/*
--------------------------------------------------------------------
Ajax Agent for PHP v.0.3. Copyright (c) 2006 ajaxagent.org. 
@author: Steve Hemmady, Anuta Udyawar <contact at ajaxagent dot org>
This program is free software; you can redistribute it under the 
terms of the GNU General Public License as published by the Free 
Software Foundation; either version 2 of the License, or (at your 
option) any later version. This program is distributed in the hope 
that it will be useful, but WITHOUT ANY WARRANTY; without even the 
implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
PURPOSE. See the GNU General Public License for more info 
at http://www.gnu.org/licenses/gpl.txt
--------------------------------------------------------------------
*/


/*
  Copyright (c) 2005 JSON.org
  
  Permission is hereby granted, free of charge, to any person obtaining a copy
  of this software and associated documentation files (the "Software"), to deal
  in the Software without restriction, including without limitation the rights
  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  copies of the Software, and to permit persons to whom the Software is
  furnished to do so, subject to the following conditions:
  
  The Software shall be used for Good, not Evil.
  
  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  SOFTWARE.
*/

/*
  The global object JSON contains two methods.
  
  JSON.stringify(value) takes a JavaScript value and produces a JSON text.
  The value must not be cyclical.
  
  JSON.parse(text) takes a JSON text and produces a JavaScript value. It will
  throw a 'JSONError' exception if there is an error.
*/
var JSON = {
  copyright: '(c)2005 JSON.org',
  license: 'http://www.crockford.com/JSON/license.html',
  /*
    Stringify a JavaScript value, producing a JSON text.
  */
  stringify: function (v) {
    var a = [];
    
    /*
      Emit a string.
    */
    function e(s) {
      a[a.length] = s;
    }
      
      /*
	Convert a value.
      */
      function g(x) {
	var c, i, l, v;
	
	switch (typeof x) {
	case 'object':
	  if (x) {
	    if (x instanceof Array) {
	      e('[');
	      l = a.length;
	      for (i = 0; i < x.length; i += 1) {
		v = x[i];
		if (typeof v != 'undefined' &&
		    typeof v != 'function') {
		  if (l < a.length) {
		    e(',');
		  }
		  g(v);
		}
	      }
	      e(']');
	      return;
	    } else if (typeof x.toString != 'undefined') {
	      e('{');
	      l = a.length;
	      for (i in x) {
		v = x[i];
		if (x.hasOwnProperty(i) &&
		    typeof v != 'undefined' &&
		    typeof v != 'function') {
		  if (l < a.length) {
		    e(',');
		  }
		  g(i);
		  e(':');
		  g(v);
		}
	      }
	      return e('}');
	    }
	  }
	  e('null');
	  return;
	case 'number':
	  e(isFinite(x) ? +x : 'null');
	  return;
	case 'string':
	  l = x.length;
	  e('"');
	  for (i = 0; i < l; i += 1) {
	    c = x.charAt(i);
	    if (c >= ' ') {
	      if (c == '\\' || c == '"') {
		e('\\');
	      }
	      e(c);
	    } else {
	      switch (c) {
	      case '\b':
		e('\\b');
		break;
	      case '\f':
		e('\\f');
		break;
	      case '\n':
		e('\\n');
		break;
	      case '\r':
		e('\\r');
		break;
	      case '\t':
		e('\\t');
		break;
	      default:
		c = c.charCodeAt();
		e('\\u00' + Math.floor(c / 16).toString(16) +
		  (c % 16).toString(16));
	      }
	    }
	  }
	  e('"');
	  return;
	case 'boolean':
	  e(String(x));
	  return;
	default:
	  e('null');
	  return;
	}
      }
      g(v);
    return a.join('');
  },
  /*
    Parse a JSON text, producing a JavaScript value.
  */
  parse: function (text) {
    return (/^(\s+|[,:{}\[\]]|"(\\["\\\/bfnrtu]|[^\x00-\x1f"\\]+)*"|-?\d+(\.\d*)?([eE][+-]?\d+)?|true|false|null)+$/.test(text)) &&
      eval('(' + text + ')');
  }
};

