// JavaScript Document
function confirm_cu()
{
	
	var name 		= document.getElementById("name").value;
	var address 	= document.getElementById("address").value;
	var mail 		= document.getElementById("mail").value;
	var message		= document.getElementById("message").value;
	var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;

	if (name == "")
	{
		alert ("name is empty")
		document.getElementById("name").focus();
		return false;
	}
	
	if (address == "")
	{
		alert ("address is empty")
		document.getElementById("address").focus();
		return false;
	}
		
	if (mail == "")
	{
		alert ("e-mail is empty")
		document.getElementById("mail").focus();
		return false;
	}
	

	
	if (filter.test(mail))	{}
	else 
	{alert('Incorrect email address');document.getElementById("mail").focus();return false;}
	
	
	if (message == "")
	{
		alert ("message is empty")
		document.getElementById("message").focus();
		return false;
	}
	
	

}