[facet js] minor refactoring and cleanups
* extract facetCheckBoxSelect and facetCheckBoxUnselect
* use $ as prefix for jQuery variable (facet -> $facet)
* other minor rephrasing
/* -*- sql -*- mysql specific registered procedures, *//* XXX limit_size version dealing with format as postgres version does. XXX mysql doesn't support overloading, each function should have a different name NOTE: fulltext renamed since it cause a mysql name conflict */CREATEFUNCTIONtext_limit_size(vfulltextTEXT,maxsizeINT)RETURNSTEXTNOSQLBEGINIFLENGTH(vfulltext)<maxsizeTHENRETURNvfulltext;ELSERETURNSUBSTRING(vfulltextfrom1formaxsize)||'...';ENDIF;END;;