function participateToCompetition(competitionId) {
	var url = drupalUrl+'user/competition_add/'+competitionId;
	
	$.get(url, function(data) {
		$(".rockEventsCompetitionParticipate"+competitionId).hide();
		$(".rockEventsCompetitionCancel"+competitionId).show();
	});
}

function removeParticipation(competitionId) {
	var url = drupalUrl+'user/competition_remove/'+competitionId;
	
	$.get(url, function(data) {
		$(".rockEventsCompetitionCancel"+competitionId).hide();
		$(".rockEventsCompetitionParticipate"+competitionId).show();
	});
}