function showhideForm() {
	var form = document.getElementById('form');
	if (form.style.display == 'block') {
		form.style.display = 'none';	
	} else {
		form.style.display = 'block';
	}
}

function hideForm () {
	var form = document.getElementById('form');
	form.style.display = 'none';
}

function showForm () {
	var form = document.getElementById('form');
	form.style.display = 'block';
}

function checkForm() {
	if (!document.getElementById('name').value || !document.getElementById('email').value  || !document.getElementById('phone').value || !document.getElementById('comment').value) {
		alert('Please fill out all fields');
		return false;
	}
	var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
	if (reg.test(document.getElementById('email').value) == false) {
		alert('Invalid Email Address');
		return false;
	}
	return true;
}