diff --git a/schedulecreator.php b/schedulecreator.php
--- a/schedulecreator.php
+++ b/schedulecreator.php
@@ -14,39 +14,39 @@ include_once 'class.section.php';
          $allClasses = new Schedule("Fall 2010");
   	
          $allClasses->addClass("CS 104");
-         $allClasses->addSection("CS 104", "A", 1030, 1120, 24);
+         $allClasses->addSection("CS 104", "A", 1030, 1120, 'th');
       	
          $allClasses->addClass("Engr 209");
-         $allClasses->addSection("Engr 209", "A", 1330, 1420, 1235);
-         $allClasses->addSection("Engr 209", "B", 1430, 1520, 1235);
+         $allClasses->addSection("Engr 209", "A", 1330, 1420, 'mtwf');
+         $allClasses->addSection("Engr 209", "B", 1430, 1520, 'mtwf');
       	
          $allClasses->addClass("Engr 209L");
-         $allClasses->addSection("Engr 209L", "A", 1830, 2120, 4);
-         $allClasses->addSection("Engr 209L", "B", 1830, 2120, 3);
+         $allClasses->addSection("Engr 209L", "A", 1830, 2120, 'h');
+         $allClasses->addSection("Engr 209L", "B", 1830, 2120, 'w');
       	
          $allClasses->addClass("Math 231");
-         $allClasses->addSection("Math 231", "A", 800, 850, 1235);
+         $allClasses->addSection("Math 231", "A", 800, 850, 'mtwf');
       	
          $allClasses->addClass("Phys 235");
-         $allClasses->addSection("Phys 235", "A", 900, 950, 135);
-         $allClasses->addSection("Phys 235", "B", 1130, 1220, 135);
-         $allClasses->addSection("Phys 235", "C", 1230, 1320, 135);
+         $allClasses->addSection("Phys 235", "A", 900, 950, 'mwf');
+         $allClasses->addSection("Phys 235", "B", 1130, 1220, 'mwf');
+         $allClasses->addSection("Phys 235", "C", 1230, 1320, 'mwf');
       	
          $allClasses->addClass("Phys 235L");
-         $allClasses->addSection("Phys 235L", "A", 1430, 1720, 1);
-         $allClasses->addSection("Phys 235L", "B", 1430, 1720, 3);
-         $allClasses->addSection("Phys 235L", "C", 830, 1120, 4);
-         $allClasses->addSection("Phys 235L", "D", 1230, 1520, 4);
+         $allClasses->addSection("Phys 235L", "A", 1430, 1720, 'm');
+         $allClasses->addSection("Phys 235L", "B", 1430, 1720, 'w');
+         $allClasses->addSection("Phys 235L", "C", 830, 1120, 'h');
+         $allClasses->addSection("Phys 235L", "D", 1230, 1520, 'h');
       	
          $allClasses->addClass("Rel 131");
-         $allClasses->addSection("Rel 131", "A", 800, 850, 135);
-         $allClasses->addSection("Rel 131", "B", 900, 950, 135);
-         $allClasses->addSection("Rel 131", "C", 1330, 1420, 135);
-         $allClasses->addSection("Rel 131", "D", 1430, 1520, 135);
-         $allClasses->addSection("Rel 131", "E", 835, 950, 24);
-         $allClasses->addSection("Rel 131", "F", 1030, 1145, 24);
-         $allClasses->addSection("Rel 131", "G", 1205, 1320, 24);
-         $allClasses->addSection("Rel 131", "H", 1330, 1445, 24);
+         $allClasses->addSection("Rel 131", "A", 800, 850, 'mwf');
+         $allClasses->addSection("Rel 131", "B", 900, 950, 'mwf');
+         $allClasses->addSection("Rel 131", "C", 1330, 1420, 'mwf');
+         $allClasses->addSection("Rel 131", "D", 1430, 1520, 'mwf');
+         $allClasses->addSection("Rel 131", "E", 835, 950, 'th');
+         $allClasses->addSection("Rel 131", "F", 1030, 1145, 'th');
+         $allClasses->addSection("Rel 131", "G", 1205, 1320, 'th');
+         $allClasses->addSection("Rel 131", "H", 1330, 1445, 'th');
       	       
          $allClasses->findPossibilities();
          $allClasses->writeoutTables();