var ie = document.all != null;
var moz = !ie && document.getElementById != null && document.layers == null;
if (!Bs_Objects){
	var Bs_Objects         = [];
};

if (!Bs_XmlRequestQueue) {
	var Bs_XmlRequestQueue = [];
};

function bsTree_loadNodeChildrenFromServer_callback() {
	
	for (var bsObjectID in Bs_XmlRequestQueue) {
		if (typeof(Bs_XmlRequestQueue[bsObjectID]) == 'object') {
			for (var nodeID in Bs_XmlRequestQueue[bsObjectID]) {
				if (typeof(Bs_XmlRequestQueue[bsObjectID][nodeID]) == 'object') {
					if (Bs_XmlRequestQueue[bsObjectID][nodeID].readyState == 4) {
						if (Bs_XmlRequestQueue[bsObjectID][nodeID].status == 200) {
							eval(Bs_XmlRequestQueue[bsObjectID][nodeID].responseText);
							delete Bs_XmlRequestQueue[bsObjectID][nodeID];
							var elm = Bs_Objects[bsObjectID].getElement(nodeID);
							elm._unloadedChildren = false;
							elm._checkedForChildren = true;
							elm.addChildrenByArray(childrenData, false);
							if (elm._level == 0) {
								myTree._afterImgPreload();
							} else {
							}
						} else {
							alert("There was a problem retrieving the XML data:\n" + Bs_XmlRequestQueue[bsObjectID][nodeID].statusText);
						}
					}
				}
			}
		}
	}
}

function Bs_Tree() {
	this._id;
	this._objectId;
	this.autoCollapse      = false;
	this.lookAhead = 2;
	this.loadAhead = 2;
	this.initAhead = 2;
	this.renderAhead = 2;
	this._workStack = new Array();
	this.rememberState = false;
	this.captionBgColor    = "#FFFFFF";
	this.captionBgCreatedColor    = "#FFFFFF";
	this.linkStyle;
	this.divStyle = 'font-family: Arial, Helvetica, sans-serif; font-size: 11px;';
	this.showPseudoElement = false;
	this.useCheckboxSystem = false;
	this.checkboxSystemWalkTree = 3;
	this.checkboxSystemIfPartlyThenFull = true;
	this.checkboxSystemImgDir;
	this.checkboxSystemGuiNochange;
	this.useRadioButton = false;
	this.radioButtonName;
	this.imageDir = url_of_img+'/_default/menu/';
	this.imageHeight = 16;
	this.useFolderIcon = true;
	this.useLeaf = true;
	this.walkTree = true;
	this.useAutoSequence = true;
	this.draggable = false;
	this._clearingHouse = new Array;
	this._pseudoElement;
	this._currentActiveElement;
	this._elementSequence = 0;
	this._errorArray;
	this.stopWatch;
	this.simple = true;
	
	this._constructor = function() {
		this._id = Bs_Objects.length;
		Bs_Objects[this._id] = this;
		this._objectId = "Bs_Tree_" + this._id;
		var a = [];
		a['id']               = 'pseudoElement001';
		a['caption']          = "root";
		a['menuid']           = "";
		a['menu_level']       = "";
		a['url']              = "";
		a['target']           = "";
		a['extlink']          = false;
		a['isOpen']           = true;
		a['created']          = false;
		a['isParent']         = false;
		this._pseudoElement = this._createTreeElement(a, 0);
	}
	
	this.loadSkin = function(skinName) {
		switch (skinName) {
			case 'win2k':
			case 'win98':
				this.imageDir = url_of_img+'/_default/menu/';
				this.imageHeight = 16;
				break;
			case 'winxp':
				this.imageDir = url_of_img+'/_default/menu/';
				this.imageHeight = 17;
				break;
			case 'bobby-blue':
				this.imageDir      = url_of_img+'/_default/menu/';
				this.imageHeight   = 16;
				this.useFolderIcon = false;
				break;
			default:
				return false;
		}
		return true;
	}
	
