diff --git a/TikzPainter.py b/TikzPainter.py
index 686c263..a939ef4 100644
--- a/TikzPainter.py
+++ b/TikzPainter.py
@@ -7,14 +7,19 @@ REG_STATUS_TO_COLOR = {
 	"jump":   "orange"
 }
 
+DEFAULT_OPTIONS = """register_node/.style={rectangle, draw=black!30,
+					fill=black!5, very thick, minimum size=0.5,
+					minimum width=20mm}, text_node/.style={}"""
+
 class TikzPainter:
 
-	def __init__ (self, registers=None, max_stack_size=8, stack_draw_mode="up"):
+	def __init__ (self, registers=None, max_stack_size=8, stack_draw_mode="up", options=None):
 		self.registers = registers if registers else REGISTERS
 		self.text = []
 		self.pos_x = 0
 		self.max_stack_size = max_stack_size
 		self.stack_draw_mode = stack_draw_mode
+		self.options = options if options else DEFAULT_OPTIONS
 
 	def addText (self, str, *args):
 		self.text.append(str.format(*args))
@@ -106,4 +111,10 @@ class TikzPainter:
 						x, pos, index)
 
 	def __str__ (self):
-		return "".join(self.text)
+		PRE = """ \\documentclass{standalone}
+				  \\usepackage{tikz}
+				  \\begin{document}
+				  \\begin{tikzpicture}["""+self.options+"]"
+		POST = """\\end{tikzpicture}
+				  \\end{document}"""
+		return PRE + "".join(self.text) + POST
diff --git a/tests/test_fib.py b/tests/test_fib.py
index a141f23..2c9995e 100644
--- a/tests/test_fib.py
+++ b/tests/test_fib.py
@@ -47,11 +47,6 @@ return:	leave           # Clean up
         ret             # return m (rax)
 """
 
-
-OPTIONS = """register_node/.style={rectangle, draw=black!30,
-			 fill=black!5, very thick, minimum size=0.5,
-			 minimum width=20mm}, text_node/.style={}"""
-
 def printf (str, *args):
 	print(str.format(*args))
 
@@ -74,7 +69,4 @@ if __name__ == "__main__":
 	printf("fib({}) = {}", a, emu.registers["%rax"])
 
 	with open("tikz.tex","w") as f:
-		f.write("\\documentclass{standalone}\n\n\usepackage{tikz}\\begin{document}\n")
-		f.write("\\begin{tikzpicture}["+OPTIONS+"]\n")
 		f.write(str(painter))
-		f.write("\\end{tikzpicture}\n\\end{document}")