function OpenSprechenPopup(id_content, session)
{
	var height = screen.height - 150;
	var width  = screen.width - 40;
	
	var sprechen_popup = window.open('sprechen_popup.php?id_content=' + id_content + '&' + session, 'hoerer_popup', 'top=10,left=10,width='+ width +',height=' + height + ',scrollbars=1,menubar=1,resizable=1');
	
	if(sprechen_popup)
		if(sprechen_popup.focus)
			sprechen_popup.focus();
}