/// Author   : 含苞
/// DateTime : 2007-6-4
/// File     : Ajax.js
/// Copyright: Hanbao  forever220@126.com


	// IE support
	if (window.ActiveXObject && !window.XMLHttpRequest) 
	{
		window.XMLHttpRequest = function() 
		{
			return new ActiveXObject((navigator.userAgent.toLowerCase().indexOf('msie 5') != -1 || navigator.userAgent.toLowerCase().indexOf('msie 6') != -1) ? 'Microsoft.XMLHTTP' : 'Msxml2.XMLHTTP');
		};
	}
	// Gecko support
	// Opera support
	global_fakeOperaXMLHttpRequestSupport = true; //Modify by xieyb

	if (window.opera && ( !window.XMLHttpRequest || ! (new window.XMLHttpRequest()).setRequestHeader )) 
	{
		global_fakeOperaXMLHttpRequestSupport = true;
		window.XMLHttpRequest = function() 
		{
			this.readyState = 0; // 0=uninitialized,1=loading,2=loaded,3=interactive,4=complete
			this.status = 0; // HTTP status codes
			this.statusText = '';
			this._headers = [];
			this._aborted = false;
			this._async = true;
			this.abort = function() 
			{
				this._aborted = true;
			};
			this.getAllResponseHeaders = function() 
			{
				return this.getAllResponseHeader('*');
			};
			this.getAllResponseHeader = function(header) 
			{
				var ret = '';
				for (var i = 0; i < this._headers.length; i++) 
				{
					if (header == '*' || this._headers[i].h == header) 
					{
						ret += this._headers[i].h + ': ' + this._headers[i].v + '\n';
					}
				}
				return ret;
			};
			this.setRequestHeader = function(header, value) 
			{
				this._headers[this._headers.length] = {h:header, v:value};
			};
			this.open = function(method, url, async, user, password) 
			{
				this.method = method;
				this.url = url;
				this._async = true;
				this._aborted = false;
				if (arguments.length >= 3) 
				{
					this._async = async;
				}
				if (arguments.length > 3) 
				{
					// user/password support requires a custom Authenticator class
					opera.postError('XMLHttpRequest.open() - user/password not supported');
				}
				this._headers = [];
				this.readyState = 1;
				if (this.onreadystatechange) 
				{
					this.onreadystatechange();
				}
			};
			this.send = function(data) 
			{
				alert(data);
				if (!navigator.javaEnabled()) 
				{
					alert("XMLHttpRequest.send() - Java must be installed and enabled.");
					return;
				}
				if (this._async) 
				{
					setTimeout(this._sendasync, 0, this, data);
					// this is not really asynchronous and won't execute until the current
					// execution context ends
				} 
				else 
				{
					this._sendsync(data);
				}
			}
			this._sendasync = function(req, data) 
			{
				if (!req._aborted) 
				{
					req._sendsync(data);
				}
			};
			this._sendsync = function(data) 
			{
				this.readyState = 2;
				if (this.onreadystatechange) 
				{
					this.onreadystatechange();
				}
				// open connection
				var url = new java.net.URL(new java.net.URL(window.location.href), this.url);
				var conn = url.openConnection();
				for (var i = 0; i < this._headers.length; i++) 
				{
					conn.setRequestProperty(this._headers[i].h, this._headers[i].v);
				}
				this._headers = [];
				if (this.method == 'POST') 
				{
					// POST data
					conn.setDoOutput(true);
					var wr = new java.io.OutputStreamWriter(conn.getOutputStream());
					wr.write(data);
					wr.flush();
					wr.close();
				}
				// read response headers
				// NOTE: the getHeaderField() methods always return nulls for me :(
				var gotContentEncoding = false;
				var gotContentLength = false;
				var gotContentType = false;
				var gotDate = false;
				var gotExpiration = false;
				var gotLastModified = false;
				for (var i = 0; ; i++) 
				{
					var hdrName = conn.getHeaderFieldKey(i);
					var hdrValue = conn.getHeaderField(i);
