//  *****************************************************************
//  *   Import Drawback Calculator                                                *
//  *****************************************************************
//  *   Version 1                                                 *
//  *   Eric Lundberg 11/04/09                                        *
//  *****************************************************************
//  *   Import and Export Calculator Options              *
//  *   DO NOT DELETE ------                                        *
//  *****************************************************************
function do_math_import()
{
   var duties = eval(document.import_form.txt_duties.value);
   var components = eval(document.import_form.txt_components.value) / 100;
   var drawback = duties * components;
   document.import_form.txt_drawback.value = drawback.toFixed(2);
}

//  *****************************************************************
//  *   Export Drawback Calculator                                                *
//  *****************************************************************
//  *   Version 1                                                 *
//  *   Eric Lundberg 11/04/09                                        *
//  *****************************************************************
//  *   Import and Export Calculator Options              *
//  *   DO NOT DELETE ------                                        *
//  *****************************************************************
function do_math_export()
{
   var total_sales = eval(document.export_form.txt_total_sales.value);
   var pct_export_sales = eval(document.export_form.txt_pct_export_sales.value) / 100;
   var pct_goods_cost = eval(document.export_form.txt_pct_goods_cost.value) / 100;
   var pct_components = eval(document.export_form.txt_pct_components.value) / 100;
   var duty_rate = eval(document.export_form.txt_duty_rate.value) / 100;
   var drawback = total_sales * pct_export_sales * pct_goods_cost * pct_components * duty_rate;
   document.export_form.txt_drawback.value = drawback.toFixed(2);
}