function showObr(obr)
{
	switch (obr)
	{
		case 'obr1':
			document.getElementById('obr1').style.display = 'inline';
			document.getElementById('obr2').style.display = 'none';

			document.getElementById('obr1_link').className = 'active';
			document.getElementById('obr2_link').className = 'norm';
		break;

		case 'obr2':
			document.getElementById('obr1').style.display = 'none';
			document.getElementById('obr2').style.display = 'inline';

			document.getElementById('obr1_link').className = 'norm';
			document.getElementById('obr2_link').className = 'active';
		break;
	}
}

var article = 1;
var timer;

function startSlideShow()
{
	showObr('obr' + article);

	article = article + 1;

	if (article > 2) article = 1;

	timer = setTimeout("startSlideShow()", 2000);
}