任何人都有一些脚本在按下[关闭]后禁用提交按钮

Question

Can anyone tell me how to disable the submit button after it has been pressed 20 times? The HTML runs like this: <input type=submit name='sub' value='submit' onClick='this.disabled=true;return true;doSection(loading);'> and this code <p><input type="submit" name="submit" value="Submit" disabled /></p> What should I do so that after pressing the button 20 times, it is dsabled?

Answer 1

You can have a counter that gets updated with every click on the button, when the counter has reached 20, disable it:

count = 0;
button = document.getElementsByTagName("input")[0] 
/*assuming it's the only submit button in the page */
button.onclick = function() {
 count++;
 if (count == 20) {
   this.disabled = true;
 }
};