/**
 * @copyright Mindwarp Internet Solutions (c) 2007
 * @author $Author: tom $:
 * 
 * @version $Rev: 36 $:
 * @since $Date: 2007-11-12 14:08:59 +0100 (ma, 12 nov 2007) $:
 * 
 * @param url $URL: http://svn.katjavsderest.nl/cms/_resources/scripts/AjaxControl.js $:
 * 
 * @package Webapplicatie
 * @subpackage Resources
 *
 */

// check for XPath implementation
if( document.implementation.hasFeature("XPath", "3.0") )
{
   // prototying the XMLDocument
   XMLDocument.prototype.selectNodes = function(cXPathString, xNode)
   {
	  if( !xNode ) { xNode = this; }
	  var oNSResolver = this.createNSResolver(this.documentElement)
	  var aItems = this.evaluate(cXPathString, xNode, oNSResolver,
				   XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null)
	  var aResult = [];
	  for( var i = 0; i < aItems.snapshotLength; i++)
	  {
		 aResult[i] =  aItems.snapshotItem(i);
	  }
	  return aResult;
   }

   // prototying the Element
   Element.prototype.selectNodes = function(cXPathString)
   {
	  if(this.ownerDocument.selectNodes)
	  {
		 return this.ownerDocument.selectNodes(cXPathString, this);
	  }
	  else{throw "For XML Elements Only";}
   }
}

// check for XPath implementation
if( document.implementation.hasFeature("XPath", "3.0") )
{
   // prototying the XMLDocument
   XMLDocument.prototype.selectSingleNode = function(cXPathString, xNode)
   {
	  if( !xNode ) { xNode = this; }
	  var xItems = this.selectNodes(cXPathString, xNode);
	  if( xItems.length > 0 )
	  {
		 return xItems[0];
	  }
	  else
	  {
		 return null;
	  }
   }

   // prototying the Element
   Element.prototype.selectSingleNode = function(cXPathString)
   {
	  if(this.ownerDocument.selectSingleNode)
	  {
		 return this.ownerDocument.selectSingleNode(cXPathString, this);
	  }
	  else{throw "For XML Elements Only";}
   }
}

function AjaxControl(file) {
	this.xmlhttp = null;

	this.resetData = function() {
		this.method = "POST";
  		this.queryStringSeparator = "?";
		this.argumentSeparator = "&";
		this.URLString = "";
		this.encodeURIString = true;
  		this.execute = false;
  		this.element = null;
		this.elementObj = null;
		this.requestFile = file;
		this.vars = new Object();
		this.responseStatus = new Array(2);
		this.returnedValue = false;
		this.returnValue = null;
  	};

	this.resetFunctions = function() {
  		this.onLoading = function() { };
  		this.onLoaded = function() { };
  		this.onInteractive = function() { };
  		this.onCompletion = function() { };
  		this.onError = function() { };
		this.onFail = function() { };
	};

	this.reset = function() {
		this.resetFunctions();
		this.resetData();
	};

	this.createAJAX = function() {
		try {
			this.xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e1) {
			try {
				this.xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e2) {
				this.xmlhttp = null;
			}
		}

		if (! this.xmlhttp) {
			if (typeof XMLHttpRequest != "undefined") {
				this.xmlhttp = new XMLHttpRequest();
			} else {
				this.failed = true;
			}
		}
	};

	this.setVar = function(name, value){
		this.vars[name] = Array(value, false);
	};

	this.encVar = function(name, value, returnvars) {
		if (true == returnvars) {
			return Array(encodeURIComponent(name), encodeURIComponent(value));
		} else {
			this.vars[encodeURIComponent(name)] = Array(encodeURIComponent(value), true);
		}
	}

	this.processURLString = function(string, encode) {
		encoded = encodeURIComponent(this.argumentSeparator);
		regexp = new RegExp(this.argumentSeparator + "|" + encoded);
		varArray = string.split(regexp);
		for (i = 0; i < varArray.length; i++){
			urlVars = varArray[i].split("=");
			if (true == encode){
				this.encVar(urlVars[0], urlVars[1]);
			} else {
				this.setVar(urlVars[0], urlVars[1]);
			}
		}
	}

	this.createURLString = function(urlstring) {
		if (this.encodeURIString && this.URLString.length) {
			this.processURLString(this.URLString, true);
		}

		if (urlstring) {
			if (this.URLString.length) {
				this.URLString += this.argumentSeparator + urlstring;
			} else {
				this.URLString = urlstring;
			}
		}