	this.setDisabled = function(b) {
		if (typeof(b) == 'undefined') b = !this._disabled;
		this._disabled = b;
		for (var elementId in this._clearingHouse) {
			if (this.useRadioButton) {
				var radioId  = this.getRadioButtonName() + '_' + elementId;
				alert(radioId)
				var radioElm = document.getElementById(radioId);
				if (radioElm) {
					radioElm.readonly = this._disabled;
					radioElm.disabled = this._disabled;
				}
			} else if (typeof(this._clearingHouse[elementId]._checkboxObject) != 'undefined') {
				this._clearingHouse[elementId]._checkboxObject.setDisabled(this._disabled);
			}
		}
	}
	
	this.initByArray = function(arr) {
		this._pseudoElement._unloadedChildren = false;
		this._pseudoElement._checkedForChildren = true;
		if (arr.length > 0) {
			for (var i=0; i<arr.length; i++) {
				var e = this._createTreeElement(arr[i], 1);
				if (e == false) {
					return false;
				}
				this._pseudoElement.addChild(e);
			}
		} else {
			for (var key in arr) {
				if (typeof(arr[key]) == 'object') {
					var e = this._createTreeElement(arr[key], 1);
					if (e == false) {
						return false;
					}
					this._pseudoElement.addChild(e);
				}
			}
		}
		return true;
	}
	
	this.getActiveElement = function() {
		if (typeof(this._currentActiveElement) != 'undefined') return this._currentActiveElement;
		return false;
	}
	
	this.setActiveElement = function(treeElement) {
		this._currentActiveElement = treeElement;
	}
	
	this.hasNodeLoader = function() {
		return (typeof(this._nodeLoaderType) != 'undefined');
	}
	
	this.setNodeLoader = function(type, url) {
		this._nodeLoaderType = type;
		this._nodeLoaderUrl  = url;
		if (!this._pseudoElement.hasChildren()) {
			this._pseudoElement._unloadedChildren = true;
		}
	}
	
	this.loadNodeChildrenFromServer = function(nodeID) {
		if (typeof(Bs_XmlRequestQueue[this._id]) == 'undefined') {
			Bs_XmlRequestQueue[this._id] = new Array();
		} else {
			if (typeof(Bs_XmlRequestQueue[this._id][nodeID]) != 'undefined') return;
		}
		
		if (window.ActiveXObject) {
			Bs_XmlRequestQueue[this._id][nodeID] = new ActiveXObject("Microsoft.XMLHTTP");
		} else if (window.XMLHttpRequest) {
			Bs_XmlRequestQueue[this._id][nodeID] = new XMLHttpRequest();
		} else {
			return false;
		}
		var url = this._nodeLoaderUrl + '?bsObjectID=' + this._id + '&nodeID=' + nodeID;
		Bs_XmlRequestQueue[this._id][nodeID].onreadystatechange = bsTree_loadNodeChildrenFromServer_callback;
		Bs_XmlRequestQueue[this._id][nodeID].open("GET", url, true);
		Bs_XmlRequestQueue[this._id][nodeID].send();
	}
	
	this._createTreeElement = function(arr, level) {
		if (typeof(level) == 'undefined') level = 1;
		var e = new Bs_TreeElement();
		var status = e.initByArray(arr, this, level);
		if (!status) {
			this._addError(e.getLastError());
			return false;
		}
		this._clearingHouse[e.id] = e;
		try {
		if (typeof(arr['children'])=='object') {
			e._unloadedChildren   = false;
			e._checkedForChildren = true;
			if ((this.useCheckboxSystem && (this.checkboxSystemWalkTree >= 2)) || e.isOpen || ((this.lookAhead +2) > level) || (this.lookAhead == -1) || ((typeof(e.parent) == 'object') && (e.parent.isOpen))) {
				if (arr['children'].length > 0) {
					
					for (var i=0, n=arr['children'].length; i<n; i++) {
						var newE = this._createTreeElement(arr['children'][i], level +1);
						if (!newE) return false;
						e.addChild(newE);
					}
					
