Detect CSJS library setting

/*** Detect CSJS library used by the current application ***/
var reqParam = new com.ibm.xsp.context.RequestParameters ( facesContext );
var jsLib = reqParam.getJsLibrary();

switch(jsLib){
   case 1:
      return "dojo";
   break;
   case 2:
      return "dojo lite";
   break;
   default:
      return "none";
   break;
}