function enableSubmitTbk()
{
	if (document.getElementById("tbkAu").value && document.getElementById("tbkTitle").value)
		document.getElementById("formSubmit").disabled = false;
	else
		document.getElementById("formSubmit").disabled = true;	 	
}

function enableSubmitContact()
{
	if (document.getElementById("cAu").value && 
		 document.getElementById("cMail").value && 
		 document.getElementById("cSubject").value)
		document.getElementById("formSubmit").disabled = false;
	else
		document.getElementById("formSubmit").disabled = true;	 
		
}