Question

我很难获得JavaScript

选中一个单选按钮并
选中至少一个复选框。

我目前的代码如下：

<body>
  <script type="text/javascript">
  if((document.form1.gender[0].checked===false) &&(document.form1.gender[1].checked===false))
  {  
    alert("You must make a choice");
  }
  function isOneChecked() {
    var chx = document.getElementsByTagName("input");
    for (i=0; i<chx.length; i+++++) {
      if (chx[i].type == "radio" && chx[i].checked) {
        return true;
      }
    }
    alert("You must select at least one");
  }
  </script>

  <p>
    <input type="radio" name="gender" value="male"> Male
    <input type="radio" name="gender" value="female"> Female
  </p>
  <p>Select all sport interests that apply.</p>
  <input type="checkbox" name="chkSport" value="football" />Football<br />
  <input type="checkbox" name="chkSport" value="baseball" />Baseball<br />
  <input type="checkbox" name="chkSport" value="basketball" />Basketball<br />
  <input type="checkbox" name="chkSport" value="soccer" />Soccer<br />
  <input type="checkbox" name="chkSport" value="trackandfield" />Track and Field<br />
  <input type="checkbox" name="chkSport" value="none" />None<br />

无法让JavaScript执行单选按钮和复选框功能

0 个答案: