Sales Tax Calculator

Gordon Hudson Dec 18, 2001

This script adds a fixed percentage to an order total in a form. The percentage added is dependent on the option chosen from a menu. It was written to add sales tax (VAT) to an online ordering system but could be used to add shipping or any other fixed percentage amount. IE, NS6+

The JavaScript Source: Forms: Sales Tax Calculator

Simply click inside the window below, use your cursor to highlight the script, and copy (type Control-c or Apple-c) the script into a new file in your text editor (such as Note Pad or Simple Text) and save (Control-s or Command-s). The script is yours!!!

<!-- TWO STEPS TO INSTALL SALES TAX CALCULATOR:

1.  Copy the coding into the HEAD of your HTML document
  2.  Add the last code into the BODY of your HTML document  -->

<HEAD>

</script>

</HEAD>

<BODY>

<CENTER>
<FORM NAME="myform">
<table border="1">
  <tr>
    <td>Total excluding VAT</td>
    <td>
      <input type="text" name="total">
    </td>
  </tr>
  <tr>
    <td>VAT status</td>
    <td>
      <select name="vat">
        <option value="1.175" selected>In Europe (with VAT)</option>
        <option value="1.00">Outside Europe (no VAT)</option>
      </select>
    </td>
  </tr>
  <tr>
    <td>Total including VAT</td>
    <td>
      <input type="text" name="amount">
    </td>
  </tr>
  <tr>
    <td> </td>
    <td>
      <input type="button" value="Calculate" onClick="doMath()" name="button">
    </td>
  </tr>
</table>
</FORM>
</CENTER>

<p><center>
<font face="arial, helvetica" size"-2">Free JavaScripts provided<br>
by <a href="http://javascriptsource.com">The JavaScript Source</a></font>
</center><p>

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Sales Tax Calculator

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Total excluding VAT
VAT status
Total including VAT