Syntax: $.tagselect( datasrc, delimiter, $input, ac_enable, jqueryui_css )
datasrc: Your data source as an array.
delimiter: Used to separate your tags.
$input: Target input/textarea element.
ac_enable: Whether enable jQuery UI Autocomplete or not. true/false
jqueryui_css: You can employ your own customized css for jQuery, set the jqueryui_css as your css's URL or location. If there is no value given, the default would be the basic theme of jQuery UI.
Important: So far it only supports delimiter as comma and space, others would lead to malfunction.