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我真的很新寫javascript（借用和編輯，不是那麼新）。因此，藉助谷歌和代碼專家和Adobe Cookbook的一點幫助，我已經將這種簡單的表單嵌入iPad出版物中（這只是我的測試，而不是最終產品）。如果調試控制檯和它似乎通過W3C合規性，我已經得到了這一點，沒有錯誤，但它也沒有做任何事情！它不會生成答案？我希望有人能幫助我，或讓我走向正確的方向。該頁面的代碼如下：在此先感謝...Javascript窗體計算器沒有答案
<body>
<form id="form1" name="form1" method="post" action="">
<table width="500" border="1">
<tr>
<th scope="col">Item</th>
<th scope="col">Cost 1</th>
<th scope="col">Cost 2</th>
</tr>
<tr>
<th scope="row">Manikin</th>
<td><input type="text" name="ManikinCost1" id="ManikinCost1" tabindex="1" /></td>
<td><input type="text" name="ManikinCost2" id="ManikinCost2" tabindex="2" /></td>
</tr>
<tr>
<th scope="row">Instructor</th>
<td><input type="text" name="InstructorCost1" id="InstructorCost1" tabindex="3" /></td>
<td><input type="text" name="InstructorCost2" id="InstructorCost2" tabindex="4" /></td>
</tr>
<tr>
<th scope="row">Books</th>
<td><input type="text" name="BooksCost1" id="BooksCost1" tabindex="5" /></td>
<td><input type="text" name="BooksCost2" id="BooksCost2" tabindex="6" /></td>
</tr>
<tr>
<th scope="row">Totals</th>
<td><input type="text" name="TotalsCost1" id="TotalsCost1" tabindex="7" /><span id="TotalsCost1"></span></td>
<td><input type="text" name="TotalsCost2" id="TotalsCost2" tabindex="8" /><span id="TotalsCost2"></span></td>
</tr>
<tr>
<th scope="row">Savings</th>
<td colspan="2"><input type="text" name="Savings" id="Savings" /><span id="Savings"></span></td>
</tr>
</table>
<p>
<input type="button" name="calculate" id="calculate" value="Calculate" />
</p>
<p> </p>
<p> </p>
</form>
<script type="text/javascript">
var btn = document.getElementById('calculate');
btn.onclick = function() {
//get the input values
var ManikinCost1 = parseInt(document.getElementById('ManikinCost1').value);
var ManikinCost2 = parseInt(document.getElementById('ManikinCost2').value);
var InstructorCost1 = parseInt(document.getElementById('InstructorCost1').value);
var InstructorCost2 = parseInt(document.getElementById('InstructorCost2').value);
var BooksCost1 = parseInt(document.getElementById('BooksCost1').value);
var BooksCost2 = parseInt(document.getElementById('BooksCost2').value);
// get the elements to hold the results
var TotalsCost1 = document.getElementById('TotalsCost1');
var TotalsCost2 = document.getElementById('TotalsCost2');
var Savings = document.getElementById('Savings');
// create an empty array to hold error messages
var msg = [];
// check each input value, and add an error message to the array if it's not a number
if (isNaN(ManikinCost2)) {
msg.push('Manikin Cost 2 is not a number');
// the value isn't a number
}
if (isNaN(InstructorCost1)) {
msg.push('Instructor Cost 1 is not a number');
// the value isn't a number
}
if (isNaN(InstructorCost2)) {
msg.push('Instructor Cost 2 is not a number');
// the value isn't a number
}
if (isNaN(BooksCost1)) {
msg.push('Book Cost 1 is not a number');
// the value isn't a number
}
if (isNaN(ManikinCost1)) {
msg.push('Manikin Cost 1 is not a number');
// the value isn't a number
}
if (isNaN(BooksCost2)) {
msg.push('Book Cost 2 is not a number');
// the value isn't a number
}
// if the array contains any values, display an error message
if (msg.length > 0) {
TotalsCost1.innerHTML = msg.join(', ');
} else {
TotalsCost1.innerHTML = + (ManikinCost1 + InstructorCost1 + BooksCost1);
TotalsCost2.innerHTML = + (ManikinCost2 + InstructorCost2 + BooksCost2);
Savings.innerHTML = + (TotalsCost1 - TotalsCost2);
}
};
</script>
</body>