http://www.yiiframework.com/forum/index.php?/topic/13149-form-that-update-fields-on-blur-events/
Ive made a core fix that you can set Jevent in $htmloptions if Jevent is not set will be default set, so if you won`t change jquery event copy paste attached file with framework/web/helpers/CHtml.php
Jevent is global visible