bottomback" name="bottomback" class="back" href="<?echo 
$Back_Link?>;showmouse();"></a>

<script type="text/javascript">
document.getElementById("bottomback").appendChild(top.bottombar
[1][<?=$Language_Id?>]);
</script>

------------------------------------------

Any ideas, I have googled but it didn't help much.

-- 
Warm Regards
~~~~~~~~~~~~~~~
Vinayak
http://theregoesanotherday.blogspot.com/
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