img_a=new Array ();
	    img_n=new Array ();
    	
    	
	    img_a[1]=new Image ();
	    img_n[1]=new Image ();
	    img_a[1].src="img/button1_a.jpg";
	    img_n[1].src="img/button1.jpg";
	    
	    
	    img_a[2]=new Image ();
	    img_n[2]=new Image ();
	    img_a[2].src="img/button2_a.jpg";
	    img_n[2].src="img/button2.jpg";
	    
	    
	    
	    img_a[3]=new Image ();
	    img_n[3]=new Image ();
	    img_a[3].src="img/button3_a.jpg";
	    img_n[3].src="img/button3.jpg";
	    
	    
	    
	    img_a[4]=new Image ();
	    img_n[4]=new Image ();
	    img_a[4].src="img/button4_a.jpg";
	    img_n[4].src="img/button4.jpg";
	    
	    
	    
	    img_a[5]=new Image ();
	    img_n[5]=new Image ();
	    img_a[5].src="img/button5_a.jpg";
	    img_n[5].src="img/button5.jpg";
	    
	    
	    
	    img_a[6]=new Image ();
	    img_n[6]=new Image ();
	    img_a[6].src="img/button6_a.jpg";
	    img_n[6].src="img/button6.jpg";
	    
	    
	    
	    img_a[7]=new Image ();
	    img_n[7]=new Image ();
	    img_a[7].src="img/button7_a.jpg";
	    img_n[7].src="img/button7.jpg";
	    
	    


	    function On (number)
	    {
	        document.images["button"+number].src=img_a[number].src;
	    }
	    function Off (number)
	    {
	        document.images["button"+number].src=img_n[number].src;
	    }