i have a plugin to customize index-page ! and in the code i have  this : 

if (elgg_is_logged_in())
{
forward ('activity');

}

but how to redirect user to default home-page ( that contain many widgets )   not activity page , i try to use this ( forward (''); )  but i have this messgae ' This webpage has a redirect loop ' , so what can replace forward (' activity') to send users into home-page (www.mysite.com/) .