img0a=new Image () ; img0a.src="int/p_off.png" ; img0b=new Image () ; img0b.src="int/p_on.png" ;
img1a=new Image () ; img1a.src="int/l_m1.png" ; img1b=new Image () ; img1b.src="int/l_m1a.png" ;
img2a=new Image () ; img2a.src="int/l_m2.png" ; img2b=new Image () ; img2b.src="int/l_m2a.png" ;
img3a=new Image () ; img3a.src="int/l_m3.png" ; img3b=new Image () ; img3b.src="int/l_m3a.png" ;
img4a=new Image () ; img4a.src="int/l_m4.png" ; img4b=new Image () ; img4b.src="int/l_m4a.png" ;