PHP下拉框内容随单选框内容变化

这久在修改一个项目的小东西,要求把下拉框改为单选框,由于代码封闭,修改不了获取函数,所以想了个办法让下拉框的内容随单选框的内容变化,下面把代码分享给大家:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>PHP下拉框对单选框变化</title>
<script type="text/javascript">
var m = "5";
document.getElementById("test").value= m;

</script>

</head>

<body>

<input type="text" name="test" id="test">

<select name="sel" id="sel" onchange="look();">
<option value="1" >11</option>
<option value="2" selected>22</option>
<option value="3">33</option>
</select>


<INPUT TYPE="radio" NAME="a" value="1" onclick="check();">aaaaaaaaaa<br>
<INPUT TYPE="radio" NAME="a" value="2" onclick="check();">bbbbbbbbb<br>
<INPUT TYPE="radio" NAME="a" value="3" onclick="check();">cccc<br>
<script LANGUAGE="javascript">
<!--
function check()
{
 var sel = 0;
 for (var i = 0; i < document.getElementsByName("a").length; i++)
  {
    if(document.getElementsByName("a")[i].checked)
     {
       sel = document.getElementsByName("a")[i].value;
    }
  } 
   
  var m = sel;
 for(var i = 0;i<document.getElementById("sel").length;i++)
        { 
         with(document.getElementById("sel").options[i])
  { 
  if(value == m)
  {
  selected = true;
   }
 }
}

alert(sel);
}
//-->
</script>
<script type="text/javascript">

</script>
</body>
</html>
posted @ 2015-08-28 12:32  linuxnewbie  阅读(485)  评论(0编辑  收藏  举报