function bookmark()
{
	var i = navigator.userAgent.indexOf("Netscape");
	if(i >= 0)
	{
		alert("Press Ctrl + D to Bookmark this Page");
	}
	else if (window.sidebar) // firefox
	{
		alert("Press Ctrl + D to bookmark");
	}
	else if(window.opera && window.print)
	{ // opera
		var elem = document.createElement('a');
		elem.setAttribute('href',"http://www.modatoday.com/");
		elem.setAttribute('title',document.title);
		elem.setAttribute('rel','sidebar');
		elem.click();
	} 
	else if(document.all)// ie
	{
		window.external.AddFavorite(window.location, document.title);
	}
	else
	{
		alert("Press Ctrl + D to Bookmark this page");
	}
}