// this script is based on TigraMenu V1.1 (http://www.softcomplex.com/products/tigra_menu_tree/)
// well, not much left of original code,
// but TigraMenu is a very good piece of code to start from ...
// --
// massive modifications 2004 - 03 - 10
// by Nils Clark-Bernhard (nils@n-cb.de)
// --
var menu_item_depth = 5;          // how many parts has one menu item ???
var root_closeable  = false;      // wether root is closeable or not
var all_images      = new Array(); // image preload array
var chefopened = false;
function browser_detect(){
  var Netscape, MSIE, Opera, Unknown;
  var Win, Mac, Other;
  var NetscapeVer, MSIEVer, OperaVer;

  // detect browser
  
  Netscape = navigator.appName == "Netscape";
  MSIE = navigator.appName == "Microsoft Internet Explorer";
  Opera = navigator.userAgent.indexOf("Opera") > -1;
  Unknown = !(Netscape || MSIE || Opera);
  
  // detect platform
  
  Win = navigator.userAgent.indexOf("Win") > -1;
  Mac = navigator.userAgent.indexOf("Mac") > -1;
  Other = !(Win || Mac);
  
  // now extract version numbers
  
  if(Netscape) {
    NetscapeVer = parseFloat(navigator.appVersion);
  }
  else if(MSIE) {
    n = navigator.userAgent;
    MSIEVer = n.substr(n.indexOf("MSIE ")+("MSIE ").length, 4);
    MSIEVer = parseFloat(MSIEVer); 
    // converts it into a floatint point number
    
    if(Opera) {
      OperaVer = n.substr(n.indexOf("Opera ")+("Opera ").length, 4);
      OperaVer = parseFloat(OperaVer);
    }
  }

  // now do something!
  
	if(Mac && MSIE) {
    	return true;
  	} else {
		return false;
	}

}

function tree (a_items, a_template) {
	
	this.a_tpl           = a_template;
	this.a_config        = a_items;
	this.object_root     = this;
	this.a_index         = [];
	this.object_selected = null;
	this.node_depth      = -1;
	
	// added
	this.object_locked   = null;
	this.clicked_object  = null;
	
	var object_icone = new Image();
	var object_iconl = new Image();
	
	object_icone.src = a_template['icon_e'];
	object_iconl.src = a_template['icon_l'];
	a_template['im_e'] = object_icone;
	a_template['im_l'] = object_iconl;
	
	for (var i = 0; i < 64; i++)
		if (a_template['icon_' + i]) {
			var object_icon = new Image();
			a_template['im_' + i] = object_icon;
			object_icon.src = a_template['icon_' + i];
		}
	
	this.toggle = function (node_id) { 
		var object_item = this.a_index[node_id]; 
		object_item.open(object_item.b_opened) 
		if(chefopened!=false&&chefopened<node_id)
		{
			this.a_index[chefopened].is_open=false;
			document.images['i_img0_' + chefopened].src = this.a_index[chefopened].img_normal;
			chefopened=false;
		}
	};

	// added
	this.close = function (node_id) { 
		var object_item = this.a_index[node_id]; 
		object_item.close() 
	};
	
	// added 
	this.setmark = function (node_id) { 
		var object_item = this.a_index[node_id]; 
		object_item.setmark() 
	};

	// added 
	this.item_reset = function (node_id) { 
		var object_item = this.a_index[node_id]; 
		object_item.item_reset() 
	};		
	
	this.select = function (node_id) { 
		return this.a_index[node_id].select(); 
	};
	
	// modified to trigger mouseout
	this.mout   = function (node_id) { 
		this.a_index[node_id].mouse_out('out');
	};
	
	// modified to trigger mouseover
	this.mover  = function (node_id) { 
		this.a_index[node_id].mouse_over();
	};

	this.a_children = [];
	for (var i = 0; i < a_items.length; i++)
		new tree_item(this, i);

	this.node_id = trees.length;
	trees[this.node_id] = this;
	
	for (var i = 0; i < this.a_children.length; i++) {
		document.write(this.a_children[i].init());
		this.a_children[i].open();
	}
}

function tree_item (object_parent, node_order) {

	this.node_depth  = object_parent.node_depth + 1;
	this.a_config = object_parent.a_config[node_order + (this.node_depth ? menu_item_depth : 0)];
	if (!this.a_config) return;

	this.object_root    = object_parent.object_root;
	this.object_parent  = object_parent;
	this.node_order     = node_order;
	
	this.b_opened       = !this.node_depth;
	this.node_id        = this.object_root.a_index.length;
	
	this.object_root.a_index[this.node_id] = this;
	object_parent.a_children[node_order]   = this;

	this.a_children = [];
	for (var i = 0; i < this.a_config.length - 2; i++)
		new tree_item(this, i);

