function CheckIt(f) {

    if (f.FirstName.value == "") {
			alert("You have not specified your First Name.\nPlease do so now.");
			f.FirstName.focus();
			f.FirstName.select();
			return false;
	}
	
    if (f.LastName.value == "") {
			alert("You have not specified your Last Name.\nPlease do so now.");
			f.LastName.focus();
			f.LastName.select();
			return false;
	}
	
    if (f.Email.value == "") {
			alert("You have not specified your Email address.\nPlease do so now.");
			f.Email.focus();
			f.Email.select();
			return false;
	}

	
	return true;
}
