String.prototype.trim = function () {
	return this.replace(/^\s*|\s*$/,"");
}
function createRequest() {
  var request = null;
  try {
    request = new XMLHttpRequest();
  } 
  catch (trymicrosoft) {
    try {
      request = new ActiveXObject("Msxml2.XMLHTTP");
    } 
    catch (othermicrosoft) {
      try {
        request = new ActiveXObject("Microsoft.XMLHTTP");
      } 
      catch (failed) {
        request = null;
      }
    }
  }

  if (request == null)
    alert("Error creating request object!");
  else
    return request;
}


function sendFontRequest(url, param) {
  var request = createRequest();
  request.onreadystatechange = function() {
      updatePage(request);
  }

  // Get Request
  /*request.open("GET", url + "?" + param + "&dummy=" + new Date.getTime(), true);
  request.send(null);*/
  
  //Post request
  request.open("POST", url, true);
  request.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
  request.send(param);
  if(param.length){
  	//nothing
  }
}


function updatePage(request) {
  if (request.readyState == 4) {
    if (request.status == 200) {
      	var response = request.responseText;
	  	myobj = response.split("|");
		myobj = myobj[1];
		if(myobj == "big"){
     		//alert('Changed font size to big.');
		}else{
		  	//alert('Changed font size back to default.');
		}
      //var xmlDoc = request.responseXML;
    }
    else 
      alert("Error! Request status is " + request.status);
  } 
}