question: public static String buildSelectorFromId ( String idValue ) { if ( StringUtils . contains ( idValue , ':' ) ) { return buildSelectorFromAttributeTypeAndValue ( ID_ATTR , idValue ) ; } StringBuilder strb = new StringBuilder ( ) ; strb . append ( ID_SELECTOR_PREFIX ) ; strb . append ( idValue ) ; return strb . toString ( ) ; }
target:  Create a selector of the form #$idValue