我正在创建一个类似调查的页面。我使用了三个基本的 javascript 函数,goNext(i)
它们隐藏了特定的 div 标签并显示了下一个 , goPrevious(i)
,它的作用几乎相同,但反过来,answerExists(questionNumber)
它检查是否所有单选按钮都被选中。从我创建的那一点开始answerExists(), goNext()
,我想goPrevious()
也是,停止响应。也许这与onsubmit()
功能有关,但我无法弄清楚。这些是 Javascript 函数:
function goNext(i) {
document.getElementById("div" + i).style.display = 'none';
document.getElementById("div" + (i + 1)).style.display = 'block';
}
function goPrevious(i) {
document.getElementById("div" + i).style.display = 'none';
document.getElementById("div" + (i - 1)).style.display = 'block';
}
function checkAnswers(questions) {
var answers = new Array(questions);
for(var i = 1; i <= questions; i++){
answers[i-1] = false;
var radio = document.getElementsByClassName('Radio' + i);
for (var j=0; j < radio.length; j++) {
if(radio[j].checked == true)
alert(radio[j].value)answers[i-1] = true;
}
for (var i = 0; i < questions; i++){
if(answers[i] == false){
alert("Please answer all questions.");
return false;
}
}
return true;
}
这是 HTML 表单:
<form id="content" action="getresults.jsp" method="post" onsubmit="return checkAnswers(2);">
<div id="div1" style="display: block;">
<strong>1. Question 1</strong><br><br>
<input id="radio1" class="radio1" name="radio1" onclick="if (this.__chk) this.checked = false" onmousedown="this.__chk = this.checked" type="radio" value="Answer1" />
Answer1<br><br><br><br>
<div class="auto-style1">
<input name="next" onclick="goNext(1);" type="button" value="Next" />
</div>
</div>
<div id="div2" style="display: none;">
<strong>2. Question 2</strong><br><br>
<input id="radio2" class="radio2" name="radio2" onclick="if (this.__chk) this.checked = false" onmousedown="this.__chk = this.checked" type="radio" value="Answer 2" />
Answer 2<br><br>
<input id="radio2" class="radio2" name="radio2" onclick="if (this.__chk) this.checked = false" onmousedown="this.__chk = this.checked" type="radio" value="dfgdgfdgf" />
dgfgddgf<br><br><br><br>
<div class="auto-style1">
<input name="previous" onclick="goPrevious(2);" type="button" value="Previous" />
<input name="submit" type="submit" value="Submit" />
</div>
</div>
</form>
它实际上都是动态创建的,但在我添加checkAnswers()
函数之前它仍然有效。