根据面额输入张数，从而算出总数
要完成此效果需要两个步骤
第一步：把如下代码加入到<head>区域中
<SCRIPT LANGUAGE="JavaScript">
<!-- 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);
two = s(form.two.value, 2);
one = s(form.one.value, 1);
hlf = s(form.hlf.value, .5);
qtr = s(form.qtr.value, .2);
dme = s(form.dme.value, .1);
nck = s(form.nck.value, .05);
sxw = s(form.sxw.value, .02);
pny = s(form.pny.value, .01);
// add up all the amounts
var ttl = hun + fif + twe + ten + fi
|
