function checkAmount(v_formName,v_fieldNames) {				
	v_amountSum		= 0;
	for (var i = 0; i < v_fieldNames.length; i++) {
	 v_amountSum = v_amountSum + document[v_formName][v_fieldNames[i]].value;				 
	}	
	return (v_amountSum != 0);
}
function checkBox(v_formName,v_fieldNames) {				
	v_amountSum		= 0;
	for (var i = 0; i < v_fieldNames.length; i++) {
	 if (document[v_formName][v_fieldNames[i]].checked)
	 	v_amountSum	= v_amountSum + 1;				 
	}	
	return (v_amountSum != 0);
}