function SDMenu(menuid, slides_obj)
{
	if (!document.getElementById || !document.getElementsByTagName)
		return false;
	this.menu = document.getElementById(menuid);
	/*
	this.submenus_all = this.menu.getElementsByTagName("div");
	this.submenus = new Array();
	var ind_s = 0;
	for(var i = 0; i < this.submenus_all.length; i++)
	{
		if( (this.submenus_all[i].className == "expanded") || (this.submenus_all[i].className == "collapsed") )
		{
			this.submenus[ind_s++] = this.submenus_all[i];
		}
	}
	*/
	this.submenus = slides_obj;

	this.remember = true;
	this.speed = 14;
	this.markCurrent = true;
	this.oneSmOnly = false;
}
SDMenu.prototype.init = function() {
	var mainInstance = this;
	for (var i = 0; i < this.submenus.length; i++)
	{
		//this.submenus[i].getElementsByTagName("span")[0].onclick = function() {
		//this.submenus[i].getElementById(this.submenus[i].id + "_but").onclick = function() {
		document.getElementById(this.submenus[i].id + "_but").onclick = function() {

		//this.submenus[i].childNodes[0].onclick = function() {
			//alert('!!!');

			// new
			mainInstance.collapseAll();
			//mainInstance.expandMenu(this.parentNode);

			mainInstance.toggleMenu(this.parentNode);
		};
	}
	//if (this.markCurrent) {
		//var links = this.menu.getElementsByTagName("p");
	/*
		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 ? "sdcollapsed" : "sdexpanded");
//		}
//	}
};
SDMenu.prototype.toggleMenu = function(submenu) {
	if (submenu.className == "sdcollapsed")
		this.expandMenu(submenu);
	else
		this.collapseMenu(submenu);
};
SDMenu.prototype.expandMenu = function(submenu) {
	//var fullHeight = submenu.getElementsByTagName("span")[0].offsetHeight;
	//var fullHeight = submenu.getElementById(submenu + "_but").offsetHeight;
	var fullHeight = document.getElementById(submenu.id + "_but").offsetHeight;
	//var fullHeight = submenu.childNodes[0].offsetHeight;
	//var links = submenu.getElementsByTagName("a");
	//var links = submenu.getElementsByTagName("p");
	//for (var i = 0; i < links.length; i++)
	//	fullHeight += links[i].offsetHeight;
	//var contentBar = submenu.getElementsByTagName("p");
	//var contentBar = submenu.getElementById(submenu + "_data");
	var contentBar = document.getElementById(submenu.id + "_data");
	//var contentBar = submenu.childNodes[1];
	fullHeight += contentBar.offsetHeight;

	//var moveBy = Math.round(this.speed * links.length);
	var moveBy = this.speed;

	var mainInstance = this;
	var intId = setInterval(function() {
		var curHeight = submenu.offsetHeight;
		var newHeight = curHeight + moveBy;
		if (newHeight < fullHeight)
			submenu.style.height = newHeight + "px";
		else {
			clearInterval(intId);
			submenu.style.height = "";
			submenu.className = "sdexpanded";
			//mainInstance.memorize();
		}
	}, 30);
	this.collapseOthers(submenu);
};
SDMenu.prototype.collapseMenu = function(submenu) {
	//var minHeight = submenu.getElementsByTagName("span")[0].offsetHeight;
	//var minHeight = submenu.getElementById(submenu + "_but").offsetHeight;
	var minHeight = document.getElementById(submenu.id + "_but").offsetHeight;
	//var minHeight = submenu.childNodes[0].offsetHeight;
	//var moveBy = Math.round(this.speed * submenu.getElementsByTagName("a").length);
	//var moveBy = Math.round(this.speed * submenu.getElementsByTagName("p").length);
	var moveBy = this.speed;
	var mainInstance = this;
	var intId = setInterval(function() {
		var curHeight = submenu.offsetHeight;
		var newHeight = curHeight - moveBy;
		if (newHeight > minHeight)
			submenu.style.height = newHeight + "px";
		else {
			clearInterval(intId);
			submenu.style.height = "";
			submenu.className = "sdcollapsed";
			//mainInstance.memorize();
		}
	}, 30);
};
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 != "sdcollapsed")
				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 == "sdcollapsed")
			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 != "sdcollapsed")
			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 == "sdcollapsed" ? 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=/";
	}
};