在一个项目里需要用JavaScript动态建立radio buttons，然后替换span element下的内容，在IE里能显示出来，可就是无法做选择，郁闷了半天，后来查网上资料发现是IE的BUG，说是 "IE doesn’t allow the name attribute to be changed after the element is created“，可我试了下Checkbox就不存在此问题。

原代码：

function createCxtjRadioButtons(data,cxtjId,cxtjTagId){     var tagCxtj = document.getElementById(cxtjTagId);     tagCxtj.removeChild(tagCxtj.childNodes[0]);     for (var key in data) {       var val = data[key];       var input = document.createElement("input");       input.setAttribute("name",cxtjId);       input.setAttribute("type","radio");       input.setAttribute("value",key);       tagCxtj.appendChild(input);       var label = document.createElement("label");       label.setAttribute("for",input_id);       label.appendChild(document.createTextNode(val));          tagCxtj.appendChild(label);      }     } 

解决后：

function createCxtjRadioButtons(data,cxtjId,cxtjTagId){     var tagCxtj = document.getElementById(cxtjTagId);     tagCxtj.removeChild(tagCxtj.childNodes[0]);     for (var key in data) {       var val = data[key];       var input = createElement("input", cxtjId);        input.setAttribute("type","radio");       input.setAttribute("value",key);       tagCxtj.appendChild(input);       var label = document.createElement("label");       label.setAttribute("for",input_id);       label.appendChild(document.createTextNode(val));          tagCxtj.appendChild(label);      }     }  function createElement(type, name) {    var element = null;     try {       // First try the IE way; if this fails then use the standard way       element = document.createElement('<'+type+' name="'+name+'">');    } catch (e) {       // Probably failed because we’re not running on IE    }    if (!element) {       element = document.createElement(type);       element.name = name;    }    return element; }    

参考：
1、http://www.thunderguy.com/semicolon/2005/05/23/setting-the-name-attribute-in-internet-explorer/
2、http://alt-tag.com/blog/archives/2006/02/ie-dom-bugs/