function HttpClient()
{
	try
	{
		var objRequest = new XMLHttpRequest();
		//var objRequest = new XDomainRequest();
		if (null != objRequest) this.m_objHttpRequest = objRequest;
	}
	catch (e)
	{
		try
		{
			var objRequest = new ActiveXObject("Msxml2.XMLHTTP");
			if (null != objRequest) this.m_objHttpRequest = objRequest;
		}
		catch (e)
		{
			try
			{
				var objRequest = new ActiveXObject("Microsoft.XMLHTTP");
				if (null != objRequest) this.m_objHttpRequest = objRequest;
			}
			catch (e)
			{
				throw new Error("HttpRequest not supported");
			}
		}
	}
}

HttpClient.prototype.send = function (strURL, objData, bAsync, handleASyncHttpResponse)
{
	if (bAsync)
	{
		this.m_objHttpRequest.onreadystatechange = handleASyncHttpResponse;
	}
	else
	{
		this.m_objHttpRequest.onreadystatechange = null;
	}
	
	this.m_objHttpRequest.open("POST", strURL, bAsync);
	
	this.m_objHttpRequest.setRequestHeader("Content-Type", "application/x-www-form-urlencoded; charset=UTF-8");
	
	this.m_objHttpRequest.send(objData);
	
	if (!bAsync)
	{
		if (4 == this.m_objHttpRequest.readyState)
		{
			if (200 == this.m_objHttpRequest.status)
			{
				return this.m_objHttpRequest.responseText;
			}
			else
			{
				throw new Error(this.m_objHttpRequest.status);
			}
		}
		return this._handleSyncHttpResponse();
	}
}