var SPAA={
	MDDNatureChange:function(){
		var selector = $("#natureOfChange");
		var selection = selector.val();

		var participantContainer = $("#mdd-market-participant");		
		var meterContainer = $("#mdd-meter-change");
		var attachmentContainer = $("#mdd-attachment");
		var submitButtonContainer = $("#submit-button");

		if(selection == "none"){
			meterContainer.css("display", "none");
			participantContainer.css("display", "none");
			attachmentContainer.css("display", "none");
			submitButtonContainer.css("display", "none");
		} else {
			attachmentContainer.css("display", "block");
			submitButtonContainer.css("display", "block");
		}

		if((selection == "add") || (selection == "delete") || (selection == "amend")){
			meterContainer.css("display", "block");
			participantContainer.css("display", "none");
			attachmentContainer.css("display", "block");
		}
		
		if((selection == "addparticipant") || (selection == "deleteparticipant") || (selection == "amendparticipant")){
			meterContainer.css("display", "none");
			participantContainer.css("display", "block");
			attachmentContainer.css("display", "block");
		}
	}
}