[Rune Thandy]

I would like to make a js file which sets the focus on an element in a form.
But it has to work from different webpages.
So in a webpage it should look something like this:

<script>
set_focus(form1,element1)
</script>

And in the js file it should look something like this:

function set_focus(page_form,page_element)
{
document.page_form.page_element.focus()
}

I know from experience that this doesn't work, but I don't know how to get it right.
Can somebody help me?