					if (hdrName == null && hdrValue == null) 
					{
						break;
					}
				if (hdrName != null) 
				{
					this._headers[this._headers.length] = {h:hdrName, v:hdrValue};
					switch (hdrName.toLowerCase()) 
					{
						case 'content-encoding': gotContentEncoding = true; break;
						case 'content-length'  : gotContentLength   = true; break;
						case 'content-type'    : gotContentType     = true; break;
						case 'date'            : gotDate            = true; break;
						case 'expires'         : gotExpiration      = true; break;
						case 'last-modified'   : gotLastModified    = true; break;
					}
				}
			}
			// try to fill in any missing header information
			var val;
			val = conn.getContentEncoding();
			if (val != null && !gotContentEncoding) this._headers[this._headers.length] = {h:'Content-encoding', v:val};
				val = conn.getContentLength();
			if (val != -1 && !gotContentLength) this._headers[this._headers.length] = {h:'Content-length', v:val};
				val = conn.getContentType();
			if (val != null && !gotContentType) this._headers[this._headers.length] = {h:'Content-type', v:val};
				val = conn.getDate();
			if (val != 0 && !gotDate) this._headers[this._headers.length] = {h:'Date', v:(new Date(val)).toUTCString()};
				val = conn.getExpiration();
			if (val != 0 && !gotExpiration) this._headers[this._headers.length] = {h:'Expires', v:(new Date(val)).toUTCString()};
				val = conn.getLastModified();
			if (val != 0 && !gotLastModified) this._headers[this._headers.length] = {h:'Last-modified', v:(new Date(val)).toUTCString()};
			// read response data
				var reqdata = '';
				var stream = conn.getInputStream();
				if (stream) 
				{
					var reader = new java.io.BufferedReader(new java.io.InputStreamReader(stream));
					var line;
					while ((line = reader.readLine()) != null) 
					{
						if (this.readyState == 2) 
						{
						this.readyState = 3;
						if (this.onreadystatechange) 
						{
							this.onreadystatechange();
						}
					}
					reqdata += line + '\n';
				}
				reader.close();
				this.status = 200;
				this.statusText = 'OK';
				this.responseText = reqdata;
				this.readyState = 4;
				if (this.onreadystatechange) 
				{
					this.onreadystatechange();
				}
				if (this.onload) 
				{
					this.onload();
				}
			} 
			else 
			{
				// error
				this.status = 404;
				this.statusText = 'Not Found';
				this.responseText = '';
				this.readyState = 4;
				if (this.onreadystatechange) 
				{
					this.onreadystatechange();
				}
				if (this.onerror) 
				{
					this.onerror();
				}
			}
		};
	  };
	}
	if (!window.ActiveXObject && window.XMLHttpRequest) 
	{
		window.ActiveXObject = function(type) 
		{
			switch (type.toLowerCase()) 
			{
				case 'microsoft.xmlhttp':
				case 'msxml2.xmlhttp':
				return new XMLHttpRequest();
			}
			return null;
		};
	}


var Ajax = {};

Ajax.GetJavaScript = function(url,func){
	var ajax1 = new XMLHttpRequest();
	ajax1.open("GET", url, true);
	ajax1.onreadystatechange = function()
	{
		if (ajax1.readyState == 4 && ajax1.status == 200) 
		{
			func(ajax1.responseText);
		}
	}
	ajax1.send(null);
}
Ajax.GetHTML = function(sUrl,func) 
{ 
	var ajax1 = new XMLHttpRequest();
	ajax1.open("GET", sUrl, true);
	ajax1.onreadystatechange = function()
	{
		if (ajax1.readyState == 4 && ajax1.status == 200 && func) 
		{
			func(ajax1.responseText);
		}
	}
	ajax1.send(null);
}
Ajax.PostHTML = function(sUrl,data,func){
	var ajax1 = new XMLHttpRequest();
	ajax1.open("POST", sUrl, true);
	ajax1.setRequestHeader ("Content-type", "application/x-www-form-urlencoded"); 
	ajax1.onreadystatechange =  function()
	{
		if (ajax1.readyState == 4 && ajax1.status == 200 && func) 
		{
			func(ajax1.responseText);
		}
	}
	ajax1.send(data);
}