SQL Server :: Incorrect Syntax Near The Keyword "ON"

i have 3 tables to inner join to get the values. employee_id, employee_name from employee table emplyee_assessment, manager_assessment from Appraisal table. status from objective table

set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
go
ALTER PROCEDURE [dbo].[sp_selectemployeeapprisaldetails]
@employee_name Varchar(30) =null,
@years Varchar(30) =null,
@designation Varchar(30) =null,
@status Varchar(30) =null
AS
BEGIN

--Set NULL when variable is NULL or length is zero
if @employee_name is not null and len(@employee_name)=0 set @employee_name = null
if @years is not null and len(@years)=0 set @years = null
if @designation is not null and len(@designation)=0 set @designation = null
If @status = 'Select' Set @status = null
select employee.employee_id, employee.employee_name, Appraisal.years, Appraisal.emplyee_assessment, Appraisal.manager_assessment, objective.status
from employee INNER JOIN ON (objective INNER JOIN ON Appraisal ON objective.objective_id = Appraisal.objective_id) ON employee.employeeid = Apprasial.employee_id
WHERE employee.emplyee_id = Appraisal.employee_id and Appraisal.objective_id = objective.objective_id and objective.status = 'Active'
END

but i am getting errors like 1) Incorrect syntax near the keyword 'ON'.