var xmlhttp;

function getHttpRequest() {
	if (window.XMLHttpRequest) {
  	xmlhttp=new XMLHttpRequest();
  } else if (window.ActiveXObject) {
	  xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
  } else {
  	alert("Your browser does not support XMLHTTP, you cannot use this form until you upgrade your browser!");
  }
  return xmlhttp;
}	

function getServers() {
	var region = document.getElementById('region');
  var selected = null;
  for(var x=0; x<region.childNodes.length; x++) {
    if( (region.childNodes[x].nodeName+"").toLowerCase()=="option" && 
        (region.childNodes[x].selected=="selected" || region.childNodes[x].selected==true) ) {
      selected = region.childNodes[x];
    }
  }
  
  if(!selected || !selected.value || selected.value == '0') {
  	document.getElementById("servers").innerHTML = '';
    return false;
  }

	document.getElementById("servers").innerHTML = '&nbsp;<img src="/static/load.gif" border="0" class="inlineimg" />';

	xmlhttp = getHttpRequest();
	xmlhttp.onreadystatechange = function() {
		if(xmlhttp.readyState == 4) {
  		document.getElementById("servers").innerHTML = xmlhttp.responseText;
  	}
	}
	xmlhttp.open("GET","content/getServers/"+selected.value,true);
	xmlhttp.send(null);
}

function showLoad() {
	document.getElementById("sendrequest").setAttribute('disabled','disabled');
	document.getElementById("showload").innerHTML = '&nbsp;<img src="/static/load.gif" border="0" class="inlineimg" />';
}