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.gif";
	    img_n[1].src="img/button1.gif";
	    
	    
	    img_a[2]=new Image ();
	    img_n[2]=new Image ();
	    img_a[2].src="img/button2_a.gif";
	    img_n[2].src="img/button2.gif";
	    
	    
	    
	    img_a[3]=new Image ();
	    img_n[3]=new Image ();
	    img_a[3].src="img/button3_a.gif";
	    img_n[3].src="img/button3.gif";
	    
	    
	    
	    img_a[4]=new Image ();
	    img_n[4]=new Image ();
	    img_a[4].src="img/button4_a.gif";
	    img_n[4].src="img/button4.gif";
	
	
var menus = 4;
var ln = new Image();
var tr = new Image();
ln.src="img/mn_left_act.gif";
tr.src="img/trans.gif";