/** 
* $Date: 2005-09-22T13:22:58JST $
* Various utility functions and so on.
*
* Auhtor: Satoru SATOH <ss&#64;gnome.gr.jp>
* Copyright (c) 2005 Satoru SATOH. All Rights Reserved.
*
* License applyed to my own part of this code:
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
* EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* Show or hide elements (id).
*/
function hideElement (element) { element.style.display = 'none'; }
function showElement (element) { element.style.display = ''; }
function hideElementById (id) { hideElement (document.getElementById (id)); }
function showElementById (id) { showElement (document.getElementById (id)); }
/**
* Output debug message (message) into the elements (id).
*/
function debugPrint (message, id) {
	document.getElementById (id).innerHTML = message;
}