function trim(stringToTrim) {
	if(stringToTrim == null){
		return "";
	}else{
		return stringToTrim.replace(/^\s+|\s+$/g,"");
	}
}
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 sendRequest(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);
}
function updatePage(request) {
  if (request.readyState == 4) {
    if (request.status == 200) {
      	var info_array = trim(request.responseText);
      	values = info_array.split("||");
	  	section = values[0];
		var thumb_code = trim(values[2]);
		switch(section){
			case "fireplaces":
				document.getElementById("display-product").innerHTML = values[1];
				break;
			case "accessories":
				document.getElementById("display-product").innerHTML = values[1];
				break;
			case "gel":
				document.getElementById("display-product").innerHTML = values[1];
				break;
		}
    }
    else 
      alert("Error! Request status is " + request.status);
	}
}