var _disable_empty_list = false;
var _hide_empty_list = false;

///// DynamicDrive.com added function /////////////
var onclickaction = "alert";

function goListGroup() {
    for (var i=arguments.length-1; i>=0; i--) {
	    if (arguments[i].selectedIndex != -1) {
			var selectedOptionvalue=arguments[i].options[arguments[i].selectedIndex].value
			if (selectedOptionvalue != "") {
				if (onclickaction == "alert") { alert(selectedOptionvalue); }
				else if (newwindow == 1) { window.open(selectedOptionvalue); }
				else { window.location=selectedOptionvalue; }
				break;
			}
		}
	}
}

///// END DynamicDrive.com added function//////

if (typeof(disable_empty_list) == "undefined") { disable_empty_list = _disable_empty_list; }

if (typeof(hide_empty_list) == "undefined") { hide_empty_list = _hide_empty_list; }

var cs_goodContent = true, cs_M = "M", cs_L = "L", cs_curTop = null, cs_curSub = null;

function cs_findOBJ(obj,n) {
	for (var i=0; i<obj.length; i++) {
		if (obj[i].name==n) { return obj[i]; }
	}
	return null;
}

function cs_findContent(n) { return cs_findOBJ(cs_content,n); }

function cs_findM(m,n) {
	if (m.name == n) { return m; }
	var sm = null;
	for (var i=0; i<m.items.length; i++) {
		if (m.items[i].type == cs_M) {
			sm = cs_findM(m.items[i],n);
			if (sm != null) { break; }
		}
	}
	return sm;
}
function cs_findMenu(n) { return (cs_curSub != null && cs_curSub.name == n)? cs_curSub : cs_findM(cs_curTop,n); }

function cs_contentOBJ(n,obj) { 
	this.name = n; 
	this.menu = obj; 
	this.lists = new Array(); 
	this.cookie = ""; 
}; 
cs_content = new Array();

function cs_topmenuOBJ(tm) {
	this.name = tm;
	this.items = new Array();
	this.df = 0;
	this.addM = cs_addM;
	this.addL = cs_addL;
}

function cs_submenuOBJ(dis,link,sub) {
	this.name = sub;
	this.type = cs_M; 
	this.dis = dis; 
	this.link = link; 
	this.df = 0;
	var x = cs_findMenu(sub);
	this.items = (x == null)? new Array() : x.items;
	this.addM = cs_addM;
	this.addL = cs_addL;
}

function cs_linkOBJ(dis,link) {
	this.type = cs_L;
	this.dis = dis;
	this.link = link;
}

function cs_addM(dis,link,sub) { this.items[this.items.length] = new cs_submenuOBJ(dis,link,sub); }

function cs_addL(dis,link) { this.items[this.items.length] = new cs_linkOBJ(dis,link); }

function cs_showMsg(msg) { window.status = msg; }

function cs_badContent(n) { 
	cs_goodContent = false;
	cs_showMsg("[" + n + "] Not Found."); 
}

function cs_optionOBJ(text,value) {
	this.text = text;
	this.value = value; 
}

function cs_emptyList(list) { 
    for (var i=list.options.length-1; i>=0; i--) { 
        list.options[i] = null; 
	} 
}

function cs_refreshList(list,opt,df) {
  cs_emptyList(list);
  for (var i=0; i<opt.length; i++) {
    list.options[i] = new Option(opt[i].text, opt[i].value);
  }
  if (opt.length > 0) { list.selectedIndex = df; }
}

function cs_getOptions(menu) {
	var opt = new Array();
	for (var i=0; i<menu.items.length; i++) {
		opt[i] = new cs_optionOBJ(menu.items[i].dis, menu.items[i].link);
	}
	return opt;
}

