var prrowcount = 0;

function addPRRow() {
	var tablebody = $('edit_pr');
	new Ajax.Request('/blank.php', {
		parameters: {
			'do': 'user_getPRRow'
		},
		method: 'get',
		evalScripts: true,
		onSuccess: function(transport) {
			tablebody.insert(transport.responseText);
			prrowcount++;
		}
	});
	return true;
}

function removePRRow(node) {
	if(prrowcount != 1) {
		var tablebody = $('edit_pr');
		var after = node.next();
		tablebody.removeChild(node);
		$$('#edit_pr tr').each(function(item, count) {
			item.removeClassName('odd').removeClassName('even').addClassName((count%2 == 0 ? 'odd' : 'even'));
		});
		new Ajax.Request('/blank.php', {
			parameters: {
				'do': 'user_updatePRRowCount'
			},
			method: 'get'
		})
		return true;
	}
}