javascript attaches to webpage after upload

does anyone know what this script means

[carolyncp]

I did not put this javascript into my webpage html .
However after I upload my webpage, and view source code online the following script is attached to the
code.

Following is the script code, does anyone know what it means, or where it comes from?

<script language="JavaScript">
<!--
var SymRealOnLoad;
var SymRealOnUnload;

function SymOnUnload()
{
window.open = SymWinOpen;
if(SymRealOnUnload!= null)
SymRealOnUnload();
}

function SymOnLoad()
{
if(SymRealOnLoad!= null)
SymRealOnLoad();
window.open = SymRealWinOpen;
SymRealOnUnload = window.onunload;
window.onunload = SymOnUnload;
}

SymRealOnLoad = window.onload;
window.onload = SymOnLoad;

//-->
</script>

Thanks for any help.

[Bernard Marx]

Welcome, carolyncp. Perhaps you'd like to take a little trip back in time with us:

[webmasterworld.com...]

[carolyncp]

thanks Bernard for clearing that up.