$(document).ready(function() {
	$('a').each(function() {
		if($(this).attr('href') == window.location.href) {
			$(this).addClass("active");
		}
		if(window.location.href.indexOf('com/optika') != -1) {
			$('#za-nas').addClass("active");
		}
		if(window.location.href.indexOf('/zrenie') != -1) {
			$('#uslugi').addClass("active");
		}
		if(window.location.href.indexOf('produkti') != -1) {
			$('#produkti').addClass("active");
		}
	});
});

function register() {
	var firstname = document.getElementById('firstname').value;
	var lastname = document.getElementById('lastname').value;
	var email = document.getElementById('email').value;
	var captcha = document.getElementById('captcha').value;
		
	if(firstname == null || firstname == "" || !isNaN(firstname)) {
		alert('Некоректно име!');
		return false;
	}
	if(lastname == null || lastname == "" || !isNaN(lastname)) {
		alert('Некоректна фамилия!');
		return false;
	}
	if(captcha == null || captcha == "") {
		alert('Грешен верифициращ код!');
		return false;
	}
	if(!isValidEmail(email)) {
		return false;
	}
	return true;
}

function isValidEmail(strEmail){
  validRegExp = /^[^@]+@[^@]+.[a-z]{2,}$/i;
  // strEmail = document.forms[0].email.value;

   // search email text for regular exp matches
    if (strEmail.search(validRegExp) == -1) 
   {
      alert('Грешен email адрес!');
      return false;
    } 
    return true; 
}