////////////////////////////////////////////////////////////////////////////////////////////////////
//dd_h v2.0
//Author: Alexey V. Golovkov, golovkov@artics.ru, 2003
////////////////////////////////////////////////////////////////////////////////////////////////////

//dropdown objects array
var ddArr = new Array();

//check browser object
////////////////////////////////////////////////////////////////////////////////////////////////////
function b_check()
{
	this.app = navigator.userAgent.toLowerCase();
	this.ie = (this.app.indexOf("msie") > -1) ? true : false;
	this.opera = window.opera;
	this.moz = (!this.ie && document.getElementById) ? true : false;
	this.nn4 = (!this.nn6 && document.layers) ? true : false;
	return this;
}
//making check browser object
var bros = new b_check();
////////////////////////////////////////////////////////////////////////////////////////////////////

//creating virtual table of objects
////////////////////////////////////////////////////////////////////////////////////////////////////
//making virtual table of child objects
var vchild = new Object();
//making virtual table of parent objects
var vparent = new Object();
//making object of opened dropdowns
var opened = new Object();
////////////////////////////////////////////////////////////////////////////////////////////////////

//common global functions
////////////////////////////////////////////////////////////////////////////////////////////////////
//getting left coord
function getRelLeft(nnlwhich, lwhich, lmodifier)
{
	liw=lwhich;
	if (bros.nn4)
	{
		if(nnlwhich != "") return eval(document.layers[nnlwhich].document.layers[liw].pageX+lmodifier);
		else return eval(document.layers[liw].pageX+lmodifier);
	}
	if(bros.moz || bros.opera || bros.ie)
	{
		if(bros.ie) el = document.all[liw];
		else el = document.getElementById(liw);
		var t = el.offsetLeft;
		while (el.offsetParent != null)
		{
			t += el.offsetParent.offsetLeft;
			if (el.offsetParent.tagName == 'BODY') break;
			el = el.offsetParent;
		}
		return eval(t+lmodifier);
	}
}

//getting top coord
function getRelTop(nnrwhich, rwhich, rmodifier)
{
	riw=rwhich;
	if (bros.nn4)
	{
		if(nnrwhich != "") return eval(document.layers[nnrwhich].document.layers[riw].pageY+rmodifier);
		else return eval(document.layers[riw].pageY+rmodifier);
	}
	if(bros.moz || bros.opera || bros.ie)
	{
		if(bros.ie) el = document.all[riw];
		else  el = document.getElementById(riw);
		var t = el.offsetTop;
		while (el.offsetParent != null)
		{
			t += el.offsetParent.offsetTop;
			if (el.offsetParent.tagName == 'BODY') break;
			el = el.offsetParent;
		}
		return eval(t+rmodifier);
	}
}

//moveing item
function moveObj(item_id, item_top, item_left)
{
	if(bros.nn4)
	{
		document.layers[item_id].top  = item_top;
		document.layers[item_id].left  = item_left;
	}
	if(bros.moz || bros.opera)
	{
		document.getElementById(item_id).style.top = item_top;
		document.getElementById(item_id).style.left = item_left;
	}
	if(bros.ie)
	{
		document.all[item_id].style.top = item_top;
		document.all[item_id].style.left = item_left;
	}
}

//writing all dropdown divs
function init_dd()
{
	if(ddArr.length > 0)
	{
		alls = "";
		for(i=0; i<ddArr.length; i++)
		{
			rep_string = eval(ddArr[i]+".point_string");
			tpl_string = eval(ddArr[i]+".global_tpl");
			alls += fillTemplate(tpl_string, "%POINT_STRING%", rep_string);
		}
		document.write(alls);
	}
}

//get all parents
function getParents(obj_id, root_id)
{
	parents = new Array();
	pid = "";
	while(vparent[obj_id] && vparent[obj_id] != "")
	{
		pid = vparent[obj_id];
		if(pid != root_id) parents[parents.length] = vparent[pid];
		obj_id = vparent[pid];
	}
	return parents;
}

//get all childs
function getChilds(obj_id)
{
	childs = new Array();
	getL(obj_id);
	return childs;
}

//get child branching
function getL(obj_id)
{
	for(var pid in vparent)
	{
		if(vparent[pid] == obj_id)
		{
			if(vchild[pid]) getC(pid);
		}
	}
}

//addig childs
function getC(point_id)
{
	childs[childs.length] = vchild[point_id];
	getL(vchild[point_id]);
}

//showing child dropdown
function showChild(obj_id, point_id)
{
	hidePrevChild(point_id)
	if(vchild[point_id])
	{
		eval(vchild[point_id]+".show('"+obj_id+"')");
	}
}

