function showonlyone(thechosenone) {
      var formbox = document.getElementsByTagName("div");
            for(var x=0; x<formbox.length; x++) {
                  name = formbox[x].getAttribute("title");
                  if (name == 'Login' || name == 'Suche') {
                        if (formbox[x].id == thechosenone) {
                        formbox[x].style.display = 'block';
						
						if (thechosenone == 'formbox-login')
						{
							document.getElementById("header-login").parentNode.className = 'titlebar myswitchblock';
							document.getElementById("header-search").parentNode.className = 'titlebar myswitchnone';
						}
						else
						{
							document.getElementById("header-login").parentNode.className = 'titlebar myswitchnone';
							document.getElementById("header-search").parentNode.className = 'titlebar myswitchblock';
						}
						
						
                  }
                  else {
                        formbox[x].style.display = 'none';
						
                  }
            }
      }
}