My DOM looks like:
<body> <div class="c1">
<div class="c2">
...
</div>
<div class="c3">
<div class="thisone">....</div>
</div>
</div>
<div class="c1">
<div class="c2">
...
</div>
<div class="c3">
<div class="thisone">....</div>
</div>
</div>
<div class="c1">
<div class="c2">
...
</div>
<div class="c3">
<div class="thisone">....</div>
</div>
</div>
</body>
The div element with class 'thisone' is hidden currently.
During a mouseover of the class c1, I want the div with 'thisone' to be visible, and hidden during a mouseout.
How can I do this using jQuery? I want to drill down as much as possible to make it efficient but I'm not sure exactly how to do that.