				} else {
					for (key in arr['children']) {
						var newE = this._createTreeElement(arr['children'][key], level +1);
						if (!newE) return false;
						e.addChild(newE);
				}
			}
		} else {
			e._undoneChildren = arr['children'];
		}
	}
	} catch (e) {}
	return e;
}

this.getElement = function(elementId) {
	if (elementId == 0) 
		return this._pseudoElement;
	if (typeof(this._clearingHouse[elementId]) == 'object') {
		return this._clearingHouse[elementId];
	} else {
		return false;
	}
}


this.getElementByCaptionPath = function(data) {
	var elm = this._pseudoElement;
	for (var i=0, n=data.length; i<n; i++) {
		var newElm = null;
		for (var j=0, jn=elm._children.length; j<jn; j++) {
			if (elm._children[j].caption == data[i]) {
				newElm = elm._children[j];
				elm = newElm;
				if (typeof(elm._undoneChildren) == 'object') {
					for (var k=0, kn=elm._undoneChildren.length; k<kn; k++) {
						var newE = this._createTreeElement(elm._undoneChildren[k], elm._level +1);
						elm.addChild(newE);
					}
					elm._undoneChildren = false;
				}
				break;
			}
		}
		
		if (newElm == null) return false;
	}
	return newElm;
}


this.removeElement = function(elementId) {
	if (typeof(this._clearingHouse[elementId]) == 'undefined') return false;
	var elm = this._clearingHouse[elementId];
	if ((typeof(elm.parent) == 'object') && (typeof(elm.parent._children) == 'object')) {
		for (var i=0, n=elm.parent._children.length; i<n; i++) {
			if (elm.parent._children[i].id == elementId) {
				elm.parent._children.deleteItem(i);
				break;
			}
		}
	}
	
	this._clearingHouse.deleteItemHash(elementId);
	
	for (var i=0, n=elm._children.length; i<n; i++) {
		this._clearingHouse.deleteItemHash(elm._children[i].id);
	}
	
	if ((typeof(elm.parent) == 'object') && (elm.parent._isOutrendered)) {
		elm.parent.render(true, true);
	}
	return true;
}

this.expandAll = function() {
	this._pseudoElement.expandAll();
}


this.collapseAll = function() {
	this._pseudoElement.collapseAll(false);
}


this.draw = function() {
	if (this.simple) {
		var content = this._pseudoElement.renderSimple();
	} else {
		var content = this._pseudoElement.render();
	}
	
	document.writeln(content[0]);
	eval(content[1]);
}

this.toHtml = function() {
	if (this.hasNodeLoader()) {
		alert("Webmaster: Sorry, the toHtml() method cannot be used together with a node loader. Use drawInto() or draw().");
		return;
	}
	if (this.simple) {
		return this._pseudoElement.renderSimple();
	} else {
		return this._pseudoElement.render();
	}
}


this.executeOnElement = function(id, func, params) {
	if (this._clearingHouse[id]) {
		if (this._clearingHouse[id][func]) {
			if (params) {
				switch (params.length) {
					case 1:
						return this._clearingHouse[id][func](params[0]);
						break;
					case 2:
						return this._clearingHouse[id][func](params[0], params[1]);
						break;
					case 3:
						return this._clearingHouse[id][func](params[0], params[1], params[2]);
						break;
					case 4:
						return this._clearingHouse[id][func](params[0], params[1], params[2], params[3]);
						break;
				}
			} else {
				return this._clearingHouse[id][func]();
			}
		}
	}
	return;
}

this.getJavascriptCode = function() {
	return this._pseudoElement.getJavascriptCode('a', true);
}

