flg_debug_mode = false;
var local_cache = false;

function xmlhttp() 
{
if (window.ActiveXObject) {
　　try {
　　　return new ActiveXObject("Msxml2.XMLHTTP");
　　} catch (e) {
　　　try {
　　　　return new ActiveXObject("Microsoft.XMLHTTP");
　　　} catch (e2) {
　　　　return null;
　　　}
　　}
　} else if (window.XMLHttpRequest) {
　　return new XMLHttpRequest();
　} else {
　　return null;
　}
}
var debug = 0;
function XmlHttpConnection (_host) {

// Public Properties
	this.xmlhttp = new xmlhttp();
	this.async = true;
	this.result = "";
	this.xml = null;
	this.json_object;
	var formObj = this;
	
	this.img_loading = "<table border=\"0\" cellspacing=\"1\" cellpadding=\"1\" >"
	+ "<tr>"
	+ "<td align=\"center\" valign=\"middle\">"
	// + "<img src=\"/ToDo/AJAX/img/loading2.gif\" >"
	+ "</td>"
	+ "</tr>"
	+ "</table>";
	
// Private Methods
	this._createBoundary = function () {
		var tmp = Math.random();
		var thisDate = new Date();
		tmp = Math.abs(tmp*thisDate.getTime());
		tmp = "--------" + tmp + "--------";
		return tmp;
	}

	this._createField = function (_field, _value) {
		var tmp = "--" + this._boundary + this.CRLF;
		
		if (chk_browser("MSIE") == false)
		    _value = _value.ReplaceAll("\n", chr(13) + chr(10));
		
		tmp += "Content-Disposition: form-data; name=\"" + _field + "\"" + this.CRLF;
		tmp += "Content-Transfer-Encoding: binary" + this.CRLF + this.CRLF;
		tmp += _value + this.CRLF;
		tmp += "--" + this._boundary + this.CRLF;
		return tmp;
	}

	this.xmlhttp.onreadystatechange = function () {
		if (formObj.xmlhttp.readyState == 4) {
			if (formObj.xmlhttp.status == 200) {
				formObj.result = formObj.xmlhttp.responseText;
			}
			else {
				formObj.errCode = formObj.xmlhttp.status;
				formObj.result = formObj.xmlhttp.responseText;
				alert("Error in request!! HTTP RESPONSE STATUS: " + formObj.errCode);
			}
		}
	}
	
// Private Properties
	this._boundary = this._createBoundary();
	this._host = _host;
	this._fields = new Array();
	this.CRLF = "\n";

// Public Methods
	this.addField = function (_field, _value) {
		this._fields.push(new Array(_field, _value));
	}

	this.removeField = function (_field) {
		for (var i=0; i<this._fields.length; i++) {
			var tmp = this._fields[i];
			if (tmp[0] == _field) {
				this._fields.splice(i,1);
			}
		}
	}

	this.emptyField = function () {
		this._fields = new Array();
	}

	this.send = function ()
	{
	    if (local_cache) 
	      {
	       this.xmlhttp.open("GET", this._host, this.async);
	      }
	    else
		   this.xmlhttp.open("POST", this._host, this.async);

		var msgBody = "";
		for (var i=0; i<this._fields.length; i++)
		{
			var tmp = this._fields[i];
			msgBody += this._createField(tmp[0], tmp[1]);
		}
		
		this.xmlhttp.setRequestHeader("Content-Type","multipart/form-data; boundary="+this._boundary);
		this.xmlhttp.setRequestHeader("Connection","Keep-Alive");
		this.xmlhttp.setRequestHeader("Content-Length",msgBody.length);
		this.xmlhttp.send(msgBody);
	}
	
	this.getMsgBody = function ()
	{
		var msgBody = "";
		for (var i=0; i<this._fields.length; i++)
		{
			var tmp = this._fields[i];
			msgBody += this._createField(tmp[0], tmp[1]);
		}
		
		return (msgBody);
	}
	
	this.return_object = function ()
	{
		var func = new Function(this.result);
		return (new func());
	}

	this.connect = function (PageName, field_list)
	{
		this.xmlhttp = new xmlhttp();
		this._fields = new Array();
		
