jquery how to get the page's current screen top position?
<p>jquery how to get the page's current screen top position? </p>

<p>If I scroll my mouse wheel to some part of the page, how do I get the page's current top position? </p>

<p>I want click one element in my page, then open a div which top is to current screen top. </p>

<p>So just put the current screen top position to:</p>

<pre><code>$('#content').css('top','current position');
</code></pre>

<p>And </p>

<pre><code>#content
{
position:absolute;
left:100px;
}
</code></pre>
