function get_page_height() {
	N = window.navigator.appName.substring(0,8);
	if(N == "Microsof") {
		h = document.body.clientHeight;
	}
	if(N == "Netscape") {
		h = document.body.scrollHeight;
	}
	return(h);
}

function glue_bottom() {
	page_height = get_page_height();
	content_height = document.vspace_marker_content.offsetTop;
	if (page_height < content_height) {
		px_shift = content_height - 413 - document.vspace_marker.offsetTop;
	} else {
		px_shift = page_height - 413 - document.vspace_marker.offsetTop;
	}
	document.vspacer.height = px_shift;
}