google analytics tracking code problem

hi everybody,
i inserted the code that was given to me by google analytics into my page but every couple days my index page goes down to the bottom of the screen although my default align is top and it goes back to top when i upload it again without making any changes to code

and here is my tracking code:
<script type=”text/javascript”>
var gaJsHost = ((“https:” == document.location.protocol) ? “https://ssl.” : “http://www.”);
document.write(unescape(“&#37;3Cscript src='” + gaJsHost + “google-analytics.com/ga.js’ type=’text/javascript’%3E%3C/script%3E”));
</script>
<script type=”text/javascript”>
try {
var pageTracker = _gat._getTracker(“UA-9682255-1”);
pageTracker._trackPageview();
} catch(err) {}</script>

please can anybody explain why is this happening,
thanks

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