b1on=new Image()
b1on.src="images/anasayfa2.gif"
b2on=new Image()
b2on.src="images/cad2.gif"
b3on=new Image()
b3on.src="images/referanslar2.gif"
b4on=new Image()
b4on.src="images/iletisim2.gif"
b5on=new Image()
b5on.src="images/film2.gif"
b1off=new Image()
b1off.src="images/anasayfa1.gif"
b2off=new Image()
b2off.src="images/cad1.gif"
b3off=new Image()
b3off.src="images/referanslar1.gif"
b4off=new Image()
b4off.src="images/iletisim1.gif"
b5off=new Image()
b5off.src="images/film1.gif"