set title "Some Title"
set context [list $title]
set template [parameter::get -package_id [ad_conn subsite_id] -parameter StreamingHead] 
ad_return_top_of_page [ad_parse_template -params [list context title] $template]

foreach i {1 2 3} {
    ns_write "$i...<äüö> <ÄÜÖ>\n"
    ns_sleep 2
}
ns_write "<br>DONE\n"