function showAdvice(advice) {
	
	$('advice').innerHTML = '';
	
	if(advice == 'werk') {
		$('transportQuestion').innerHTML = '';
		showTransport(0,0);
	}
	var val = 'advice=' + advice;
	
	val += '&werk_j=' + $('ja_w').checked;
	val += '&werk_n=' + $('nee_w').checked;
	try {
	
		if(advice == 'transport' || advice == 'normaal') {
			val += '&trans_j=' + $('ja_tr').checked;
			val += '&trans_n=' + $('nee_tr').checked;
		}
	} catch(e) {}
	var ajaxAdvice = new Ajax.Updater(
	'advice',
	'tab2_advies.php',
	{
		method: 'post',
		parameters: val
	});
}

function showTransport(b,selected) {
	if(b == 1) { showAdvice('leeg'); }
	var val = 'show=' + b + '&selected=' + selected;
	var ajaxTrans = new Ajax.Updater(
	'transportQuestion',
	'tab2_advies.php',
	{
		method: 'post',
		parameters: val
	});
}

function enableTab3(set) {
	if(set == true) {
		$('stap_3T').innerHTML = "<a href='tab3.php'>3. Mogelijke opslagvoorzieningen</a>";
		$('stap_4T').innerHTML = "<a href='tab4.php'>4. Voorschriften</a>";
		$('piep').style.display = 'inline-block';
		$('printer').style.marginTop = '0px';
	}
	else if(set == false) {
		$('stap_3T').innerHTML = "3. Mogelijke opslagvoorzieningen";
		$('stap_4T').innerHTML = "4. Voorschriften";
		$('piep').style.display = 'none';
		$('printer').style.marginTop = '35px';
	} else if(set == 'semi') {
		$('stap_3T').innerHTML = "3. Mogelijke opslagvoorzieningen";
		$('stap_4T').innerHTML = "4. Voorschriften";
		$('piep').style.display = 'none';
		$('printer').style.marginTop = '35px';
		
	}
}

function saveWerk(option) {
	
	var val = "save=werk&set="+option;
	
	var ajaxTrans = new Ajax.Request(
	'tab2_advies.php',
	{
		method: 'post',
		parameters: val
	});
}

function saveTransport(option) {
	
	var val = "save=transport&set="+option;
	
	var ajaxTrans = new Ajax.Request(
	'tab2_advies.php',
	{
		method: 'post',
		parameters: val
	});
}

function setTab2(transport, werk) {
	
	try {
		if(transport == '' && werk == '')
			return;
		else {
			$(werk+'_w').checked = true;
			
			if(werk == 'ja') {
				showAdvice('werk');
				enableTab3(false);
			} else {
				showTransport(1,transport);
				
				if(transport == 'ja') {
					showAdvice('transport');
					enableTab3(false);
				} else if(transport == 'nee') {
					//alert("test");
					showAdvice('normaal');
					enableTab3(true);
				} 
			}
		}
	} catch(e) {}
	
}