function cs_updateListGroup(content,idx,sidx,mode) {
    var i = 0, curItem = null, menu = content.menu;
    while (i < idx) { menu = menu.items[content.lists[i++].selectedIndex]; }
	if (menu.items[sidx].type == cs_M && idx < content.lists.length - 1) {
		var df=cs_getIdx(mode,content.cookie,(idx + 1),menu.items[sidx].df);
		cs_refreshList(content.lists[(idx + 1)], cs_getOptions(menu.items[sidx]), df);
		if (content.cookie) { cs_setCookie(content.cookie + "_" + (idx+1),df); }
		if ((idx + 1) < content.lists.length) {
			if (disable_empty_list) { content.lists[(idx + 1)].disabled = false; }
			if (hide_empty_list) { content.lists[(idx + 1)].style.display = ""; }
			cs_updateListGroup(content,(idx + 1),df,mode);
		}
	} else {
		for (var s = idx + 1; s < content.lists.length; s++) {
			cs_emptyList(content.lists[s]);
			if (disable_empty_list) { content.lists[s].disabled = true; }
			if (hide_empty_list) { content.lists[s].style.display = "none"; }
			if (content.cookie) { cs_setCookie(content.cookie + "_" + s,""); }
		}
	}
}

function cs_initListGroup(content,mode) {
	var df=cs_getIdx(mode,content.cookie,0,content.menu.df);
	cs_refreshList(content.lists[0], cs_getOptions(content.menu), df);
	if (content.cookie) { cs_setCookie(content.cookie + "_" + 0,df); }
	cs_updateListGroup(content,0,df,mode);
}

function cs_updateList() {
	var content=this.content;
	for (var i=0; i<content.lists.length; i++) {
		if (content.lists[i] == this) {
			if (content.cookie) { cs_setCookie(content.cookie + "_" + i,this.selectedIndex); }
			if (i < (content.lists.length - 1)) { cs_updateListGroup(content,i,this.selectedIndex,""); }
		}
	}
}

function cs_getIdx(mode,name,idx,df) {
	if (mode) {
		var cs_idx = cs_getCookie(name + "_" + idx);
		if (cs_idx != "") { df=parseInt(cs_idx); }
	}
	return df;
}

function _setCookie(name, value) { document.cookie = name + "=" + value; }

function cs_setCookie(name, value) { setTimeout("_setCookie('" + name + "','" + value + "')",0); }

function cs_getCookie(name) {
	var cookieRE = new RegExp(name+"=([^;]+)");
	if (document.cookie.search(cookieRE) != -1) { return RegExp.$1; }
	else { return ""; }
}

function addListGroup(n,tm) {
	if (cs_goodContent) {
		cs_curTop = new cs_topmenuOBJ(tm); 
		cs_curSub = null;
		var c = cs_findContent(n);
		if (c == null) { 
			cs_content[cs_content.length] = new cs_contentOBJ(n,cs_curTop); 
		} else { 
			delete(c.menu); 
			c.menu = cs_curTop; 
		}
    }
}

function addList(n,dis,link,sub,df) {
	if (cs_goodContent) {
		cs_curSub = cs_findMenu(n);
		if (cs_curSub != null) {
			cs_curSub.addM(dis,link||"",sub);
			if (typeof(df) != "undefined") { cs_curSub.df = cs_curSub.items.length - 1; }
		} else { cs_badContent(n); }
    }
}

function addOption(n,dis,link,df) {
	if (cs_goodContent) {
		cs_curSub = cs_findMenu(n);
		if (cs_curSub != null) {
			cs_curSub.addL(dis,link||"");
			if (typeof(df) != "undefined") { cs_curSub.df = cs_curSub.items.length - 1; }
		} else { cs_badContent(n); }
	}
}

function initListGroup(n) {
	var _content = cs_findContent(n), count = 0;
	if (_content != null) {
		content = new cs_contentOBJ("cs_" + n,_content.menu);
		cs_content[cs_content.length] = content;
		for (var i = 1; i < initListGroup.arguments.length; i++) {
			if (typeof(arguments[i]) == "object" && arguments[i].tagName && arguments[i].tagName == "SELECT") {
				content.lists[count] = arguments[i];
				arguments[i].onchange = cs_updateList;
				arguments[i].content = content; 
				arguments[i].idx = count++;
			} else if (typeof(arguments[i]) == "string" && /^[a-zA-Z_]\w*$/.test(arguments[i])) {
				content.cookie = arguments[i];
			}
		}
		if (content.lists.length > 0) { cs_initListGroup(content,content.cookie); }
	}
}

function resetListGroup(n) {
	var content = cs_findContent("cs_" + n);
	if (content != null && content.lists.length > 0) { cs_initListGroup(content,""); }
}