function memberSort(sort)
	{
	var xmlhttp;
	if (window.XMLHttpRequest)
	  {// code for IE7+, Firefox, Chrome, Opera, Safari
	  xmlhttp=new XMLHttpRequest();
	  }
	else
	  {// code for IE6, IE5
	  xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
	  }
	xmlhttp.onreadystatechange=function()
	  {
	  if (xmlhttp.readyState==4 && xmlhttp.status==200)
	    {
	    document.getElementById("table").innerHTML=xmlhttp.responseText;
	    }
	  }
	xmlhttp.open("GET","memberstable.php?sort=" + sort,true);
	xmlhttp.send();
	}