// client-side agent implementation 
var this_url = String(document.location);
function Agent() {
  this.debug = false; // default
  this.call = function () {
    var aa_sfunc = "";
    var aa_cfunc = "";
    var result = "";
    var xmlHttpObject;
    if(arguments.length<3) {
      alert("Incorrect number of parameters. Please check your function call");
      return;
    } 
    aa_url=arguments[0];
    aa_sfunc=arguments[1];
    aa_cfunc=arguments[2];
    
    if((aa_url==null)||(aa_url=="")) aa_url = this_url;
    var aa_poststr = "aa_afunc=call&aa_sfunc=" + encodeURI(aa_sfunc) +
      "&aa_cfunc=" + encodeURI(aa_cfunc);
    for(var i=3; i<arguments.length; i++) {
      if(typeof(arguments[i])=='object') {
        aa_poststr += "&aa_sfunc_args[]="+encodeURI(JSON.stringify(arguments[i]));
      } else {
        aa_poststr += "&aa_sfunc_args[]="+encodeURI(arguments[i]);
      }
    }
    xmlHttpObject = false;
    if (window.XMLHttpRequest) { // Mozilla, Safari,...
      xmlHttpObject = new XMLHttpRequest();
      if (xmlHttpObject.overrideMimeType) {
	xmlHttpObject.overrideMimeType('text/xml');
      }
    } else if (window.ActiveXObject) { // IE
      try {
	xmlHttpObject = new ActiveXObject("Msxml2.XMLHTTP");
      } catch (e) {
	try {
	  xmlHttpObject = new ActiveXObject("Microsoft.XMLHTTP");
	} catch (e) {}
      }
    }
    if (!xmlHttpObject) {
      alert('Agent unable to establish communication  :( ');
      return false;
    }
    
    if((aa_sfunc==null)||(aa_sfunc=="")) {
      if(arguments[3]) aa_poststr=arguments[3];
    }
    
    if((aa_cfunc==null)||(aa_cfunc=="")) {
      xmlHttpObject.open('POST', aa_url, false);
      xmlHttpObject.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
      xmlHttpObject.setRequestHeader("Content-length", arguments.length+1);
      //xmlHttpObject.setRequestHeader("Connection", "close"); // not needed
      xmlHttpObject.send(aa_poststr);
      return xmlHttpObject.responseText;
    } else {
      xmlHttpObject.onreadystatechange = function () {
        if (xmlHttpObject.readyState == 4) {
	  if (xmlHttpObject.status == 200) {
	    result = xmlHttpObject.responseText;
	    //Fit4net
	    //commented out, because else escaped " will cause the upper parse rules to fail
	    //don't know why this was done in the first place, maybe there was a good reason ?!
	    //result = result.replace(/\\\"/g,'"');
	    if(document.getElementById(aa_cfunc)) {
	      try {
		document.getElementById(aa_cfunc).innerHTML=result;
	      }
	      catch (e) {
		document.getElementById(aa_cfunc).value=result;
	      }               
	    } else {
	      if (JSON.parse(result)) 
		eval(aa_cfunc+"(JSON.parse(result));");
	      else 
		eval(aa_cfunc+"(result);");
	    }
	  } else {
	    if(xmlHttpObject.status!=0) {
	      alert('There was a problem with the request.');
	    }
	  }
        }
      }
      xmlHttpObject.open('POST', aa_url, true);
      xmlHttpObject.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
      xmlHttpObject.setRequestHeader("Content-length", arguments.length+1);
      //xmlHttpObject.setRequestHeader("Connection", "close"); // not needed
      xmlHttpObject.send(aa_poststr);
      return xmlHttpObject;
    }
  }
    this.listen = function (aa_event, aa_cfunc) {
      // listener function will come here
    }
    }
var agent = new Agent();