function principar(objeto){

 
 
 if (navigator.appName=='Microsoft Internet Explorer'){
 objeto.style.behavior='url(#default#homepage)'
 objeto.setHomePage("http://www.logistour.com")
 }
 if (navigator.appName=='Netscape'){
 window.sidebar.addPanel("Logistour", "http://www.logistour.com", "");
 }
}