function SDMenu(id) {
	if (!document.getElementById || !document.getElementsByTagName)
		return false;
	this.menu = document.getElementById(id);
	this.submenus = $('.firstcat');
	this.submenus2=$('.seccat');

	this.remember = true;
	this.speed = 3;
	this.markCurrent = true;
	this.oneSmOnly = true;
}
SDMenu.prototype.init = function() {

	curme=this;
	var mainInstance = this;
	for (var i = 0; i < this.submenus.length; i++)
		this.submenus[i].getElementsByTagName("span")[0].onclick = function() {
			mainInstance.toggleMenu(1,this.parentNode);
		};
   for (var i = 0; i < this.submenus2.length; i++) {

   	if (this.submenus2[i].getElementsByTagName("span")[0]) {
   		this.submenus2[i].getElementsByTagName("span")[0].onclick = function(){
   			mainInstance.toggleMenu(2, this.parentNode);
   		};
   	}
   }



};
SDMenu.prototype.toggleMenu = function(cat,submenu) {

	if (hassdclass(submenu,"collapsed")){

		this.expandMenu(cat,submenu);
	}
	else{

		this.collapseMenu(cat,submenu);

	}
};
SDMenu.prototype.expandMenu = function(cat,submenu) {
	var fullHeight;
	if(submenu.getElementsByTagName("span")){
		 fullHeight = submenu.getElementsByTagName("span")[0].offsetHeight;
	}

	var eleoff=cat==1?"div":"a";
	var links = submenu.getElementsByTagName(eleoff);

	for (var i = 0; i < links.length; i++)
		fullHeight += links[i].offsetHeight;
	var moveBy = Math.round(this.speed * links.length);

	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 = "";
			removesdclass(submenu, "collapsed");
			//submenu.className = "";
			mainInstance.memorize();
		}
	}, 30);
	this.collapseOthers(cat,submenu);
};
SDMenu.prototype.collapseMenu = function(cat,submenu) {

	var minHeight;
	if(submenu.getElementsByTagName("span")[0]){
		minHeight=submenu.getElementsByTagName("span")[0].offsetHeight;
	}


	var eleoff2=cat==1?"div":"a";
	var moveBy = Math.round(this.speed * submenu.getElementsByTagName(eleoff2).length);
	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 = "";
			addsdclass(submenu, "collapsed");
			//submenu.className = "collapsed";
			mainInstance.memorize();
		}
	}, 30);
};
SDMenu.prototype.collapseOthers = function(cat,submenu) {
	var thecat=(cat==1?this.submenus:this.submenus2);

	if (this.oneSmOnly) {
		for (var i = 0; i < thecat.length; i++)
			if (thecat[i] != submenu && !hassdclass(thecat[i],"collapsed"))
				this.collapseMenu(cat,thecat[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=/";
	}


};

 function hassdclass(submenuclass,mclassname) {
	var reg = new RegExp('(\\s|^)'+mclassname+'(\\s|$)');

	return submenuclass.className.match(reg);
}
 function addsdclass(submenuclass,mclassname) {

	if (!this.hassdclass(submenuclass, mclassname))
	{
		submenuclass.className += " "+mclassname;
	}
}
 function removesdclass(submenuclass,mclassname) {
	if (this.hassdclass(submenuclass, mclassname)) {
	var reg = new RegExp('(\\s|^)'+mclassname+'(\\s|$)');
	submenuclass.className = submenuclass.className.replace(reg,' ');
	}

}