		// prevents caching of URLString
		this.setVar("rndval", new Date().getTime());

		urlstringtemp = new Array();
		for (key in this.vars) {
			if (false == this.vars[key][1] && true == this.encodeURIString) {
				encoded = this.encVar(key, this.vars[key][0], true);
				delete this.vars[key];
				this.vars[encoded[0]] = Array(encoded[1], true);
				key = encoded[0];
			}

			urlstringtemp[urlstringtemp.length] = key + "=" + this.vars[key][0];
		}
		if (urlstring){
			this.URLString += this.argumentSeparator + urlstringtemp.join(this.argumentSeparator);
		} else {
			this.URLString += urlstringtemp.join(this.argumentSeparator);
		}
	}

	this.runResponse = function() {
		eval(this.response);
	}

	this.runAJAX = function(urlstring) {
		if (this.failed) {
			this.onFail();
		} else {
			this.createURLString(urlstring);
			if (this.element) {
				this.elementObj = document.getElementById(this.element);
			}
			if (this.xmlhttp) {
				var self = this;
				if (this.method == "GET") {
					totalurlstring = this.requestFile + this.queryStringSeparator + this.URLString;
					this.xmlhttp.open(this.method, totalurlstring, true);
				} else {
					this.xmlhttp.open(this.method, this.requestFile, true);
					try {
						this.xmlhttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded")
					} catch (e) { }
				}

				if(this.xmlhttp.overrideMimeType) {
					this.xmlhttp.overrideMimeType('text/xml');
				}

				this.xmlhttp.onreadystatechange = function() {
					switch (self.xmlhttp.readyState) {
						case 1:
							self.onLoading();
							break;
						case 2:
							self.onLoaded();
							break;
						case 3:
							self.onInteractive();
							break;
						case 4:
							self.response = self.xmlhttp.responseText;
							self.responseXML = self.xmlhttp.responseXML;//.loadXML(self.xmlhttp.responseText);
							self.responseStatus[0] = self.xmlhttp.status;
							self.responseStatus[1] = self.xmlhttp.statusText;

							if (self.execute) {
								self.runResponse();
							}

							if (self.elementObj) {
								elemNodeName = self.elementObj.nodeName;
								elemNodeName.toLowerCase();
								if (elemNodeName == "input"
								|| elemNodeName == "select"
								|| elemNodeName == "option"
								|| elemNodeName == "textarea") {
									self.elementObj.value = self.response;
								} else {
									setData(self.elementObj, self.response)
								}
							}
							if (self.responseStatus[0] == "200") {
								self.onCompletion();
							} else {
								self.onError();
							}

							self.URLString = "";
							break;
					}
				};

				this.xmlhttp.send(this.URLString);
			}
		}
	};

	this.reset();
	this.createAJAX();
}

 function loadAjaxInputSelect(val,targetUrl,targetSelect,valueField,textField){
	 	var ajaxControl = new AjaxControl();
		var url = targetUrl+'val='+val;
//		prompt('load select:'+targetSelect.name+' value: ' + val,url);
		

		ajaxControl.requestFile = url;	// Specifying which file to get
		ajaxControl.onCompletion = function(){
			var targetSelectObject = MM_findObj(targetSelect);
			targetSelectObject.length = 1;
			if(ajaxControl.responseXML.documentElement){
				valueNodes = ajaxControl.responseXML.documentElement.selectNodes(valueField.replace(/\./g,'/'));
				textNodes = ajaxControl.responseXML.documentElement.selectNodes(textField.replace(/\./g,'/'));
				for(i=0;i<valueNodes.length;i++){
					valueNode = valueNodes[i];

					newValue = null;
					if(valueNode.text){
						newValue = valueNode.text;
					}else if(valueNode.childNodes && valueNode.childNodes.length>0){
						if(valueNode.childNodes[0].data){
							newValue = valueNode.childNodes[0].data;
						}
					}

					newText = newValue;

					if(textNodes.length > i){
						if(textNodes[i].text){
							newText = textNodes[i].text;
						}else if(textNodes[i].childNodes && textNodes[i].childNodes.length>0){
							if(textNodes[i].childNodes[0].data){
								newText = textNodes[i].childNodes[0].data;
							}
						}
					}

					var opt = new Option(newText, newValue);
					targetSelectObject.options[targetSelectObject.options.length] = opt;
				}
			}
		};	// Specify function that will be executed after file has been found
		ajaxControl.runAJAX();		// Execute AJAX function
   }
   
   var lastAjaxComboBoxTimestamp = null;
   function loadAjaxComboBox(val,targetUrl,targetInput,valueField,textField){
	 	var ajaxControl = new AjaxControl();
	 	lastAjaxComboBoxTimestamp = (new Date()).getTime();
		var url = targetUrl+'val='+val+'&code='+lastAjaxComboBoxTimestamp;
		prompt('load input:'+targetInput.name+' value: ' + val,url);
		

		ajaxControl.requestFile = url;	// Specifying which file to get
		ajaxControl.onCompletion = function(){
			var targetInputObject = MM_findObj(targetInput);
			
