window.addEvent('domready', function() {
	
	//create our Accordion instance
	var myAccordion = new Accordion($('sidebar'), 'h3.naslovni', 'div.element', {
		opacity: false
	});

	// Safari fix
	if (navigator.appVersion.toLowerCase().indexOf('safari') > -1) {
		document.getElementById('sidebar').style.marginTop = '120px';
	}
});

function checkEmail(str) {
	return /^(\w+\.)*(\w+)@(\w+\.)+([a-zA-Z]{2,6})$/.test(str);
}

function cm(f) {
	if (checkEmail(f.email.value)) {
		if (!f.beta.checked && !f.notify.checked) {
			alert('You have to check at least one checkbox.');
		} else {
			f.method = 'post';
			f.submit();
		}
	} else {
		alert('Please, enter valid e-mail address.');
	}
}