function changeDisplay(onid, ontab) {
	var onID = document.getElementById(onid);
	var onTab = document.getElementById(ontab);
	for (i = 1; i < 8; i++) {
		key = 't' + i;
		if (document.getElementById(key) != null) {
			document.getElementById(key).style.display = 'none';
		}
		key = 'u' + i;
		if (document.getElementById(key) != null) {
			document.getElementById(key).className = 'mss-tab';
		}

	}

	if (onID) onID.style.display = 'block';
	if (onTab) onTab.className= 'mss-tab-on';

}
function selectCorrectTab() {
  var href = location.href;
  var num = href.split('#',2)[1];
  if (num && parseInt(num)>1) {
    num = parseInt(num);
  } else if (parseInt(href.split('?',2)[1])>1) {
    num = parseInt(href.split('?',2)[1]);
  } else num = 1; 
  changeDisplay('t'+num, 'u'+num);
}
selectCorrectTab();