JQuery :: Initial Content On Show / Hide Setup?

Is there a way to edit the following show hide set up to allow for initial div to be open. So for example instead of nothing coming up, #video1 would initially load and then when you click on li links it would load a new div in as coded replacing the initial video for example, if you clicked video 2 or 3 thumbnails?

HTML=
<ul id="brightCove">
<li onclick="javascript:doShowHide('video1');">
<a href="javascript://">video 1 thumbnail here</a>
</li>
<li onclick="javascript:doShowHide('video2');">
<a href="javascript://">video 2 thumbnail here</a>
</ul><div class=showhide" id="video1">
content for video 1 </div>
<div class="showhide" id="video2">
content for video 2 </div>

JS
$(document).ready(function() {
// Add ID of New Category in line below separated by Commas
$("#video1,#video2").hide();
});
doShowHide = function(idstr) {
$("div.showhide:visible").each(function () {
if (this.id != idstr) $(this).hide("fast");
});
$("div.showhide#"+idstr).show("fast");
}