function form_apri_js_popup(form) {
	if (window.debug_attivo) { alert('in "form_apri_js_popup"'); }

	var target= 'window_form_apri_js_popup' + Math.ceil(1000000000 * Math.random())

	/*if (typeof(my_apri_finestra) != 'undefined') my_apri_finestra('', target);
	else*/
	window.open('', target, 'scrollbars=no,width=10,height=10,left=0,top=0,topmargin=0,bottommargin=0,leftmargin=0,rightmargin=0,marginwidth=0,marginheight=0');

	window.focus();
	form.target=target;
}