$(document).ready(function() {

	var filterForm = {
		bindEvents : function() {
			$("#mseurocar_parts_filter").bind('submit', { that : this }, this.filter);
		},

		unbindEvents : function() {
			$("#mseurocar_parts_filter").unbind();
		},
		
		filter: function( event ) {
			var that = event.data.that;
			
			that.unbindEvents();
			
			var year = $('#mseurocar_year option:selected').val();
			var month = $('#mseurocar_month option:selected').val();

			if( year == '' && month != '' ){
				that.displayWarning( $('#mseurocar_choose_year').html() );
				event.preventDefault();
			}

			that.bindEvents();
		},
		
		displayWarning: function( message ){
			$( '#mseurocar_error_message' ).replaceWith('<span id="mseurocar_error_message"><div class="flashmsg flashmsg-warning">' + message + '</div></span>');
		}
	};
	
	filterForm.bindEvents();
});