	// -- this.get_icon   = item_get_icon;
	this.open       = item_open;
	this.select     = item_over;
	this.init       = item_init;
	
	// -- this.upstatus   = item_upstatus;
	
	// added
	this.is_open    = false;
	
	this.is_last    = function () { 
		return this.node_order == this.object_parent.a_children.length - 1;
	};
	
	// added 
	this.close          = item_close;
	this.setmark        = item_setmark;
	this.get_node       = item_get_node;
	this.item_reset	    = item_reset;
	
	this.mouse_over     = item_over;
	this.mouse_out      = item_over;
	
	this.img_normal     = this.a_config[0];
	this.img_over       = (this.a_config[1] 
				? this.a_config[1] : this.a_config[0]);
	this.img_selected   = (this.a_config[1] 
				? this.a_config[1] : this.a_config[0]);
	this.descr_title    = (this.a_config[2]
				? this.a_config[2] : '');
				
	is_mac_ie 			= browser_detect();
	this.url            = (this.a_config[3] 
			 	? this.a_config[3] : (this.a_children.length 
					? (is_mac_ie == true 
						? 'javascript: trees[' + (this.object_root.node_id ? this.object_root.node_id : 0) + '].toggle(' + this.node_id + ')' : '#') 
					: null));
	this.item_target    = (this.a_config[3] 
				? this.object_root.a_tpl['target'] : '_self');
				
	this.node_type      = this.a_config[4];
	
	all_images[all_images.length++] = this.img_normal;
	all_images[all_images.length++] = this.img_over;
	all_images[all_images.length++] = this.img_selected;
	
}


function item_open (b_close) {
	// b_close is TRUE or FALSE
	// trigger close olditem but prevent from retrigger recursively
	var object_olditem = this.object_root.object_selected;
	var object_locked  = this;
	// allow root to be opened on start
	if (this.node_id == 0 || this.is_open != true){
		// don't close manually, don't execute close, if no children or if parent open
		this.is_open = (!b_close && this.a_children.length) ? true : false;
		
		if (object_olditem && object_locked && object_locked != object_olditem) {
			// only close olditem, if current item
			// has children itself and current open node is not 
			// a parent node of this node
			if (this.a_children.length && object_olditem != this.object_parent){				
				this.object_root.close(object_olditem.node_id)
			}else if(this.a_children.length && object_olditem.node_id == 0){
				// switch image but don't close
				object_olditem.is_open = false;
				this.object_root.close(object_olditem.node_id);
			}else{
				this.setmark(object_olditem.node_id);
			}
		}	
	
		var object_idiv = get_element('i_div' + this.object_root.node_id + '_' + this.node_id);
		if (!object_idiv) return;
		
		if (!object_idiv.innerHTML) {
			var a_children = [];
			for (var i = 0; i < this.a_children.length; i++)
				a_children[i]= this.a_children[i].init();
			object_idiv.innerHTML = a_children.join('');
		}
		
		if (this.node_id == 0) {
			object_idiv.style.display = (root_closeable ? 'none' : 'block');
		}else{
			object_idiv.style.display = (b_close ? 'none' : 'block');
		}
		if(this.node_type == 'chef')
		{
			this.a_children[0].is_open=true;
			document.images['i_img0_' + (this.node_id+1)].src = this.a_children[0].img_selected;
			chefopened=(this.node_id+1);
		}
		
		this.b_opened = !b_close; // toggle TRUE or FALSE

		var object_iicon = document.images['i_img' + this.object_root.node_id + '_' + this.node_id];

		if (object_iicon) {
			object_iicon.src = this.img_selected;
		}
	
	}
	// set olditem to this
	this.object_root.object_selected = this;	
	
	this.item_reset();	
}

// added
function item_close(){
	if (this.is_open){ 
		var object_idiv = get_element('i_div' + this.object_root.node_id + '_' + this.node_id);
		if (!object_idiv) return;
		
		if (!object_idiv.innerHTML) {
			var a_children = [];
			for (var i = 0; i < this.a_children.length; i++)
				a_children[i]= this.a_children[i].init();
			object_idiv.innerHTML = a_children.join('');
		}
		
		object_idiv.style.display = 'none';
		
		var object_iicon = document.images['i_img' + this.object_root.node_id + '_' + this.node_id];
		object_iicon.src = this.img_normal;
		
		this.b_opened = false;
		this.is_open  = false;

