~Jhash(); // destruction
bool Set_blob( const char* name ); // blob/root selection
void Unset_blob( );
bool Set_blob_ele( const char* name, int eidx ); // set from an array element
~Jhash(); // destruction
bool Set_blob( const char* name ); // blob/root selection
void Unset_blob( );
bool Set_blob_ele( const char* name, int eidx ); // set from an array element