$('document').ready(function() {
$('span.balloon').hide();
$('span.ballooned').mouseover(function(event){
if ( this.balloonid ) {
var blnArr = $("#" + this.balloonid);
if (blnArr[0]) {
$( blnArr[blnArr.length - 1] ).css('display', 'inline');
};
}
});
});
... , ... : expando ( "baloonid" ) - .