无法在Firefox / Opera中设置焦点 [英] Unable to set focus in Firefox/Opera

问题描述

使用JavaScript将焦点放在表单元素上通常是非常简单的。
我无法在Firefox 12.0或Opera 11中运行。

适用于其他浏览器（Chrome，IE等）和Firefox 3.6。 b
$ b

简单HTML：

 < form action => 
< input type =radioid =focusID1name =sexvalue =male/>男性< br /> 
< input type =radioid =focusID2name =sexvalue =female/>女性< br /> 
< / form> 
  

简单的Javascript：

  var elem = document.getElementById（focusID2）; 
 if（elem！= null）{
 elem.focus（）; 
 
 $ / code> 

在 http://jsfiddle.net/4Ddtv/ 。


解决方案

Firefox按照预期工作。问题是用jsfiddle焦点和firefox没有突出显示的焦点元素。

这不是一个问题..用户错误！

Setting focus on a form element using JavaScript is usually very straight forward. I cannot get this working in Firefox 12.0 or Opera 11.

Works in other browsers (Chrome, IE etc) and Firefox 3.6.

Simple HTML:

<form action="">
    <input type="radio" id="focusID1" name="sex" value="male" /> Male<br />
    <input type="radio" id="focusID2" name="sex" value="female" /> Female<br />
</form>

​Simple Javascript:

var elem = document.getElementById("focusID2");
if (elem != null) {
   elem.focus();
}

Try this for yourself at http://jsfiddle.net/4Ddtv/. ​

解决方案

Firefox was working as expected. Issue was with jsfiddle focus and firefox not highlighting the focused element.

This is not an issue.. User error!

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