function init(val) {
	document.getElementById(val).focus();
}
			
function isEmpty(obj){
	if((obj.value == null) || (obj.value.length == 0) || (obj.value.charAt(0) == ' ')) return true;
	return false;
}

// do a little form verifying
function validate(f) {
	if (isEmpty(f.barcode)) {
		alert ('You have not entered a valid Barcode');
		return false;
	}
	if (f.barcode.value.length < 13) {
		alert ('You have not entered a valid Barcode');
		return false;
	}
	if (!f.barcode.value.match('1536000')) {
		alert ('You have not entered a valid Barcode');
		return false;
	}
	if (isEmpty(f.pin)) {
		alert ('You have not entered a valid PIN number');
		return false;
	}
	if (f.pin.value.length < 4) {
		alert ('You have not entered a valid PIN number');
		return false;
	}
	return true;
}