function fCekForm() {
	var xForm = document.formSignup;
	if (xForm.txtUsername.value.length == 0) {
		alert("Silahkan isi username!");
		xForm.txtUsername.focus();
		return false;		
	} else if (xForm.txtPassword.value.length < 6) {
		alert("Password minimal 6 karakter!");
		xForm.txtPassword.focus();
		return false;
	} else if (xForm.txtPassword.value != xForm.txtPassword2.value) {
		alert("Password yang anda isikan pada kotak password harus sama dengan kotak ulangi password!");
		xForm.txtPassword2.focus();
		return false;		
	} else if (xForm.txtEmail.value.length == 0) {
		alert("Silahkan isi e-mail!");
		xForm.txtEmail.focus();
		return false;
	} else if ((xForm.txtEmail.value.indexOf('@')==-1) || (xForm.txtEmail.value.indexOf('.')==-1)) {
		alert("Format e-mail tidak valid!");
		xForm.txtEmail.focus();
		return false;
	} else if (xForm.txtFirstname.value.length == 0) {
		alert("Silahkan isi nama depan!");
		xForm.txtFirstname.focus();
		return false;
	} else if (xForm.txtBirthplace.value.length == 0) {
		alert("Silahkan isi tempat lahir!");
		xForm.txtBirthplace.focus();
		return false;
	} else if(xForm.txtBirthday.value.length == 0) {
		alert("Silahkan isi tanggal lahir!");
		xForm.txtBirthday.focus();
		return false;
	} else if(xForm.cmbCountry.value == 0 && xForm.txtOtherCountry.value.length == 0){
		alert("Silahkan isi negara!");
		xForm.cmbCountry.focus();
		return false;
	} else if(xForm.cmbCity.value == 0 && xForm.txtOtherCity.value.length == 0){
		alert("Silahkan isi lokasi!");
		xForm.cmbCity.focus();
		return false;	
	} else if (xForm.txtHeight.value.length == 0) {
		alert("Silahkan isi tinggi badan!");
		xForm.txtHeight.focus();
		return false;
	} else {
		return true;
	}	
}