//hiding child dropdown
function hideChild(point_id)
{
	if(vchild[point_id])
	{
		eval(vchild[point_id]+".hide_delayed(1)");
	}
}

//hiding previous opened trees
function hidePrevChild(point_id)
{
	is_glob = false;
	curr_root = eval(vparent[point_id]+".root");
	if(curr_root == "")
	{
		curr_root = point_id;
		for(var root in opened)
		{
			if(root != curr_root)
			{
				for(var c_obj in opened[root])
				{
					is_op = eval(opened[root][c_obj]);
					if(is_op) eval(c_obj+".hide()");
				}
			}
		}
	}
	else
	{
		for(var c_par in vparent)
		{
			if(vparent[c_par] == vparent[point_id])
			{
				if(vchild[c_par] && opened[curr_root][vchild[c_par]])
				{
					childArr = getChilds(vchild[c_par]);
					if(childArr.length > 0)
					{
						for(k=0; k<childArr.length; k++)
						{
							if(opened[curr_root][childArr[k]]) eval(childArr[k]+".hide()");
						}
					}
					eval(vchild[c_par]+".hide()");
				}
			}
		}
	}
}

//get points of one level
function getPoints(point_id)
{
	points = new Array();
	
	return points;
}

//fill template
function fillTemplate(tpl_string, pattern, rep_string)
{
	tpl = tpl_string.split(pattern);
	return tpl[0]+rep_string+tpl[1];
}
////////////////////////////////////////////////////////////////////////////////////////////////////

//root menu object
////////////////////////////////////////////////////////////////////////////////////////////////////
function DdMenu(id, point_width, global_template)
{
	this.id = id;
	this.root = "";
	this.dd_width = point_width;
	this.global_tpl = global_template;
	this.point_string = "";
	return this;
}

//adding points to root menu
DdMenu.prototype.add_point = function(point_id, point_title, point_link, point_target, point_class, point_template)
{
	point_link = (point_link != "") ? point_link : "javascript:void(null)";
	point_target = (point_target != "") ? " target=\""+point_target+"\"" : "";
	point_class =  (point_class != "") ? " class=\""+point_class+"\"" : "";
	if(bros.nn4)
	{
		div1 = "<td"+((this.dd_width != "") ? " width=\""+this.dd_width+"\"" : "")+"><ilayer name=\""+point_id+"\">";
		div2 = "</ilayer></td>";
		rep_string = div1+"<nobr><a href=\""+point_link+"\""+point_target+point_class+" onMouseOver=\"showChild('','"+point_id+"')\" onMouseOut=\"hideChild('"+point_id+"')\">"+point_title+"</a></nobr>"+div2;
	}
	else
	{
		div1 = "<td"+((this.dd_width != "") ? " width=\""+this.dd_width+"\"" : "")+" id=\""+point_id+"\" onMouseOver=\"showChild('','"+point_id+"')\" onMouseOut=\"hideChild('"+point_id+"')\">";
		div2 = "</td><td><img src=images/topnav-splitter.gif width=2 height=20>";
		rep_string = div1+"<nobr><a href=\""+point_link+"\""+point_target+point_class+">"+point_title+"</a></nobr>"+div2;
	}
	this.point_string += fillTemplate(point_template, "%LINK_STRING%", rep_string);
	vparent[point_id] = this.id;
	opened[point_id] = new Object();
}

//writing root menu
DdMenu.prototype.init = function()
{
	document.write(fillTemplate(this.global_tpl, "%POINT_STRING%", this.point_string));
}
////////////////////////////////////////////////////////////////////////////////////////////////////


//dropdown object
////////////////////////////////////////////////////////////////////////////////////////////////////
function dd(id, parent_id, parent_align, dd_width,  hide_delay, top_mod, left_mod, global_template)
{
	this.id = id;
	this.dd_id = "dd_"+this.id;
	r2 = eval(vparent[parent_id]+".root");
	if(r2 != "") this.root = r2;
	else this.root = parent_id;
	this.do_hide = true;
	this.parent_id = parent_id;
	this.parent_align = parent_align;
	this.dd_width = dd_width;
	this.hide_delay = hide_delay;
	this.top_mod = top_mod;
	this.left_mod = left_mod;
	this.global_tpl = global_template;
	this.point_string = "";
	this.timeout = null;
	ddArr[ddArr.length] = this.id;
	vchild[this.parent_id] = this.id;
	vparent[this.id] = this.parent_id;
	opened[this.root][this.id] = false;
	this.dd_parent = (this.parent_id != this.root) ? vparent[this.parent_id] : "";
	if(bros.nn4)
	{
		d1 = "<layer name=\""+this.dd_id+"\" top=\"-1000\" left=\"0\" width=\""+this.dd_width+"\" z-index=\""+(ddArr.length+2)+"\" onMouseOver=\""+this.id+".clear_tm()\" onMouseOut=\""+this.id+".unlock_dd() ;"+this.id+".hide_delayed(2)\">";
		d2 = "</layer>";
	}
	else
	{
		d1 = "<div id=\""+this.dd_id+"\" style=\"position:absolute; top:-1000;  left:0; width:"+this.dd_width+"; z-index:"+(ddArr.length+2)+";\" onMouseOver=\""+this.id+".clear_tm()\" onMouseOut=\""+this.id+".unlock_dd() ;"+this.id+".hide_delayed(2)\">";
		d2 = "</div>";
	}
	this.global_tpl = d1+this.global_tpl+d2;
	return this;
}