this.elementToggleOpenClose = function(id) {
	this._clearingHouse[id].toggleOpenClose();
}

this.elementOpenWalkUp = function(id) {
	if (typeof(this._clearingHouse[id]) != 'undefined') {
		var elm = this._clearingHouse[id];
		elm.open(true);
		if (typeof(elm.parent) != 'undefined') this.elementOpenWalkUp(elm.parent.id);
	} else {
		return false;
	}
	return true;
}

this.elementCloseWalkUp = function(id) {
	if (typeof(this._clearingHouse[id]) != 'undefined') {
		var elm = this._clearingHouse[id];
		elm.close(true);
		if (typeof(elm.parent) != 'undefined') this.elementCloseWalkUp(elm.parent.id);
	} else {
		return false;
	}
	return true;
}

this.elementCloseWalkDown = function(id) {
	if (typeof(id) == 'undefined') {
		var elm = this._pseudoElement;
	} else if (typeof(this._clearingHouse[id]) != 'undefined') {
		var elm = this._clearingHouse[id];
		elm.close(true);
	} else {
		return false;
	}
	
	if (typeof(elm._children) != 'undefined') {
		for (var i=0; i<elm._children.length; i++) {
			this.elementCloseWalkDown(elm._children[i].id);
		}
	}
	
	return true;
}

this.elementOpen = function(id) {
	if (typeof(this._clearingHouse[id]) != 'undefined') {
		this._clearingHouse[id].open();
	}
}

this.elementClose = function(id) {
	this._clearingHouse[id].close();
}

this.openPath = function(data, valueType) {
	var elm = this.getElementByCaptionPath(data);
	if (elm == false) return false;
	this.elementOpenWalkUp(elm.id);
	return true;
}

this.elementCheckboxEvent = function(id, value) {
	this._clearingHouse[id].checkboxEvent(value);
}

this.applyState = function() {
	if (typeof(getCookie) == 'undefined') {
		alert('Webmaster: please make sure core/lang/Bs_Cookie.lib.js is included for the rememberState/applyState feature.');
		return false;
	}
	
	var name = this._objectId;
	var data = getCookie(name);
	for (treeElementId in data) {
		var treeElm = this.getElement(treeElementId);
		for (action in data[treeElementId]) {
			if (data[treeElementId][action]) {
				treeElm.open();
			} else {
				treeElm.close();
			}
		}
	}
	return true;
}

this._updateStateCookie = function(treeElementId, action, value) {
	if (typeof(setCookie) == 'undefined') {
		alert('Webmaster: please make sure core/lang/Bs_Cookie.lib.js is included for the rememberState/applyState feature.');
		return false;
	}
	
	var name = this._objectId;
	var data = getCookie(name);
	if ((typeof(data) != 'object') || (data == null)) data = new Object();
	if ((typeof(data[treeElementId]) != 'object') || (typeof(data[treeElementId]) == null)) {
		data[treeElementId] = new Object();
	}
	
	if (typeof(data[treeElementId][action]) == 'undefined') {
		data[treeElementId][action] = value;
	} else {
		if (data[treeElementId][action] != value) {
			delete data[treeElementId][action];
			delete data[treeElementId];
		}
	}
	
	setCookie(name, data);
	return true;
}


this.getRadioButtonName = function () {
	if (typeof(this.radioButtonName) != 'undefined') {
		return this.radioButtonName;
	} else {
		return 'bsTreeRad_' + this._objectId;
	}
}

this.debugDumpTree = function(elm, indent) {
	if (typeof(elm) == 'undefined') {
		elm    = this._pseudoElement;
		indent = '';
		var firstCall = true;
	}
	
	var ret = '';
	if (typeof(elm._children) == 'object') {
		for (var i=0; i<elm._children.length; i++) {
			ret += indent + i + ': ' + elm._children[i].id + ': ' + elm._children[i].caption + "\n";
			ret += this.debugDumpTree(elm._children[i], indent + '  ');
		}
	}
	
