/**
 * Accordion Class
 * 
 * @author G.S.Navin Raj Kumar http://dezinerfolio.com (initial developper)
 * @author Fabian Kunz, http://www.fadth-design.ch (improvements and simplifications)
 * 
 * @param {String}	id ID of the container node
 * @param {Int}		speed animation speed; 0 turns off animation
 * @param {String}	css  CSS-class to highlight the active header.
 * 						Assign class "selected" to the header that should be initially opened
 * @param {bool}		ah true: animate height
 * @param {bool}		ao true: animate opacity
 */

Accordion=function(id,speed,css,ah,ao){
	var $=function(d){
		return document.getElementById(d);
	};
	var _cc=function(d,v){
		var s=d.className.split(/\s+/);
		
		for(var i=0;i<s.length;i++){
			if(s[i]==v){s.splice(i,1);d.className=s.join(' ');
			return;
		}
	}
};

var _int=function(){
	_v-=_v/_s;
	if(_v<0.001){
		_v=0;clearInterval(_hnd);
	}
	_set(_e,1-_v);
	_set(_c,_v);
};

var _click=function(){
	if(_curr==this)return;
	_last=_curr;
	_curr=this;
	_cc(_last,_css);
	_curr.className+=' '+_css;
	_e=_curr.content;
	_c=_last.content;
	_e.style.zIndex=9999;
	_c.style.zIndex=0;
	if(!_s){
		_set(_e,1);
		_set(_c,0);
		return;
	}
	_v=1;clearInterval(_hnd);
	_hnd=setInterval(_int,10);
};

var _curr={
	className:"",content:{
		style:{}
	}
};

var _last;
var _css=css;
var _s=speed;
var _hnd;
var _c,_e;
var _v;
var node=$(id);
node.style.display="block";
var arr=node.getElementsByTagName('div');
var coll=[];
ah=ah==undefined?true:ah;
ao=ao==undefined?true:ao;
var _set="_set = function(d, v) {";
if(ah)_set+="d.style.height = (d, Math.round(v * d.maxh)) + 'px';";
if(ao)_set+=arr[0].style.opacity==undefined?"d.style.filter = 'alpha(opacity=' + (v * 100) + ')';":"d.style.opacity = v;";
eval(_set+"}");
var pos;
for(var i=0;i<arr.length;i++){
	id=arr[i].id;pos=id.indexOf('-header');
	if(pos>-1)coll.push(id.substr(0,pos));
}
var h,c,sel;
if(sel!=undefined){
	_s=0;
	sel.onclick();
	_s=speed;
}
};
// JavaScript Document