f = new Array();
           f1 = new Array();
	       function clik (n)
	       { 	 
	         MinusSrc = "../img/minus.gif";
	         PlusSrc = "../img/plus.gif";
	         name = "plus" + n; 
	         if ( f[n] != 1) 
	          {
	          f[n] = 1;
	          document.images[name].src = MinusSrc;	  	   
	          }
	         else 
	          {
	          f[n] = 0;
	          document.images[name].src = PlusSrc;	   
	          }	
	          main.menu_open(n);	
	        }
	        function clik1 (n)
	       { 	 
	         MinusSrc = "img/minus.gif";
	         PlusSrc = "img/plus.gif";
	         name = "plus" + n; 
	         if ( f1[n] != 1) 
	          {
	          f1[n] = 1;
	          document.images[name].src = MinusSrc;	  	   
	          }
	         else 
	          {
	          f1[n] = 0;
	          document.images[name].src = PlusSrc;	   
	          }	
	          main.menu_open(n);	
	        }