// JavaScript Document
function goTo(URLStr) { location = URLStr; }
function registration(){
	//cek username
	var username = document.reg.username.value;
	if (username == ""){
		alert('username tidak boleh kosong');
		document.reg.username.focus();
		return false;
	}
	//cek password
	var password = document.reg.password.value;
	var password2 = document.reg.password2.value;
	if (password == ""){
		alert('Password kosong');
		document.reg.password.focus();
		return false;
		}else{
		if (password2 ==""){
			alert('Password kedua kosong');
			document.reg.password.focus();
			return false;
		}else {
			if (password!=password2){
				alert('Password tidak cocok');
				return false;
			}
		}
	}
	//cek nama
	var nama = document.reg.nama.value;
	if (nama == ""){
		alert('Nama tidak boleh kosong');
		document.reg.nama.focus();
		return false;
	}
	//cek alamat
	var alamat = document.reg.alamat.value;
	if (alamat == ""){
		alert('Alamat tidak boleh kosong');
		document.reg.alamat.focus();
		return false;
	}
	//cek Kode Pos
	var kodepos = document.reg.kodepos.value;
	if (kodepos == ""){
		alert('Kode pos tidak boleh kosong');
		document.reg.kodepos.focus();
		return false;
	}
	//cek email
	var email = document.reg.email.value;
	if (email == ""){
		alert('Email tidak boleh kosong');
		document.reg.email.focus();
		return false;
	}
	
	//cek Telepon
	var telepon = document.reg.telepon.value;
	if (telepon == ""){
		alert('Telepon tidak boleh kosong');
		document.reg.telepon.focus();
		return false;
	}
	
	//cek Handphone
	var handphone = document.reg.handphone.value;
	if (handphone == ""){
		alert('Handphone tidak boleh kosong');
		document.reg.handphone.focus();
		return false;
	}
	//cek No KTP
	var noktp = document.reg.noktp.value;
	if (noktp == ""){
		alert('No KTP tidak boleh kosong');
		document.reg.noktp.focus();
		return false;
	}

}
function update (harga,berat) {
	var a = document.frm_buy.qty.value;
	var b = a*harga;
	var c = a*berat;
	document.frm_buy.harga.value = b;
	document.frm_buy.berat.value = c;
}