[javascript]
//save this code as jquery.verticalAlign.js
(function($){
$.fn.extend({
verticalAlign: function() {
//Iterate over the current set of matched elements
return this.each(function() {
var obj = $(this);
// calculate the new padding and height
var childHeight = obj.height();
var parentHeight = obj.parent().height();
var diff = Math.round( ( (parentHeight – childHeight) / 2) );
// apply new values
obj.css( { "display": "block", "margin-top": diff } );
});
}
});
})(jQuery);
//use like this:
jQuery(document).ready(function($) {
$("#someDiv").verticalAlign();
});
//webkit browsers require window.load():
jQuery(window).load(function()) {
$("#someDiv").verticalAlign();
});
[/javascript]