function info(topic)
{
    if(helpTabIndex==null)
	{
	    $tabs.tabs('add',"php/content.php?page=info&topic="+topic, 'Info');	    
	    helpTabIndex=$tabs.tabs('length')-1;
	    $tabs.tabs('select', helpTabIndex); 
	}
    else
	{
	    $tabs.tabs('url',helpTabIndex,"php/content.php?page=info&topic="+topic);	    
	    $tabs.tabs('select', helpTabIndex); 
	}

}