	if (firstCall) {
		alert(ret);
	} else {
		return ret;
	}
}

this._addError = function(str) {
	if (typeof(this._errorArray) == 'undefined') {
		this._errorArray = new Array(str);
	} else {
		this._errorArray[this._errorArray.length] = str;
	}
}

this.getLastError = function() {
	if (typeof(this._errorArray) != 'undefined') {
		if (this._errorArray.length > 0) {
			return this._errorArray[this._errorArray.length -1];
		}
	}
	return false;
}

this.old_drawInto = function(id) {
	if (this.simple) {
		var content = this._pseudoElement.renderSimple();
	} else {
		var content = this._pseudoElement.render();
	}
	
	var e       = document.getElementById(id);
	if (e) {
		e.innerHTML = content[0];
		if ('' != content[1]) eval(content[1]);
	}
}

this._imgPreload = function() {
	var id = this.globalId;
	var e  = document.getElementById(id);
	var ii = 0;
	var outTemp = new Array();
	outTemp[ii++] = '<img src="' + this.imageDir + 'line1.gif" border="0" style="display:none;">';
	outTemp[ii++] = '<img src="' + this.imageDir + 'line2.gif" border="0" style="display:none;">';
	outTemp[ii++] = '<img src="' + this.imageDir + 'line3.gif" border="0" style="display:none;">';
	outTemp[ii++] = '<img src="' + this.imageDir + 'minus1.gif" border="0" style="display:none;">';
	outTemp[ii++] = '<img src="' + this.imageDir + 'minus2.gif" border="0" style="display:none;">';
	outTemp[ii++] = '<img src="' + this.imageDir + 'minus3.gif" border="0" style="display:none;">';
	outTemp[ii++] = '<img src="' + this.imageDir + 'plus1.gif" border="0" style="display:none;">';
	outTemp[ii++] = '<img src="' + this.imageDir + 'plus2.gif" border="0" style="display:none;">';
	outTemp[ii++] = '<img src="' + this.imageDir + 'plus3.gif" border="0" style="display:none;">';
	outTemp[ii++] = '<img src="' + this.imageDir + 'line3.gif" border="0" style="display:none;">';
	outTemp[ii++] = '<img src="' + this.imageDir + 'empty.gif" border="0" style="display:none;">';
	outTemp[ii++] = '<img src="' + this.imageDir + 'leaf_c.gif" border="0" style="display:none;">';
	outTemp[ii++] = '<img src="' + this.imageDir + 'folderClosed.gif" border="0" style="display:none;">';
	outTemp[ii++] = '<img src="' + this.imageDir + 'folderOpen.gif" border="0" style="display:none;">';
	if (e) e.innerHTML = outTemp.join('');
}

this._afterImgPreload = function() {
	var id = this.globalId;
	if (this.hasNodeLoader() && !this._pseudoElement._checkedForChildren && !this.showPseudoElement) {
		this.loadNodeChildrenFromServer(this._pseudoElement.id);
		return;
	}
	
	if (this.simple) {
		var content = this._pseudoElement.renderSimple();
	} else {
		var content = this._pseudoElement.render();
	}
	
	var e       = document.getElementById(id);
	if (e) {
		e.innerHTML = content[0];
		if ('' != content[1]) {
			eval(content[1]);
		}
		
		this._afterRender();
	}
}

this._afterRender = function() {
	if (typeof(this._workStack) == 'object') {
		for (var i=0; i<this._workStack.length; i++) {
			eval(this._workStack[i]);
			delete this._workStack[i];
		}
	}
}


this.drawInto = function(id) {
	this.globalId = id;
	setTimeout('Bs_Objects['+this._id+']._imgPreload()', 0);
	setTimeout('Bs_Objects['+this._id+']._afterImgPreload()', 5);
}

this._constructor();
}