// JavaScript Document

function show(){
		document.getElementById('navigation').style.display = 'block';		
	}
	function hide(){
		document.getElementById('navigation').style.display = 'none';
	}
	function check_form()
	{
		if (document.contact.name.value == '')
		{
			alert('Please write your name. How else am i gonna know who wrote me?');
			document.contact.name.focus();
			return false;
		}
		if (document.contact.comments.value == '')
		{
			alert('Doesn\'t make sense if you don\'t write some comments');
			document.contact.comments.focus();
			return false;
		}
		document.contact.submit();
	}