/**
 * contentinum - accessibility websites Copyright (c) 2006-2008 jochum-mediaservices, Katja Jochum (http://www.jochum-mediaservices.de)
 * @version    $Id: imageline.js $Rev: 550 $ $Date: 2008-08-16 12:08:24 +0200 (Sa, 16 Aug 2008) $ mike $
 */
var mediaArray = {'#setfilter select' : function(el){el.onchange = function(){document.selectimageline.submit(); }}}; Behaviour.register(mediaArray);

window.addEvent('domready', function() {
	var url = '/ajax/imageline/';
	var imgnum = 1;

	var imagesAjax = new Ajax(url, {
		method: 'get',
		update: $('changeImg')
	});


	var next = function(){
		var num = imgnum;
		if(num >= numberimages){imgnum = 1;	} else {imgnum = imgnum + 1;}
		imgid = imagedatas(imgnum);
		imagesAjax.request('lineid=' + imageline + '&imgid=' + imgid );
		$('imgNumber').innerHTML = imgnum;
	}

	var back = function(){
		var num = imgnum;
		if(num == 1){imgnum = numberimages;	} else {imgnum = imgnum - 1;}

		imgid = imagedatas(imgnum);
		imagesAjax.request('lineid=' + imageline + '&imgid=' + imgid );
		$('imgNumber').innerHTML = imgnum;
	}

	$('getnext').addEvent('click', function(e) {
		e = new Event(e).stop();
		next();
	});

	$('getback').addEvent('click', function(e) {
		e = new Event(e).stop();
		back();
	});

});