我在Yaldex上找到了以下貨幣計算器,需要幫助進行一些更新。我足夠資源來編輯現有的Javascript,但就是這樣。代碼如下,以及工作的例子可以在這裏找到:http://www.yaldex.com/FSCalculators/MoneyCounter.htm更新Javascript計算器以實時計算多個總計
<script language="javascript" type="text/javascript">
/* Visit http://www.yaldex.com/ for full source code
and get more free JavaScript, CSS and DHTML scripts! */
<!-- Begin
function s(num, val) {
amount = num * 1; // amount is the num or NaN
sum = (!num ? 0 : num) * val; // the sum for that bill or coin
if (isNaN(amount)) { // if the entire is not a number
alert(
"' " + num + " ' is not a valid entry and that field will "
+ "not be included in the total money calculation."
);
return 0;
}
else
return sum; // if it is OK, send sum back
}
function money(form) {
hun = s(form.hun.value, 100); // Each amount is the returned value
fif = s(form.fif.value, 50); // for the amount in the s() function
twe = s(form.twe.value, 20);
ten = s(form.ten.value, 10);
fiv = s(form.fiv.value, 5);
one = s(form.one.value, 1);
hlf = s(form.hlf.value, .5);
qtr = s(form.qtr.value, .25);
dme = s(form.dme.value, .1);
nck = s(form.nck.value, .05);
pny = s(form.pny.value, .01);
// add up all the amounts
var ttl = hun + fif + twe + ten + fiv
+ one + hlf + qtr + dme + nck + pny;
// rounds total to two decimal places
ttl = "" + ((Math.round(ttl * 100))/100);
dec1 = ttl.substring(ttl.length-3, ttl.length-2);
dec2 = ttl.substring(ttl.length-2, ttl.length-1);
if (dec1 != '.') { // adds trailing zeroes if necessary
if (dec2 == '.') ttl += "0";
else ttl += ".00";
}
form.total.value = "$ " + ttl; // display total amount
}
// End -->
</script>
<form name=coinform>
<table border=1>
<tr>
<td align=center>$ 100</td>
<td align=center>$ 50</td>
<td align=center>$ 20</td>
<td align=center>$ 10</td>
<td align=center>$ 5</td>
<td align=center>$ 1</td>
</tr>
<tr>
<td align=center><input type=text name=hun size=3></td>
<td align=center><input type=text name=fif size=3></td>
<td align=center><input type=text name=twe size=3></td>
<td align=center><input type=text name=ten size=3></td>
<td align=center><input type=text name=fiv size=3></td>
<td align=center><input type=text name=one size=3></td>
</tr>
<tr>
<td colspan=6> </td>
</tr>
<tr>
<td> </td>
<td align=center>50 ¢</td>
<td align=center>25 ¢</td>
<td align=center>10 ¢</td>
<td align=center>5 ¢</td>
<td align=center>1 ¢</td>
</tr>
<tr>
<td> </td>
<td align=center><input type=text name=hlf size=3></td>
<td align=center><input type=text name=qtr size=3></td>
<td align=center><input type=text name=dme size=3></td>
<td align=center><input type=text name=nck size=3></td>
<td align=center><input type=text name=pny size=3></td>
</tr>
<tr>
<td colspan=5 align=center>
<input type=button name=calc value="Calculate" onClick="javascript:money(this.form)">
<input type=text name=total size=10>
</td>
</tr>
</table>
</form>
我已經決定了如何通過添加一個onkeyup事件到每個輸入字段更新實時共展宏圖,但我也願意喜歡在用戶輸入每個數量時顯示每個單位總金額的每個美元/硬幣金額添加額外字段,並實時更新所有金額的總金額。我還希望能夠以總計美元和總分(例如$ 100.00/10000美分)將總計顯示爲兩筆金額。我想它看起來或多或少像這樣:
$100 x ___ = $___ total
$50 x ___ = $___ total
.
.
.
5¢ x ___ = $___ total
1¢ x ___ = $___ total
GRAND TOTAL $_______/_______ cents
任何和所有的指導和幫助,將不勝感激。謝謝!