var aoModels = {

	    handleSuccess:function(o)
	    {
	        this.processResult(o);
	    },

	    handleFailure:function(o)
	    {
	        emptySelect( document.getElementById( 'models' ) );
	    },

	    processResult:function(o)
	    {
	        response = o.responseText.parseJSON();
	        createSelect( document.getElementById( 'models' ), response[0], response[1] );
	    },

	    startRequest:function( id, selected )
	    {
	    	emptySelect( document.getElementById( 'modifications' ) );
	    	emptySelect( document.getElementById( 'engine_code_filter' ) );
	    	emptySelect( document.getElementById( 'engine_volume_filter' ) );
	    	emptySelect( document.getElementById( 'engine_power_filter' ) );
	    	emptySelect( document.getElementById( 'engine_id_filter' ) );
	    	emptySelect( document.getElementById( 'traction_id_filter' ) );
	    	emptySelect( document.getElementById( 'coupe_id_filter' ) );

	    	loading = new Array( 'Loading...' );
	    	createSelect( document.getElementById( 'models' ), loading, '' );

	    	YAHOO.util.Connect.asyncRequest('POST', '/ajax/ajax.php', aoModelsCallback, "action=getModels&id=" + id + '&selected=' + selected );
	    }

	};

	var aoModelsCallback =
	{
	    success: aoModels.handleSuccess,
	    failure: aoModels.handleFailure,
	    scope: aoModels
	};