function popup(url, win_title, features) {
		new_win = window.open(url, win_title, features);
		new_win.moveTo(100,100);
		new_win.focus();				
	}

	function set_cursor(cursor_style) {
		window.style.cursor = cursor_style;
	}

	function popup_help(help_topic, path_to_web_root) {
		popup(path_to_web_root + "popups/popup_help.php?topic=" + help_topic, "win_popup_help", "height=400, width=400, toolbar=0, scrollbars=1");
	}