function calculate(){
	var yes_dost = document.form1.yes_dost.checked;
	var other_town = document.getElementById("other_town1").checked;
	var check = document.getElementById("5_transp").checked;
	var transp1 = document.getElementById("1_transp").checked;
	var transp2 = document.getElementById("2_transp").checked;
	var transp3 = document.getElementById("3_transp").checked;
	var transp4 = document.getElementById("4_transp").checked;
	var mail = document.getElementById("mail_click").checked;
	var fax = document.getElementById("fax_click").checked;

	if(mail==true)
	{
		document.getElementById("mail_on").style.display ="inline";
		document.getElementById("mail_off").style.display ="none";
		document.getElementById("mail_value1").focus();
	}
	else{
		document.getElementById("mail_off").style.display ="inline";
		document.getElementById("mail_on").style.display ="none";
	}
	if(fax==true)
	{
		document.getElementById("fax_on").style.display ="inline";
		document.getElementById("fax_off").style.display ="none";
		document.getElementById("fax_value1").focus();
	}
	else{
		document.getElementById("fax_off").style.display ="inline";
		document.getElementById("fax_on").style.display ="none";
	}


	if(yes_dost==true)
	{
		document.getElementById("regions").style.display ="inline";

		if(other_town==true){
			document.getElementById("company").style.display ="inline";
			if(check==true){
				document.getElementById("place").style.display ="inline";
				document.getElementById("place1").style.display ="none";
				document.getElementById("transp_company1").focus();
				document.getElementById("alt_company").style.display ="inline";

			}
			else{document.getElementById("place1").style.display ="inline";
			document.getElementById("place").style.display ="none";
			document.getElementById("alt_company").style.display ="none";}
		}
		else{
			document.getElementById("company").style.display ="none";
			document.getElementById("1_transp").checked =false;
			document.getElementById("2_transp").checked =false;
			document.getElementById("3_transp").checked =false;
			document.getElementById("4_transp").checked =false;
			document.getElementById("5_transp").checked =false;
			document.getElementById("transp_company").value ="";
			document.getElementById("alt_company").style.display ="none";
		}
	}
	else{
		document.getElementById("regions").style.display ="none";
		document.getElementById("company").style.display ="none";
		document.getElementById("1_transp").checked =false;
		document.getElementById("2_transp").checked =false;
		document.getElementById("3_transp").checked =false;
		document.getElementById("4_transp").checked =false;
		document.getElementById("5_transp").checked =false;
		document.getElementById("transp_company").value ="";
		document.getElementById("other_town1").checked =false;
		document.getElementById("other_town").checked =false;
	}

}