function showBlock (id) {
	if (document.getElementById('block'+id).style.display == "none") {
		$('#block'+id).show('slow');
		document.getElementById('arr'+id).innerHTML = "↑";
	}
		else {
		$('#block'+id).hide('slow');
		document.getElementById('arr'+id).innerHTML = "↓";
	}
}

function showBlockadd (id) {
	if (document.getElementById('blockadd'+id).style.display == "none") {
		$('#blockadd'+id).show('slow');
		document.getElementById('arr'+id).innerHTML = "↑";
	}
		else {
		$('#blockadd'+id).hide('slow');
		document.getElementById('arr'+id).innerHTML = "↓";
	}
}