4.  The applicant was born in 1950 and lives in Žalec. 5.  On 21 May 1997 the applicant, employed as a teacher in a music school, instituted proceedings before the Celje Labour Court seeking the annulment of a decision on the classification in a pay grade. 6.  On 1 February 2000 the first hearing was held. 7.  After two more hearings, on 24 March 2000 the first-instance court delivered a judgment rejecting the applicant’s request. He appealed. 8.  On 7 December 2001 the Higher Labour and Social Court upheld his appeal and remitted the case for re-examination. 9.  On 11 June 2002 the first-instance court delivered a judgment rejecting his request. He appealed. 10.  On 26 February 2004 the second instance court rejected his appeal. He lodged an appeal on points of law. 11.  On 11 January 2005 the Supreme Court rejected the appeal. He lodged a constitutional complaint. 12.  On 17 March 2006 the Constitutional Court rejected the complaint as unsubstantiated. The decision was served on the applicant on 21 March 2006. 13.  On 7 September 2001 the applicant instituted proceedings before the Celje Labour Court seeking the annulment of a decision on the classification in a pay grade and requesting for the two proceedings to be joined. 14.  On 10 December 2002 the first hearing was held. The first-instance court rejected the request for joining the proceedings and delivered a judgment rejecting the applicant’s claim. He appealed. 15.  On 15 April 2004 the Higher Labour and Social Court rejected his appeal. The judgment was served on the applicant on 28 May 2004.