function bookmark(){

if (window.sidebar) // firefox

	window.sidebar.addPanel("justcalculators.com - " + document.title, window.location , "");

else if(window.opera && window.print){ // opera

	var elem = document.createElement('a');

	elem.setAttribute('href',window.location);

	elem.setAttribute('title',document.title);

	elem.setAttribute('rel','sidebar');

	elem.click();

} 

else if(document.all)// ie

	window.external.AddFavorite(window.location, 'www.justcalculators.com - ' + document.title);

}