function show_plan(ly1id,ly2id) {
	var ly1 = document.getElementById(ly1id);
	var ly2 = document.getElementById(ly2id);
	ly1.style.display='block';
	ly2.style.display='block';
	document.getElementsByTagName("html")[0].className='noscroll';
	return false;
}

function hide_plan(ly1id,ly2id) {
	var ly1 = document.getElementById(ly1id);
	var ly2 = document.getElementById(ly2id);
	ly1.style.display='none';
	ly2.style.display='none';
	document.getElementsByTagName("html")[0].className='scroll';
	return false;
}

function show_picture(picfile) {
	var picobj = document.getElementById('grossbild');
	var picly = document.getElementById('bildansicht');
	var inhly = document.getElementById('inhalt-rechts-links');
	if (picly.style.display=='block') {
		hide_picture();
	}
	else {
		inhly.className='ausgeblendet';
		picobj.src=picfile;
		picly.style.display='block';
	}
}

function hide_picture() {
	var picobj = document.getElementById('grossbild');
	var picly = document.getElementById('bildansicht');
	var inhly = document.getElementById('inhalt-rechts-links');
	inhly.className='';
	picly.style.display='none';
	picobj.src='bilder/logo.jpg';
}