var scope = 'i_scop';
  Name=navigator.appName;
  Version=parseInt(navigator.appVersion);
  if  ((Name=="Netscape" && Version >= 3) || (Name=="Microsoft Internet Explorer" && Version >= 3))
     Ok="yes"
    else
     Ok="no"

  if (Ok == "yes")
 {  
 	b1_show = new Image();    b1_show.src = "../images/b1main.gif";
	b1_hide = new Image();    b1_hide.src = "../images/b0main.gif";
	b1bot_show = new Image();    b1bot_show.src = "../images/sp.gif";    
	b1bot_hide = new Image();    b1bot_hide.src = "../images/strip1.gif";	
	
 	b2_show = new Image();    b2_show.src = "../images/b1proj.gif";
	b2_hide = new Image();    b2_hide.src = "../images/b0proj.gif";

 	b3_show = new Image();    b3_show.src = "../images/b1catal.gif";
	b3_hide = new Image();    b3_hide.src = "../images/b0catal.gif";

 	b4_show = new Image();    b4_show.src = "../images/b1shop.gif";
	b4_hide = new Image();    b4_hide.src = "../images/b0shop.gif";

 	b5_show = new Image();    b5_show.src = "../images/b1news.gif";
	b5_hide = new Image();    b5_hide.src = "../images/b0news.gif";

 	b6_show = new Image();    b6_show.src = "../images/b1advis.gif";
	b6_hide = new Image();    b6_hide.src = "../images/b0advis.gif";
	
	}



  function bshow (gif) 
{  if (Ok=="yes") 
{    show = eval (gif + "_show.src");    
//     showbot = eval (gif2 + "_show.src");

     document [gif].src = show;
//     document [gif2].src = showbot
     }
  }

  function bhide (gif) 
{  if (Ok=="yes") 
{    hide = eval (gif + "_hide.src");    
//     hidebot = eval (gif2 + "_hide.src");

     document [gif].src = hide;
//     document [gif2].src = hidebot
     }
  }