Wed 16 Jan 2008 06:03:39
**********ฟังชั่น*********
<script type="text/javascript">
function toFixed(num, pre){
num *= Math.pow(10, pre);
num = (Math.round(num, pre) + (((num - Math.round(num, pre))>=0.5)?1:0)) / Math.pow(10, pre);
return num.toFixed(2);
}
a = 162.295; // a = 162.295
toFixed(a, 2);
// End -->
</script>
กับฟอร์มนี้ครับ
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
<script type="text/javascript">
<!-- This script and many more are available free online at -->
<!-- The JavaScript Source!! http://javascript.internet.com -->
<!-- Created by: www.jdstiles.com -->
<!-- Begin
function startCalc(){
interval = setInterval("calc()",1);
}
function calc(){
T1 = document.autoSumForm.K1.value;
T2 = document.autoSumForm.K2.value;
T3 = document.autoSumForm.K3.value;
T4 = document.autoSumForm.K4.value;
T5 = document.autoSumForm.K5.value;
T7 = document.autoSumForm.K7.value;
T8 = document.autoSumForm.K8.value;
T9 = document.autoSumForm.K9.value;
var k9 = (T5 * 1) - (T8 * 1);
document.autoSumForm.K9.value = (k9 < 0)?0:k9;
document.autoSumForm.K10.value = (k9 < 0)?Math.abs(k9):"";
document.autoSumForm.K8.value = (Math.round(T7 * 1)*7/100);
document.autoSumForm.K4.value = (T1 * 1) - ((T2 * 1) + (T3 * 1));
document.autoSumForm.K5.value = (Math.round(T4 * 1)*7/100);
}
function stopCalc(){
clearInterval(interval);
}
// End -->
</script>
</HEAD>
<BODY>
<form name="autoSumForm" method="post" action="">
<br>
<INPUT id="K1" name="K1" onFocus="startCalc();" onBlur="stopCalc();">(1)<br>
<INPUT id="K2" name="K2" onFocus="startCalc();" onBlur="stopCalc();">(2)<br>
<INPUT id="K3" name="K3" onFocus="startCalc();" onBlur="stopCalc();">(3)<br>
<INPUT id="K4" name="K4" onFocus="startCalc();" onBlur="stopCalc();" readonly>1-(2+3) (4)<br>
<INPUT id="K5" name="K5" onFocus="startCalc();" onBlur="stopCalc();" readonly>(5)= (4 * 7%)<br>
<INPUT id="K7" name="K7" onFocus="startCalc();" onBlur="stopCalc();">(6)<br>
<INPUT id="K8" name="K8" onFocus="startCalc();" onBlur="stopCalc();" readonly>(7) = (6 x 7%)<br>
<INPUT id="K9" name="K9" onFocus="startCalc();" onBlur="stopCalc();" readonly>(8) = (7 - 5) ถ้ามีค่าติดลบให้เ่ท่ากับ 0 แต่ถ้ามีค่าบวกให้เท่ากับค่าบวก <br>
<INPUT id="K10" name="K10" onFocus="startCalc();" onBlur="stopCalc();" >(9) = (5 - 7) ถ้าข้อ 8 มีค่าติดลบให้นำค่าจากข้อ 8 มาใส่ช่อง 9 แต่ให้มีค่าเป็น บวก ถ้าหากช่อง 8 มีค่าเป็นบวกให้ช่อง 9 มีค่าเป็น 0 <br>
</BODY>
</HTML>
ขอบคุณ webmaster ล่วงหน้าครับผม
Wed 16 Jan 2008 18:00:58
document.autoSumForm.K5.value = toFixed(Math.round(T4 * 1)*7/100, 2);
Thu 17 Jan 2008 07:33:13
