change in add and edit course function to handle if there is some error in uploading file
change in get student strength function
change in add and edit function for addins and updating a course to handle file upload
change in get student strength function
handled if there is some error in uploading the pdf file for a course
hide the links for forgot password and sign up
added the html to open a pdf file in new window
added one more post variable in post array on change event for course schedule select