How to center a title ?

Hi,
I am using the standard ui-dialog plugin (jquery-ui-
personalized-1.6rc5.js).
How can I center the title in this code ?
$("#createDialog").dialog(
{
width: 415,
height: 280,
position:"center",
title:"creation",
resizable:false,
buttons: {
"Save":function(){creation();},
"Clearr":function(){$("#form1").each(function(){this.reset
();})}
}
}
);