		//alert(PageName + " " + field_list);
		
		this.async = false;
		this._host = PageName;
		var _field = field_list.split(",");
		
		for (var i = 0; i < _field.length; i++)
			this.addField(_field[i], get_element_value(_field[i]) );
			
		if (this._before_connect() == false)
			return (false);
			
		//alert(formObj.getMsgBody());
		
		this.xmlhttp.onreadystatechange = this._check_data;
		
		this.send();
		return (false);
	}
	
	this._check_data = function ()
	{
		if (formObj.xmlhttp.readyState == 4)
		{
			if (formObj.xmlhttp.status == 200)
			{
				formObj.result = formObj.xmlhttp.responseText;
				
				try
				{
					formObj.json_object = formObj.return_object();
				}
				catch (e)
				{
					str_error_msg = "XmlHttpConnection._check_data() 錯誤，無法取得正確的 JSON 物件訊息!!"
					+ "\n 錯誤訊息:" + e.Message
					+ "\n 回傳結果 = \n"  + formObj.result;
					
					display_error(str_error_msg);
					return (false);
				}
				
				try
				{
				    if (formObj.json_object.flg_error == 1)
				    {
					    //alert(formObj.result);
					    //alert(obj.msg);
					    formObj.json_object.on_error();
				    }
				    else
				    {
					    formObj.json_object.on_success();
				    }
				}
				catch (e)
				{
				}
				formObj._after_connect();
			}
			else
			{
				formObj._recieve_error();
			}
		}
		else
		{
			formObj._in_process();
		}
	}
	
	this._in_process = function ()
	{
	}
	
	this._before_connect = function ()
	{
	}
		
	this._after_connect = function ()
	{
	}
	
	this._recieve_error = function ()
	{
		//alert("recieve_error ..!!" + this.xmlhttp.statusText + "\n content = " + );
		var str_error_msg = "";
		formObj.errCode = formObj.xmlhttp.status;
		formObj.result = formObj.xmlhttp.responseText;
		
		str_error_msg = "Error in request!!"
		    + "\nHTTP RESPONSE STATUS: "
		    + formObj.errCode
		    + "\n result = "
		    + "\n" + formObj.result;
		    
		display_error(str_error_msg);

	}
	
	this.in_process_logo = function (display_name, _logo)
	{
		var id_name_msg = display_name;
		
		if (_logo == "")
		{
			$(id_name_msg).innerHTML = "";
			hide_div(id_name_msg);
			$(id_name_msg).style.zIndex = 1;
		}
		else
		{
			set_id_position(id_name_msg
			, document.body.scrollLeft + document.body.clientWidth - 130
			, document.body.scrollTop
			);
			
			$(id_name_msg).style.zIndex = 100;
			
			show_div(id_name_msg);
			$(id_name_msg).innerHTML = _logo;
		}
	}
	
	this.get_result = function (PageName, field_list)
	{
		this.xmlhttp = new xmlhttp();
		this._fields = new Array();
		
		this.async = false;
		this._host = PageName;
		var _field = field_list.split(",");
		
		for (var i = 0; i < _field.length; i++)
			formObj.addField(_field[i], get_element_value(_field[i]) );
		
		if (this._before_connect() == false)
			return (false);
			
		this.send();
		
        alert(this.xmlhttp.readyState + " " + this.xmlhttp.status);
        
        if (this.xmlhttp.readyState == 4)
	    {
	        if (this.xmlhttp.status == 200)
	        {
		        this.result = this.xmlhttp.responseText;
				
		        try
		        {
		            this._after_connect();
    		        return (this.result);
    	        }
		        catch (e)
		        {
			        alert("XmlHttpConnection.get_result() 錯誤！無法開啟網頁"
			        + "\n Error Message:" + e.Message
			        + "\n result = "  + this.result
			        );
			
			        return (false);
		        }
	        }
	        else
   			    this._recieve_error();
	    }
	}

