下面的例子将展示其结果是没有重载显示提交。
当用户选择一个选项上面,一个函数叫做“getVote()”执行。该功能所引发的“的OnClick”事件
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The getVote() function does the following:
Create an XMLHttpRequest object
Create the function to be executed when the server response is ready
Send the request off to a file on the server
Notice that a parameter (vote) is added to the URL (with the value of the yes or no option)
判断控件的disabled属性是不是true,是的话return false;实现禁用radio的onclick事件并可再次启用它
方法一:(同时实现禁用,重新启用功能,只能针对button text类型的INPUT,对div无法禁用其onclick事件)
<input type="button" value="A button. Click me to see the alert box." onclick="alert('I am clicked.');" id="cmd1" />
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<input type="button" value="Click me to disable the first button" onclick="document.getElementById('cmd1').disabled=true;" />
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方法二,三:(实现移除radio的onclick事件,需再次重新注册事件,可以禁用div的onclick事件)
<input type="button" value="Click me to disable the onclick event on first button" onclick="document.getElementById('cmd1').onclick=function(){};" />
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三:
<input type="button" value="Click me to disable the onclick event on first button" onclick="document.getElementById('cmd1').onclick=null;" />