diff --git a/Lib/irix5/FL.py b/Lib/irix5/FL.py
index 43c9904..100d05f 100755
--- a/Lib/irix5/FL.py
+++ b/Lib/irix5/FL.py
@@ -1,8 +1,14 @@
 # Constants used by the FORMS library (module fl).
 # This corresponds to "forms.h".
 # Recommended use: import FL; ... FL.NORMAL_BOX ... etc.
+# Alternate use: from FL import *; ... NORMAL_BOX ... etc.
 
-_v15 = 0
+import fl
+try:
+	_v20 = (fl.get_rgbmode <> None)
+except:
+	_v20 = 0
+del fl
 
 NULL = 0
 FALSE = 0
@@ -11,7 +17,8 @@
 EVENT = -1
 
 LABEL_SIZE = 64
-SHORTCUT_SIZE = 32		# V2.0
+if _v20:
+	SHORTCUT_SIZE = 32
 PLACE_FREE = 0
 PLACE_SIZE = 1
 PLACE_ASPECT = 2
@@ -108,7 +115,8 @@
 TOUCH_BUTTON = 4
 INOUT_BUTTON = 5
 RETURN_BUTTON = 6
-HIDDEN_RET_BUTTON = 7		# V2.0
+if _v20:
+	HIDDEN_RET_BUTTON = 7
 BUTTON_BOXTYPE = UP_BOX
 BUTTON_COL1 = COL1
 BUTTON_COL2 = COL1
@@ -117,20 +125,21 @@
 BUTTON_MCOL1 = MCOL
 BUTTON_MCOL2 = MCOL
 BUTTON_BW = BOUND_WIDTH
-CHART = 4			# V2.0
-BAR_CHART = 0			# V2.0
-HORBAR_CHART = 1		# V2.0
-LINE_CHART = 2			# V2.0
-FILLED_CHART = 3		# V2.0
-SPIKE_CHART = 4			# V2.0
-PIE_CHART = 5			# V2.0
-SPECIALPIE_CHART = 6		# V2.0
-CHART_BOXTYPE = BORDER_BOX	# V2.0
-CHART_COL1 = COL1		# V2.0
-CHART_LCOL = LCOL		# V2.0
-CHART_ALIGN = ALIGN_BOTTOM	# V2.0
-CHART_BW = BOUND_WIDTH		# V2.0
-CHART_MAX = 128			# V2.0
+if _v20:
+	CHART = 4
+	BAR_CHART = 0
+	HORBAR_CHART = 1
+	LINE_CHART = 2
+	FILLED_CHART = 3
+	SPIKE_CHART = 4
+	PIE_CHART = 5
+	SPECIALPIE_CHART = 6
+	CHART_BOXTYPE = BORDER_BOX
+	CHART_COL1 = COL1
+	CHART_LCOL = LCOL
+	CHART_ALIGN = ALIGN_BOTTOM
+	CHART_BW = BOUND_WIDTH
+	CHART_MAX = 128
 CHOICE = 42
 NORMAL_CHOICE = 0
 CHOICE_BOXTYPE = DOWN_BOX
@@ -160,11 +169,12 @@
 COUNTER_COL2 = 4
 COUNTER_LCOL = LCOL
 COUNTER_ALIGN = ALIGN_BOTTOM
-COUNTER_BW = BOUND_WIDTH	# V2.0
-if _v15:
-	DEFAULT = 51		# V1.5
-	RETURN_DEFAULT = 0	# V1.5
-	ALWAYS_DEFAULT = 1	# V1.5
+if _v20:
+	COUNTER_BW = BOUND_WIDTH
+else:
+	DEFAULT = 51
+	RETURN_DEFAULT = 0
+	ALWAYS_DEFAULT = 1
 DIAL = 22
 NORMAL_DIAL = 0
 LINE_DIAL = 1
@@ -183,12 +193,12 @@
 ALL_FREE = 5
 INPUT = 31
 NORMAL_INPUT = 0
-if _v15:
-	ALWAYS_INPUT = 1	# V1.5	-- Warning: collides with next
+if _v20:
+	FLOAT_INPUT = 1
+	INT_INPUT = 2
+	HIDDEN_INPUT = 3
 else:
-	FLOAT_INPUT = 1		# V2.0
-INT_INPUT = 2			# V2.0
-HIDDEN_INPUT = 3		# V2.0
+	ALWAYS_INPUT = 1
 INPUT_BOXTYPE = DOWN_BOX
 INPUT_COL1 = 13
 INPUT_COL2 = 5