if( parseInt(navigator.appVersion) >= 3 ) compat = true;
if( compat )
  {
up = new Image;   with(up)  {src="img/menu.gif"; width=7; height=7;}
down = new Image; with(down){src="img/menu_over.gif"; width=7; height=7;}
  }
function SetImg(Name,Img)
  {
  if(compat)
    {
      document.images[Name].src=eval(Img + '.src');
	  
    }

  }