 this.sync_get_object = function (str_url, element_list, options)
	  {
	    var json_data = "{\"AJAX_ASYNC_X\" : \"1\"" 
	    var e = element_list.split(",");
	    for (var i = 0; i< e.length; i++)
	       {
 	             json_data += ",\"" + e[i] + "\": \"" + get_element_value(e[i]) + "\"" ;
	       }
	     json_data += "}";
	    // var obj_data = $j.parseJSON(json_data.ReplaceAll("\r\n", ""));
	    var t, obj_data;
	    if (/msie/.test(navigator.userAgent.toLowerCase()) || /firefox/.test(navigator.userAgent.toLowerCase()))
	      {
	       t = json_data.ReplaceAll('\r\n', '+++@#');
	       obj_data = $j.parseJSON(t);
	      } 
	    else
	      {
	       t = json_data.ReplaceAll('\n', '+++@#');
	       obj_data =  eval('(' + t + ')')
	      } 
        var obj = this;
        var localCache = false;
        if (typeof(options) != "undefined")
           if (options == true) localCache = true;
        $j.ajax({
                    url: str_url,
    //                type : localCache ? "GET" : "POST",
                    type : "POST",
                    dataType: "html",
                    data: obj_data,
                    async: false,
                    //cache: localCache,
                    success: function(data) {
                        obj.result = data;                   
		                try
		                {
    		                obj.json_object = obj.return_object();
    	                }
		                catch (e)
		                {
			                str_error_msg = "XmlHttpConnection.get_object() error: Can't get json object !!"
			                    + "\n Error Message:" + e.Message
			                    + "\n result = "  + obj.result;
        			        
			                display_error(str_error_msg);
			                return (false);
		                }
        				
	                    try
		                {
		                    if (obj.json_object.flg_error == 1)
   				                obj.json_object.on_error();
			                else
				                obj.json_object.on_success();
			            }
    		            catch (e)
	    	            {
		                }
                      },
                error : function (XMLHttpRequest, textStatus, errorThrown) {
                    $j("[id='" + options.imgId + "']").empty();
                    var msg = "";
                    try {
                        msg = "<BR/>" + XMLHttpRequest.responseText;
                    } catch (ex) {}
                    jalert("System Error:" + textStatus + msg );                 }
                
            })	;
        return (this.json_object);    
   }		
	
  this.async_get_object = function (str_url, element_list, options, async_function)
	  {
	    if (options.imgId != "")
	      {
	        img_loading = "<table border=\"0\" cellspacing=\"1\" cellpadding=\"1\" width=\"100%\" >"
        	    + "<tr>"
	            + "<td align=\"center\" valign=\"middle\">"
	            + "<img id=\"data_loading\"src=\"/" + COMPANY_CODE  + "/" + COMPANY_CODE + "/img/loading_indicator_big.gif\">"
	            + "</td>"
	            + "</tr>"
	            + "</table>";

            $j("[id='" + options.imgId + "']").empty().append(img_loading);
          }	            
	    var json_data = "{\"AJAX_ASYNC_X\" : \"1\"" 
	    var e = element_list.split(",");
	    for (var i = 0; i< e.length; i++)
	       {
 	             json_data += ",\"" + e[i] + "\": \"" + get_element_value(e[i]) + "\"" ;
	       }
	     json_data += "}";
    var t, obj_data;
	    if (/msie/.test(navigator.userAgent.toLowerCase()) &&   getInternetExplorerVersion() != -1 && getInternetExplorerVersion() <= 9)
	      {
	       t = json_data.ReplaceAll('\r\n', '');
	       obj_data = $j.parseJSON(t);

	      } 
	    else
	      {
	       t = json_data.ReplaceAll('\n', '');
	       obj_data =  eval('(' + t + ')')
	      } 
   	    // var obj_data =  eval('(' + t + ')')
	    //var obj_data = $j.parseJSON(t); 	    
        var obj = this;
        $j.ajax({
                    url: str_url,
                    type : "POST",
                    dataType: "html",
                    data: obj_data,
                    success: function(data) {
                        if ( options.imgId !="")
                            $j("[id='" + options.imgId + "']").empty();
                       obj.result = data;                   
		                try
		                {
    		                obj.json_object = obj.return_object();
    	                }
		                catch (e)
		                {
			                str_error_msg = "XmlHttpConnection.get_object() error: Can't get json object !!"
			                    + "\n Error Message:" + e.Message
			                    + "\n result = "  + obj.result;
        			        
			                display_error(str_error_msg);
			                return (false);
		                }
        				
	                    try
		                {
		                    if (obj.json_object.flg_error == 1)
   				                obj.json_object.on_error();
			                else
				                obj.json_object.on_success();
			            }
    		            catch (e)
	    	            {
		                }
                    
