function showhide(id) {
	if (document.getElementById(id).style.display == 'none') {
		showelement(id);
	} else {
		hideelement(id);
	}
}

function hideelement(id) {
	document.getElementById(id).style.display = 'none';	
	document.getElementById(id + 'arrow').src = 'images/icons/right.gif';	
	document.getElementById(id + 'field').value = '2';		
}

function showelement(id) {
	document.getElementById(id).style.display = 'block';
	document.getElementById(id + 'arrow').src = 'images/icons/down.gif';	
	document.getElementById(id + 'field').value = '1';		
}