01.<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
02.<HTML>
03.<HEAD>
04.<TITLE> New Document </TITLE>
05.<META NAME="Generator" CONTENT="EditPlus">
06.<META NAME="Author" CONTENT="">
07.<META NAME="Keywords" CONTENT="">
08.<META NAME="Description" CONTENT="">
09.</HEAD>
10.
11.<BODY>
12.
13.<SCRIPT Language="JavaScript">
14.
15.function startCalc(){
16.interval = setInterval("calc()",1);
17.}
18.function calc(){
19.one = document.autoSumForm.price.value;
20.
21.totalfee1 = document.autoSumForm.totalfee.value = (one * 1) * .07;
22.
23.
24.priceandfee1 = document.autoSumForm.priceandfee.value = (one * 1) - totalfee1;
25.
26.document.autoSumForm.quantity.value = priceandfee1 / 20;
27.
28.
29.}
30.function stopCalc(){
31.clearInterval(interval);
32.}
33.</SCRIPT>
34.
35.<div style="width: 200px; text-align: center;">
36.<form name="autoSumForm">
37.
38.<table width="685" border="0">
39.<tr>
40.<td><div align="left">จำนวนเงิน</div></td>
41.<td><div align="left">ค่าธรรมเนียม</div></td>
42.<td><div align="left">จำนวนเงินหลังหักค่าธรรมเนียม</div></td>
43.<td><div align="left">จำนวนหน่วยที่ได้รับ</div></td>
44.</tr>
45.<tr>
46.<td width="144">
47.<div align="left">
48.<input class="right" type="text" name="price" value="" onFocus="startCalc();" onBlur="stopCalc();" id="price">
49.</div></td>
50.<td width="159"><div align="left">
51. <input class="right" type="text" name="totalfee" id="totalfee">
52.</div></td>
53.<td width="368"><div align="left">
54. <label for=""></label>
55. <input name="priceandfee" type="text" id="priceandfee">
56.</div></td>
57.<td width="368"><div align="left">
58. <label for=""></label>
59. <input name="quantity" type="text" id="quantity">
60.</div></td>
61.</tr>
62.</table>
63.<p> </p>
64.</form>
65.</div>
66.</BODY>
67.</HTML>