                        async_function(obj.json_object);     
                },
                error : function (XMLHttpRequest, textStatus, errorThrown) {
                    var msg = "";
                    try {
                        msg = "<BR/>" + XMLHttpRequest.responseText;
                    } catch (ex) {}
                    jalert("System Error:" + textStatus  + msg);                   
                }
                
            })	
   }
   
	this.get_object = function (PageName, field_list, options)
	{
		this.xmlhttp = new xmlhttp();
		this._fields = new Array();
		
		this.async = false;
		this._host = PageName;
		var _field = field_list.split(",");
		if (field_list != "") { 
		for (var i = 0; i < _field.length; i++)
		   {
		     if (PageName.indexOf("ajax_data_search") > 0)
		       formObj.addField(_field[i], get_element_value(_field[i]).ReplaceAll("'", "''") );
		     else
			   formObj.addField(_field[i], get_element_value(_field[i]) );
			} 
		}
		if (this._before_connect() == false)
			return (false);
		if (typeof(options != "undefined"))
		   if (options == true) local_cache = true;
		   
		this.send();
		
        //alert(this.xmlhttp.readyState + " " + this.xmlhttp.status);
        
        if (this.xmlhttp.readyState == 4)
	    {
	        if (this.xmlhttp.status == 200)
	        {
		        this.result = this.xmlhttp.responseText;
				
		        try
		        {
    		        this.json_object = this.return_object();
    	        }
		        catch (e)
		        {
			        str_error_msg = "XmlHttpConnection.get_object() error: Can't get json object !!"
			            + "\n Error Message:" + e.Message
			            + "\n result = "  + this.result;
			        
			        display_error(str_error_msg);
			        return (false);
		        }
				
	            try
		        {
		            if (this.json_object.flg_error == 1)
   				        this.json_object.on_error();
			        else
				        this.json_object.on_success();
			    }
    		    catch (e)
	    	    {
		        }
	        }
	        else
   			    this._recieve_error();
				    
	        this._after_connect();
	        //alert("XmlHttpConnection.get_object() receive data ..!!");
	        return (this.json_object);
	    }
		    
    	return (null);
	}
	
	this.get_xml = function (PageName, field_list)
	{
		this.xmlhttp = new xmlhttp();
		this._fields = new Array();
		this.xmlDom = createXMLDom();
		
		this.async = false;
		this._host = PageName;
		var _field = field_list.split(",");
		
		for (var i = 0; i < _field.length; i++)
			formObj.addField(_field[i], get_element_value(_field[i]) );
		
		if (this._before_connect() == false)
			return (false);
			
		this.send();
		
        //alert(this.xmlhttp.readyState + " " + this.xmlhttp.status);
        
        if (this.xmlhttp.readyState == 4)
	    {
	        if (this.xmlhttp.status == 200)
	        {
	            this.result = this.xmlhttp.responseText;
	            this.xmlDom = this.xmlhttp.responseXML
                return (this.xmlDom);
            }
	        else
   			    this._recieve_error();
				    
	        this._after_connect();
	        //alert("XmlHttpConnection.get_object() receive data ..!!");

            return (null);
	    }
		    
    	return (null);
	}
}

function display_error(str)
{
    if (flg_debug_mode == true)
    {
        var reply = prompt("AJAX執行時期發現錯誤！是否要將錯誤訊息顯示到畫面上，請輸入欲顯示的物件名稱！", "txt.debug.source");
            
        if (reply != null)
        {
            try { show("display.debug.source"); } catch (e) {}
            try { set_element_value(reply, str); return (false); } catch (e) {}
            try { $(reply).innerHTML = str; return (false); } catch (e) {}
        }
		else
		    window.status = str;
    }
}

function getInternetExplorerVersion()
// Returns the version of Internet Explorer or a -1
// (indicating the use of another browser).
{
  var rv = -1; // Return value assumes failure.
  if (navigator.appName == 'Microsoft Internet Explorer')
  {
    var ua = navigator.userAgent;
    var re  = new RegExp("MSIE ([0-9]{1,}[\.0-9]{0,})");
    if (re.exec(ua) != null)
      rv = parseFloat( RegExp.$1 );
  }
  return rv;
}