Drop-down menu question

I am using a drop-down menu so a user can select a language for the page to be displayed in.
In my select options it is currently like this:

        <select name="langChoice" onchange="location = this.options[this.selectedIndex].value;">
            <option>Select language...</option>
            <option value="http://localhost:100/#session.pageName#?langChoice=100">English</option>
            <option value="http://localhost:100/#session.pageName#?langChoice=101">German</option>
            <option value="http://localhost:100/#session.pageName#?langChoice=102">Spanish</option>
        </select>

Select allOpen in new window

This reloads the page using the langChoice   variable but it ends up like this:
http://domain/pagename?langchoice= 101

I need it to just reload the page using the langChoice value but not show the:
?langChoice=101

Any ideas?



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