/******************************************************************************
Copyright (C) Matteo Lucarelli - matteo@matteolucarelli.net

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
******************************************************************************/

count=0
maxcount=5
dotimer=1;
im0 = new Image();
var timerID=0;

function updateimage(){
	if (dotimer==1){
	
		// reset previous button
		if (count>0){
			im0.src="img/butt"+count+".png";
			document.images['butt'+String(count)].src = im0.src;
		}

		// increase counter
		count++;
		if (count>maxcount) count=1;

		// highlight button
		im0.src="img/butt"+count+"h.png";
		document.images['butt'+count].src = im0.src;

		// update image
		im0.src="img/"+count+".jpg";
		document.images['animage'].src = im0.src;

		timerID=setTimeout("updateimage()",1000);
	}
}

function stoptimer(imnum){
		dotimer=0;
		
		// reset previous button
		if (count>0){
			im0.src="img/butt"+count+".png";
			document.images['butt'+count].src = im0.src;
		}
		
		// highlight button
		im0.src="img/butt"+imnum+"h.png";
		document.images['butt'+imnum].src = im0.src;

		// update image
		im0.src="img/"+imnum+".jpg";
		document.images['animage'].src = im0.src;
}

function starttimer(imnum){
		count=imnum;
		dotimer=1;
		if (timerID!=0) clearTimeout(timerID);
		updateimage();
}