//adding dropdown point
dd.prototype.add_point = function(point_id, point_title, point_link, point_target, point_class, point_template)
{
	point_link = (point_link != "") ? point_link : "javascript:void(null)";
	point_target = (point_target != "") ? " target=\""+point_target+"\"" : "";
	point_class =  (point_class != "") ? " class=\""+point_class+"\"" : "";
	if(bros.nn4)
	{
		div1 = "<td><ilayer name=\""+point_id+"\">";
		div2 = "</ilayer></td>";
		rep_string = div1+"<nobr><a href=\""+point_link+"\""+point_target+point_class+" onMouseOver=\"showChild('"+this.id+"','"+point_id+"'); "+this.id+".clear_tm()\" onMouseOut=\"hideChild('"+point_id+"')\">"+point_title+"</nobr></a>"+div2;
	}
	else
	{
		div1 = "<td id=\""+point_id+"\" onMouseOver=\"showChild('"+this.id+"','"+point_id+"'); "+this.id+".clear_tm()\" onMouseOut=\"hideChild('"+point_id+"')\">";
		div2 = "</td>";
		rep_string = div1+"<nobr><a href=\""+point_link+"\""+point_target+point_class+">"+point_title+"</a></nobr>"+div2;
	}
	
	this.point_string += fillTemplate(point_template, "%LINK_STRING%", rep_string);
	vparent[point_id] = this.id;
}

//showing dropdown
dd.prototype.show = function(parent_obj)
{
	if(this.timeout) clearTimeout(this.timeout);
	if(!opened[this.root][this.id])
	{
		if(parent_obj != "") pobj = eval(parent_obj+".dd_id");
		else pobj = "";
		if(this.parent_align == "bottom")
		{
			top_pos = getRelTop(pobj, this.parent_id, this.top_mod);
			left_pos = getRelLeft(pobj, this.parent_id, this.left_mod);
		}
		else if(this.parent_align == "right")
		{
			wid = parseInt(eval(parent_obj+".dd_width"));
			top_pos = getRelTop(pobj, this.parent_id, this.top_mod);
			left_pos = getRelLeft(pobj, this.parent_id, this.left_mod) + wid;
		}
		else if(this.parent_align == "left")
		{
			top_pos = getRelTop(pobj, this.parent_id, this.top_mod);
			left_pos = parseInt(getRelLeft(pobj, this.parent_id, this.left_mod)) - this.dd_width;
		}
		moveObj(this.dd_id, top_pos, left_pos);
		opened[this.root][this.id] = true;
	}
}

//clearing timeout for avoiding delayed hide
dd.prototype.clear_tm = function()
{
	if(this.dd_parent != "") eval(this.dd_parent+".clear_tm()");
	clearTimeout(this.timeout);
	this.do_hide = false;
}

//unlocking dropdown for hiding
dd.prototype.unlock_dd = function()
{
	if(this.dd_parent != "") eval(this.dd_parent+".unlock_dd()");
	this.do_hide = true;
}

//hidiing all dropdown tree
dd.prototype.hide_tree = function()
{
	if(this.dd_parent != "")
	{
		eval(this.dd_parent+".hide_tree()");
	}
	if(opened[this.root][this.id] && this.do_hide)
	{
		moveObj(this.dd_id, "-1000", "0");
		opened[this.root][this.id] = false;
	}
}

//hiding current dropdown
dd.prototype.hide = function()
{
	if(opened[this.root][this.id] && this.do_hide)
	{
		moveObj(this.dd_id, "-1000", "0");
		opened[this.root][this.id] = false;
	}
}

//hiding ddropdown with some delay
dd.prototype.hide_delayed = function(h_flag)
{
	if(opened[this.root][this.id] && this.do_hide)
	{
		if(this.timeout) clearTimeout(this.timeout);
		if(h_flag != 1) this.timeout = setTimeout(this.id+".hide_tree()", this.hide_delay);
		else this.timeout = setTimeout(this.id+".hide()", this.hide_delay);
	}
}
////////////////////////////////////////////////////////////////////////////////////////////////////