function hide(id)
{
	document.getElementById(id).style.display = "none";	
}

function show(id)
{
	document.getElementById(id).style.display = "inline";		
}


function typeSelected(type)
{
	switch(type)	
	{
		case "einzelheft":
			show('heft');
			hide('book');
			hide('gift');
		break;	
		
		case "probeabo":
			hide('heft');
			hide('book');
			hide('gift');
		break;	
		
		case "jahresabo":
			hide('heft');
			show('book');
			hide('gift');
		break;	
		
		case "foerderabo":
			hide('heft');
			show('book');
			hide('gift');
		break;	
		
		case "institutionenabo":
			hide('heft');
			show('book');
			hide('gift');
		break;	
		
		case "geschenkabo":
			hide('heft');
			show('book');
			show('gift');
		break;
	}
}