		};	// Specify function that will be executed after file has been found
		ajaxControl.runAJAX();		// Execute AJAX function
   }

  function loadAjaxObject(val,targetUrl,target,valueField)  {
  		var ajaxControl = new AjaxControl();
   		//var val = obj.value;
		var url = targetUrl+'val='+val;
//		prompt('load obj:'+target.id+' value: ' + val,url);
		ajaxControl.requestFile = url;	// Specifying which file to get
		ajaxControl.onCompletion = function(){
			var targetObject = MM_findObj(target);
			setData(targetObject,'');
			if(ajaxControl.responseXML.documentElement){
				valueNode = ajaxControl.responseXML.documentElement.selectSingleNode(valueField.replace(/\./g,'/'));
				if(valueNode){
					content = null;
					if(valueNode.text){
						content = valueNode.text;
					}else if(valueNode.childNodes && valueNode.childNodes.length>0){
						if(valueNode.childNodes[0].data){
							content = valueNode.childNodes[0].data;
						}
					}
					if(content != null){
						setData(targetObject,content.replace(/\n/g,'<br>'));
//						execJS(targetObject);
					}
				}
			}
		};	// Specify function that will be executed after file has been found
		ajaxControl.runAJAX();		// Execute AJAX function
  }
  
  function loadAjaxContent(targetUrl,target)  {
  		var ajaxControl = new AjaxControl();
//		prompt('load obj:'+target.id,url);
		ajaxControl.requestFile = targetUrl;	// Specifying which file to get
		ajaxControl.onCompletion = function(){
			var targetObject = MM_findObj(target);
			setData(targetObject,'');
			if(ajaxControl.responseXML.documentElement){
				valueNode = ajaxControl.responseXML.selectSingleNode('content');
				if(valueNode){
					content = null;
					if(valueNode.text){
						content = valueNode.text;
					}else if(valueNode.childNodes && valueNode.childNodes.length>0){
						if(valueNode.childNodes[0].data){
							content = valueNode.childNodes[0].data;
						}
					}
					if(content != null){
						setData(targetObject,content);
						execJS(targetObject);
					}
				}
			}
		};	// Specify function that will be executed after file has been found
		ajaxControl.runAJAX();		// Execute AJAX function
  }
  
  

  function loadAjaxInput(val,targetUrl,targetInput,valueField)  {
  		var ajaxControl = new AjaxControl();
   		//var val = obj.value;
		var url = targetUrl+'val='+val;
		ajaxControl.requestFile = url;	// Specifying which file to get
		ajaxControl.onCompletion = function(){
			var targetInputObject = MM_findObj(targetInput);
			targetInputObject.value = '';
			if(ajaxControl.responseXML.documentElement){
				valueNode = ajaxControl.responseXML.documentElement.selectSingleNode(valueField.replace(/\./g,'/'));
				if(valueNode){
					targetInputObject.value = valueNode.text;
				}
			}
		};	// Specify function that will be executed after file has been found
		ajaxControl.runAJAX();		// Execute AJAX function
  }

  function submitAjaxValue(val,targetUrl)  {
  		var ajaxControl = new AjaxControl();
   		//var val = obj.value;
		var url = targetUrl+'val='+val;
		ajaxControl.requestFile = url;	// Specifying which file to get
		ajaxControl.onCompletion = function(){
//			alert('done')
		};	// Specify function that will be executed after file has been found
		ajaxControl.runAJAX();		// Execute AJAX function
  }

  function loadAjaxValue(val,targetUrl)  {
  		var ajaxControl = new AjaxControl();
		var url = targetUrl+'val='+val;
		ajaxControl.requestFile = url;	// Specifying which file to get
		ajaxControl.onCompletion = function(){
			if(ajaxControl.responseXML.documentElement){
				valueNode = ajaxControl.responseXML.documentElement.selectSingleNode('value');
				if(valueNode){
					ajaxControl.returnValue = valueNode.text;
				}
				ajaxControl.returnedValue = true;;
			}
		};	// Specify function that will be executed after file has been found
		ajaxControl.runAJAX();		// Execute AJAX function
		return ajaxControl;
  }
  
  function loadAjaxValueFunction(targetUrl,func)  {
  		var ajaxControl = new AjaxControl();
		var url = targetUrl;
		ajaxControl.requestFile = url;	// Specifying which file to get
		ajaxControl.onCompletion = function(){
			if(ajaxControl.responseXML.documentElement){
				valueNode = ajaxControl.responseXML.selectSingleNode('value');
				if(valueNode){
//					prompt(valueNode.text,valueNode.text)
					if(valueNode.text){
						content = valueNode.text;
					}else if(valueNode.childNodes && valueNode.childNodes.length>0){
						if(valueNode.childNodes[0].data){
							content = valueNode.childNodes[0].data;
						}
					}
//					alert('window.'+func+'(\''+content+'\');');
					eval('window.'+func+'(\''+content+'\');');
				}
				ajaxControl.returnedValue = true;;
			}
		};	// Specify function that will be executed after file has been found
		ajaxControl.runAJAX();		// Execute AJAX function
		return ajaxControl;
  }

  function ajaxLoader(ajaxControl){
  	if(!ajaxControl.returnedValue){
  		setTimeout('ajaxLoader',10,ajaxControl)
  	}else{
  		alert('found!')
  		return ajaxControl.returnValue;

