How to make a jquery arrow show/hidden like picasa?
<p>How to make a jquery arrow show/hidden like picasa?</p>

<p>mouse over left part of the image's div, show the left arrow, 
mouse over right part of the image's div, show the right arrow?</p>

<p>some example like <a href="https://picasaweb.google.com/104706700962389688105/TheWave2011CoyoteButtesNorthVermilionCliffs?feat=featured#5621945010772287442" rel="nofollow">https://picasaweb.google.com/104706700962389688105/TheWave2011CoyoteButtesNorthVermilionCliffs?feat=featured#5621945010772287442</a></p>

<p>Thanks.</p>

<p>some get mouse position's code:</p>

<pre><code>function checkS(e){
// capture the mouse position
    var posx = 0;
    var posy = 0;
    if (!e) var e = window.event;
    if (e.pageX || e.pageY)
    {
        posx = e.pageX;
        posy = e.pageY;
    }
    else if (e.clientX || e.clientY)
    {
        posx = e.clientX;
        posy = e.clientY;
    }

    document.getElementById('pos').innerHTML = 'Mouse position is: X='+posx+' Y='+posy;

    document.getElementById('pos').style.left = posx;
    document.getElementById('pos').style.top = posy;
}
</code></pre>
