//Copyright 2008 www.liteweb.info
//version 1.1, stand alone
//please keep this note :)

var liteweb_Accordian = 
{
	debug: false,
	S: 5, //speed lower is faster
	T: 15, //refresh rate milli seconds
	selectedClass: "head-selected", // selected class
	selectedItem: "",
	ac: {}, //list of accordians
	$: function (d){
		return document.getElementById(d);
	},
	dsp: function(d,v){
		if(!v)
			return d.style.display;
		else
			d.style.display = v;
	},
	sh: function(d,v){
		var _ = liteweb_Accordian;
		if(!v)
		{
			if(_.dsp(d) != "none" && "" != _.dsp(d))
				return d.offsetHeight;
			viz = d.style.visibility;
			d.style.visibility = 'hidden';
			o = _.dsp(d);
			_.dsp(d, "block");
			r = parseInt(d.offsetHeight);
			_.dsp(d, o);
			d.style.visibility = viz;
			return r;
		}
		else
			d.style.height=v;
	},
	ct: function ct(d){
		var _ = liteweb_Accordian;
		d = _.$(d);
		if(_.sh(d) > 0){
			v = Math.round(_.sh(d)/d.s);
			v = v < 1? 1: v;
			v = _.sh(d) - v;
			_.sh(d, v+'px');
			d.style.opacity = v / d.maxh;
			d.style.filter= "alpha(opacity=" + (v*100 / d.maxh)+");";
		}
		else {
			_.sh(d,0);
			_.dsp(d, "none");
			clearInterval(d.t);
		}
	},
	et: function(d){
		var _ = liteweb_Accordian;
		d = _.$(d);
		if(_.sh(d) < d.maxh){
			v = Math.round((d.maxh - _.sh(d)) / d.s);
			v = v < 1? 1: v;
			v = _.sh(d) + v;
			_.sh(d, v + "px");
			d.style.opacity = v / d.maxh;
			d.style.filter= "alpha(opacity=" + (v*100/d.maxh) + ");";
		}
		else{
			_.sh(d, d.maxh);
			clearInterval(d.t);
		}
	},
	cl: function (d){
		var _ = liteweb_Accordian;
		if(_.dsp(d) == "block" || _.dsp(d) == ""){
			clearInterval(d.t);
			d.t = setInterval('liteweb_Accordian.ct("'+ d.id+ '")', _.T);
		}
	},
	ex: function (d){
		var _ = liteweb_Accordian;
		if(_.dsp(d) == "none"){
			_.dsp(d, "block");
			d.style.height = "0px";
			clearInterval(d.t);
			d.t = setInterval('liteweb_Accordian.et("'+ d.id +'")', _.T);
		}
	},
	cc: function(n, v){
		if(n.tc)
			n.className = n.className.replace(new RegExp(" " + n.tc + "+"), "");
	},
	hc: function()
	{
		var _ = liteweb_Accordian;
		for( i = 0; i< this.c.length; i++){
			cn = this.c[i];
			n = cn.substr(0, cn.indexOf('-'));
			if((n + "-header") == this.id){
				_.ex(_.$(n + "-content"));
				n= _.$(n + "-header");
				_.cc(n, '__');
				n.className = n.className + " " + n.tc;
			} else {
				_.cl(_.$(n + "-content"));
				_.cc(_.$(n + "-header"), "");
			}
		}
	},
	add: function(container, classSelected){
		var _ = liteweb_Accordian;
		if(_.ac[container])
		{
			if(_.debug)
				alert("Accordian already exist");
			return;
		}
		_.ac[container] = {
			"c": container,
			"cs": classSelected
		};

		l = _.$(container).getElementsByTagName('div');
		c = [];
		for(i=0; i < l.length; i++){
			h = l[i].id;
			if(h.substr(h.indexOf('-') + 1, h.length) == "content")
				c.push(h);
		}
		sel = null;
		for(i=0; i < l.length; i++){
			h = l[i].id;
			if(h.substr(h.indexOf('-') + 1, h.length) == "header"){
				var Selected = false;
				var _h = _.$(h);
			
				if(_.selectedClass)
				{
					var r = new RegExp(_.selectedClass + "+");
					Selected = _h.className.match(r) != undefined;
				}
				Selected = Selected || _.selectedItem? _.selectedItem + "-header" == _h.id : false;
				if(Selected)
				{
					sel = _h;
				}
				d = _.$(h.substr(0, h.indexOf('-')) + "-content");
				d.style.display = Selected? "block": "none";
				//d.style.overflow = "hidden";
				d.maxh = _.sh(d);
				d.s = _.S? _.S: 7;
				_h.tc = classSelected;
				_h.c = c;
				_h.onclick = _.hc;
				_h.ac = _.ac[container];
			}
		}
		/*
		if(sel)
		{
			try
			{
				sel.click();
			}
			catch(e)
			{
			}
		}
		*/
	}
}