function checkEmail (strng) {
var error="";
var success = 1;
if (strng == "") {
   error = "You didn't enter an email address.\n";
}

	var emailFilter=/^.+@.+\..{2,3}$/;
	if (!(emailFilter.test(strng))) { 
	   error = alert("Adresa de e-mail nu este corecta.\n");
	   success = 0;
	}
	else {
//test email for illegal characters
	   var illegalChars= /[\(\)\<\>\,\;\:\\\"\[\]]/
		 if (strng.match(illegalChars)) {
		  error = alert("Numele de email contine caractere ilegale.\n");
		 success = 0;
	   }
	}
	if(!success) {
		return false;
	}
	else {
		return true;
	}    
}