function check_input_money(obj)
{
rtn_val = $(obj).val().replace( /[^d|.]/g, '');
var price = /^d+(.d{0,2})?/.exec(rtn_val);
if(price != null){
unit_price = price[0];
$(obj).val(unit_price);
}else{
$(obj).val('');
}
}