  	}
  }

  function reloadAjaxPopup(url, targetPopup){
  		var ajaxControl = new AjaxControl();
	 	var popup = MM_findObj(targetPopup);
	 	
	 	if(!popup.url || popup.url != url){
	 		popup.url = url;
	 		popup.loaded = false;
	 	}

		ajaxControl.requestFile = url;	// Specifying which file to get
		ajaxControl.onCompletion = function(){			
			if(ajaxControl.responseXML.documentElement){
				var root = 	ajaxControl.responseXML.documentElement;

				popup.loaded = true;

				for(i=0;i<root.childNodes.length;i++){
					objName = root.childNodes.item(i).nodeName;
					obj = MM_findObj(objName);
//					alert(objName + ':' +obj);
					if(obj){
						content = null;
						if(root.childNodes.item(i).text){
							content = root.childNodes.item(i).text;
						}else if(root.childNodes.item(i).childNodes && root.childNodes.item(i).childNodes.length>0){
							if(root.childNodes.item(i).childNodes[0].data){
								content = root.childNodes.item(i).childNodes[0].data;
							}
						}
//						alert(content);	
						if(content != null){
							setData(obj,content);							
							execJS(obj);
							tagSelectNodes(obj, targetPopup);
						}
					}
				}
			}

			if(window.noSelect)
			{
				noSelect();
			}
		};	// Specify function that will be executed after file has been found
		ajaxControl.runAJAX();		// Execute AJAX function
  }

  function loadAjaxPopup(targetUrl, targetPopup, val, caption){
	 	var url = targetUrl +'target='+targetPopup+'&value='+URLEncode(val)+'&caption='+URLEncode(caption)+'&originatingUrl='+URLEncode(this.location.href);
//	 	prompt('load popup:'+targetPopup+' value: ' + val,url);
	 	reloadAjaxPopup(url, targetPopup);
   }

   function submitAjax(form, targetUrl, targetObj, valueField){
   		var ajaxControl = new AjaxControl();
   		var formObj = MM_findObj(form);
   		var url = targetUrl + '?targetobj=' + targetObj;
   		var targetObj = MM_findObj(targetObj);
   		for(i=0;i<formObj.elements.length;i++){
   			if((formObj.elements[i].type != 'radio' && formObj.elements[i].type != 'checkbox') || formObj.elements[i].checked){
				url += formObj.elements[i].name.substr(form.length + 2) + '=' + URLEncode(formObj.elements[i].value) + '&';
				url += formObj.elements[i].name + '=' + URLEncode(formObj.elements[i].value) + '&';
   			}
   		}
//   		prompt('submit popup:' +targetObj.id+' form:'+formObj.name,url);
   		ajaxControl.requestFile = url;	// Specifying which file to get
		ajaxControl.onCompletion = function(){
			if(ajaxControl.responseXML.documentElement){
				valueNode = ajaxControl.responseXML.documentElement.selectSingleNode(valueField.replace(/\./g,'/'));
				if(valueNode){
					content = null;
					if(valueNode.text){
						content = valueNode.text;
					}else if(valueNode.childNodes && valueNode.childNodes.length>0){
						if(valueNode.childNodes[0].data){
							content = valueNode.childNodes[0].data;
						}
					}
					if(content != null){
						setData(targetObj,content);
						execJS(targetObj);
						tagSelectNodes(targetObj, targetObj.parentName);
						targetObj.scrollTop = 0;
					}
				}

				for(i=0;i<ajaxControl.responseXML.documentElement.childNodes.length;i++){
					objName = ajaxControl.responseXML.documentElement.childNodes.item(i).nodeName;
					obj = MM_findObj(objName);
					if(obj){
						valueNode = ajaxControl.responseXML.documentElement.childNodes.item(i);
						content = null;
						if(valueNode.text){
							content = valueNode.text;
						}else if(valueNode.childNodes && valueNode.childNodes.length>0){
							if(valueNode.childNodes[0].data){
								content = valueNode.childNodes[0].data;
							}
						}
						if(content != null){
							setData(obj,content);
							execJS(obj);
							tagSelectNodes(obj, targetObj.parentName);

							obj.scrollTop = 0;
						}
					}
				}
			}
		};	// Specify function that will be executed after file has been found
		ajaxControl.runAJAX();		// Execute AJAX function
   }