function validate_form(formular)
	{
	if (formular.jmeno.value=="")
	      {
	         alert("Name is required");
			 formular.jmeno.focus();
	         return false;
	       }
	else if (formular.email.value=="") 
			{
	         alert("E-mail address is required");
			 formular.email.focus();
	         return false;
			}
	else if (formular.subject.value=="") 
			{
	         alert("Subject is required");
			 formular.subject.focus();
	         return false;
			}

	  promenna = new Date();
	  rok = promenna.getFullYear()
   	if (formular.kontrola.value==rok) {return true;} else {
				alert ("Wrong anti-spam protection");
				formular.kontrola.focus();
				return false;
		}
	}
	
function antispam(formular){
	  promenna = new Date();
	  rok = promenna.getFullYear()
   	if (formular.kontrola.value==rok) {return true;} else {
				alert ("Wrong anti-spam protection");
				formular.kontrola.focus();
				return false;
		}
}