function checkForm() {
	if (document.getElementById("email").value=="")	{
		alert("Error: Field E-mail is empty.");
		return false;
	} 

	if (document.getElementById("fio").value=="")	{
		alert("Error: Field Name is empty.");
		return false;
	} 
	
	if (document.getElementById("subj").value=="")	{
		alert("Error: Field Subject is empty.");
		return false;
	} 

	if (document.getElementById("body").value=="")	{
		alert("Error: Field Message is empty.");
		return false;
	} 
	
	return true;
}