function toggleDiv(id)
{
var div = document.getElementById(id);
var current = div.style.display;

if (current == 'block') 
div.style.display = 'none';
 else 
div.style.display = 'block';
}


 
function regionalswitch() {
	
	current_status=document.getElementById('regional').style.display;
	//alert(current_status);
	
	if (current_status!='block') 
	{ 
		document.getElementById('regional').style.display='block'; 
		document.getElementById('pfeil').src='/_img/down.gif'; 
	} 
	else
	{ 
		document.getElementById('regional').style.display='none'; 
		document.getElementById('pfeil').src='/_img/up.gif';  
	}
}