var urlAddress = "http://www.pet-net.net/"; 
var pageName = "Pets and Animals - Pet Net"; 

function addToFavorites() 
{ 
if (window.external) 
{ 
window.external.AddFavorite(urlAddress,pageName) 
} 
else 
{ 
alert("Sorry! Your browser doesn't support this function.\nChecck the menu to add manually"); 
} 
}