function showTab(num) {
	for (var i = 1;i <= 3;i++) {
		document.getElementById('tab' + i).style.display = 'none';
		document.getElementById('theader' + i).className = 'button';
	}
	document.getElementById('tab' + num).style.display = 'block';
	document.getElementById('theader' + num).className = 'current';
}

function validate() {
	if (document.getElementById('contact').mib.value != '') {
		return false;
	}
	try {
		var validator = new FormValidator('contact');
	}
	catch (e) {
		alert(e);
	}
	var errBuffer = new StringBuffer();
	if (!validator.validateMail('email')) {
		errBuffer.append(messages.email_empty + '\n')
	}
	if (!validator.validatePhone('phone')) {
		errBuffer.append(messages.phone_empty + '\n')
	}
	if (errBuffer != '') {
		alert(errBuffer.toString());
		return false;
	}
	else {
		return true;
	}
}


function init () {
	detectIe6();
	initializemarquee();
}

window.onload = init;