select link, automatically checks the checkbox to the left of it

I want to a user to be able to hover over a link, click it, and it will automatically check the checkbox to the left of it, and when they select it, it will uncheck the box.

How do I do this?

开发者_StackOverflow中文版<input type="checkbox" name="favorite_color" value="Orange"> <a href="#" rel="favorite_color">Orange</a>

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Instead of a link (anchor), use a <label> which is designed for this:

<input type="checkbox" name="favorite_color" id="favorite_color" value="Orange"> 
<label for="favorite_color">Orange</label>

Or without the id, wrapped around it:

<label><input type="checkbox" name="favorite_color" value="Orange"> Orange</label>

With both of these there's no JavaScript required, just built-in browser behavior.

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$('a').click(function() {
  var checkbox = $(this).prev('input[type="checkbox"]')
  checkbox.attr('checked', checkbox.is(':checked'));
}

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<input type="checkbox" id="chk" name="favorite_color" value="Orange">
<a href="#" rel="favorite_color" onclick="document.getElementById('chk').checked = true;"> Orange</a>

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Does it have to be a link? You could just underline/highlight a span inside a label.

<label>
    <input type="checkbox" name="favorite_color" value="Orange">
    <span class="make_it_look_like_a_link">Orange</span>
</label>