function check()
{

  if (document.theform.Title.value=="")
     {
      alert("Lütfen Ünvaninizi Yazin!");
      document.theform.Title.focus();
      return false;
     }
  if (document.theform.First_Name.value=="")
     {
      alert("Lütfen Isminizi Yazin!")
      document.theform.First_Name.focus();
      return false;
     }
  if (document.theform.Last_Name.value=="")
     {
      alert("Lütfen Soyadinizi Yazin!")
      document.theform.Last_Name.focus();
      return false;
     }
  if (document.theform.Preferred_Phone.value=="")
     {
      alert("Lütfen Telefon Numaranizi Yazin!")
      document.theform.Preferred_Phone.focus();
      return false;
     }

  if (document.theform.Email_Address.value=="")
     {
      alert("Lütfen Eposta Adresinizi Yazin!")
      document.theform.Email_Address.focus();
      return false;
     }
  if (document.theform.Email_Address.value.length > 0 && !document.theform.Email_Address.value.match( /.+@.+$/ ) )
     {
     alert("Eposta hatasi!");
      return false;
     }
	if (document.theform.Email_Address.value.indexOf(".")<0)
     {
     alert("Eposta hatasi!");
     document.theform.Email_Address.focus();
      return false;
     }
	if (document.theform.Please_Add_Your_Comments.value=="")
     {
      alert("Lütfen Yorumlarinizi Yazin!")
      document.theform.Please_Add_Your_Comments.focus();
      return false;
     }

}