function formCheck() {
var passed = false;
with (document.emailform) {
if (meno.value == "") {
alert("Please, write your name.");
meno.focus();
}
else if (email.value == "") {
alert("Please, write your email.");
email.focus();
 }
else if (email.value.indexOf("@") == -1){
alert ("Bad email");
email.focus();
}
else if (sprava.value == "") {
alert("Please, write your message.");
sprava.focus();
}
else {
passed = true;
   }
}
return passed;
}