		// close parent, if open and if not root
		if (this.object_parent && this.object_parent.node_id != 0 && this.object_parent.is_open == true) this.object_root.close(this.object_parent.node_id);
				
	}else{
		// toggle image state
		var object_iicon = document.images['i_img' + this.object_root.node_id + '_' + this.node_id];
		object_iicon.src = this.img_normal;		
	}
}


function item_setmark(){
	var object_iicon = document.images['i_img' + this.object_root.node_id + '_' + this.node_id];
	if (object_iicon) {
		object_iicon.src = this.img_selected;
	}	
	
	this.item_reset();
}


function item_reset(){
	var object_oldclicked = this.object_root.clicked_object;
	this.object_root.clicked_object = this;
	
	if (object_oldclicked && object_oldclicked != this && object_oldclicked != this.object_parent){
		var object_oicon = document.images['i_img' + this.object_root.node_id + '_' + object_oldclicked.node_id];
		if (object_oicon) object_oicon.src = object_oldclicked.img_normal;	
	}
}


function item_over (b_deselect) {
	// always toggle back to the original image
	var object_iicon = document.images['i_img' + this.object_root.node_id + '_' + this.node_id];
	if (object_iicon) {
	  if (b_deselect == 'out') {
	    if (this.is_open || this.object_root.clicked_object == this) {
	    	object_iicon.src = this.img_selected;
	    }else{
	    	object_iicon.src = this.img_normal;
	    }
	  }else{
	    object_iicon.src = this.img_selected;
	  }
	}
	get_element('i_txt' + this.object_root.node_id + '_' + this.node_id).style.fontWeight = b_deselect ? 'normal' : 'bold';
	
	return Boolean(this.url);
}


function item_init () {
	var a_offset = [],
		object_current_item = this.object_parent;
	// get code depending on node type
	return this.get_node();
} 

function item_get_node(){
	switch (this.node_type){
		case 'chef':
		case 'standard':
			return '<table cellpadding="0" cellspacing="0" border="0"><tr><td nowrap>' 
				+ (this.url ? '<a href="' + this.url + '" target="' + this.item_target + '"  title="' + this.descr_title + '"' + (!this.b_opened || this.node_id == 0  ?  ' onclick="trees[' + this.object_root.node_id + '].toggle(' + this.node_id + '); this.blur()"' : ' onclick="trees[' + this.object_root.node_id + '].setmark(' + this.node_id + ')"; this.blur()' ) + '" onmouseover="trees[' + this.object_root.node_id + '].mover(' + this.node_id + ')" onmouseout="trees[' + this.object_root.node_id + '].mout(' + this.node_id + ')" id="i_txt' + this.object_root.node_id + '_' + this.node_id + '">' : '' )
				+ '<img src="' + (this.b_opened ? this.img_selected : this.img_normal) + '" border="0" align="absbottom" name="i_img' + this.object_root.node_id + '_' + this.node_id + '">'
				+ (this.url ? '</a>' : '' ) + '</td></tr></table>' + (this.a_children.length ? '<div id="i_div' + this.object_root.node_id + '_' + this.node_id + '" style="display:none"></div>' : '');
			break;
		case 'webcam':
			return '<table width="180" border="0" cellspacing="0" cellpadding="12"><tr><td background="images/menu/n_webcam_x_01.gif" align="left" valign="top">'
				+ (this.url ? '<a href="' + this.url + '" target="' + this.item_target + '"  title="' + this.descr_title + '" onClick="this.blur()">' : '')
				+ '<img src="' + this.img_normal + '" border="0">'
				+ (this.url ? '</a>' : '')
				+ '</td></tr></table>';
			break;
		}
}

function img_preload(all_images){
  var doc=document; if(doc.images){ if(!doc.image_preload) doc.image_preload=new Array();
    var i,j=doc.image_preload.length,a=img_preload.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ doc.image_preload[j]=new Image; doc.image_preload[j++].src=a[i];}}
}

function run_image_preload(){
	preload_string = all_images.join(",");
	img_preload(preload_string);
}


var trees = [];
get_element = document.all ?
	function (s_id) { return document.all[s_id] } :
	function (s_id) { return document.getElementById(s_id) };