function SDMenu(id) {
	if (!document.getElementById || !document.getElementsByTagName)
		return false;
	this.menu = document.getElementById(id);
	this.submenus = this.menu.getElementsByTagName("div");
	this.remember = true;
	this.speed = 3;
	this.markCurrent = true;
	this.oneSmOnly = true;
}
SDMenu.prototype.init = function() {
	var mainInstance = this;
	for (var i = 0; i < this.submenus.length; i++)
	{
		var span = this.submenus[i].getElementsByTagName("span")[0];
		var links = span.getElementsByTagName("a");
		if (links[0] != null)
		{	
			links[0].onclick = function() {
			    return false;
			};
		}

		span.onclick = function() {
		    //debugger;
			mainInstance.toggleMenu(this.parentNode);
		};
	}
	if (this.markCurrent) {
		var links = this.menu.getElementsByTagName("a");
		for (var i = 0; i < links.length; i++)
			if (links[i].href == document.location.href) {
				links[i].className = "current";
				break;
			}
	}
	if (this.remember) {
		var regex = new RegExp("sdmenu_" + encodeURIComponent(this.menu.id) + "=([01]+)");
		var match = regex.exec(document.cookie);
		if (match) {
			var states = match[1].split("");
			for (var i = 0; i < states.length; i++)
				this.submenus[i].className = (states[i] == 0 ? "collapsed" : "");
		}
	}
};
SDMenu.prototype.toggleMenu = function(submenu) {
	if (submenu.className == "collapsed")
	{
		this.expandMenu(submenu);
        var span = submenu.getElementsByTagName("span")[0];
	    var spanlinks = span.getElementsByTagName("a");
	    var spantarget = null;
	    if (spanlinks[0] != null)
	    {
	        spantarget = spanlinks[0].href;
	        if (document.location != spantarget)
	            document.location = spantarget;
	    }
	}
	else
		this.collapseMenu(submenu);
};
SDMenu.prototype.expandMenu = function(submenu) {
	
	submenu.style.height = "";
	submenu.className = "";
	this.memorize();
	this.collapseOthers(submenu);
};
SDMenu.prototype.collapseMenu = function(submenu) {
    submenu.style.height = "";
	submenu.className = "collapsed";
	this.memorize();
};
SDMenu.prototype.collapseOthers = function(submenu) {
	if (this.oneSmOnly) {
		for (var i = 0; i < this.submenus.length; i++)
			if (this.submenus[i] != submenu && this.submenus[i].className != "collapsed")
				this.collapseMenu(this.submenus[i]);
	}
};
SDMenu.prototype.expandAll = function() {
	var oldOneSmOnly = this.oneSmOnly;
	this.oneSmOnly = false;
	for (var i = 0; i < this.submenus.length; i++)
		if (this.submenus[i].className == "collapsed")
			this.expandMenu(this.submenus[i]);
	this.oneSmOnly = oldOneSmOnly;
};
SDMenu.prototype.collapseAll = function() {
	for (var i = 0; i < this.submenus.length; i++)
		if (this.submenus[i].className != "collapsed")
			this.collapseMenu(this.submenus[i]);
};
SDMenu.prototype.memorize = function() {
	if (this.remember) {
		var states = new Array();
		for (var i = 0; i < this.submenus.length; i++)
			states.push(this.submenus[i].className == "collapsed" ? 0 : 1);
		var d = new Date();
		d.setTime(d.getTime() + (30 * 24 * 60 * 60 * 1000));
		document.cookie = "sdmenu_" + encodeURIComponent(this.menu.id) + "=" + states.join("") + "; expires=" + d.toGMTString() + "; path=/";
	}
};

SDMenu.prototype.selectItem = function(item) {
 var links = this.menu.getElementsByTagName("a");
 for (var i = 0; i < links.length; i++)
  if (links[i].firstChild.nodeValue == item) {
   links[i].className = "current";
   break;
  }
};