<%= render_sort_bar(true, delete_panel_personal_project_back_end_projects_path(:direction => params[:direction], :sort => params[:sort], :sort_options => params[:sort_options]), ['period', 'period', 'span1', 'project.period'], ['project_title', 'project_title','span3', 'project.project_title'], ['participator', 'participator','span3', 'project.participator'], ['job_title', 'job_title','span3', 'project.job_title'], ['unit', 'unit','span3', 'project.unit']).html_safe %>