function showinformation(x) {
	if ( x == 'on' )
	{
		document.getElementById('information').style.display = 'block';
		document.getElementById('infobutton').className = 'buttonon';
		document.getElementById('imagesbutton').className = 'buttonoff';
	}
	if ( x == 'off' )
	{
		document.getElementById('information').style.display = 'none';
		document.getElementById('infobutton').className = 'buttonoff';
		document.getElementById('imagesbutton').className = 'buttonon';
	}
}