function $(id) { return document.getElementById(id); }
function ct(t) { return document.createTextNode(t); }

function ce(e) 
{
	if(typeof(e) == 'string')
		e = document.createElement(e);
	
	e.ac = function(c) { e.appendChild(c); return e; };
	e.at = function(t) { e.ac(document.createTextNode(t)); return e; };
	e.ia = function(n, o) { e.insertBefore(n, o.nextSibline); return e; };
	e.ib = function(n, o) { e.insertBefore(n, o); return e; };
	e.rs = function() { e.parentNode.removeChild(e); return e; };
	e.rw = function(c) { e.parentNode.replaceChild(c, e); return e; };
	e.cl = function() { while(e.lastChild) e.removeChild(e.lastChild); return e; };
	
	e.sp = function(k, v, f) { /* if(!f && e[k] === undefined) document.body.appendChild(document.createTextNode('Error, setting invalid property: '+k)); */ e[k] = v; return e; };
	e.st = function(k, v) { e.style[k.replace(/\-(\w)/, function(_, s) { return s.toUpperCase(); })] = v; return e; };
	
	e.printR = function(v) { printR(v, e); };
	e.dump = function(d) { printR(e, d); };
	return e;
}

function printR(obj, dest)
{
	if((obj instanceof Object) && !(obj instanceof Function) || (obj instanceof Array))
	{
		var e = ce('dl');
		for(var key in obj)
		{
			var c = obj[key];
			if((c instanceof Object) || (c instanceof Array))
			{
				var dd = ce('dd');
				e.ac(ce('dt').ac(ce('a')
					.at(key)
					.sp('href', 'javascript:;')
					.sp('dd', dd)
					.sp('c', c)
					.sp('onclick', function() { if(this.dd.firstChild) this.dd.cl(); else printR(this.c, this.dd); }))
				).ac(dd);
			}
			else e.ac(ce('dt').at(key)).ac(ce('dd').at(c));
		}
	}
	else var e = ct(obj);
	
	(dest ? dest : document.body).appendChild(e);
};

function getElementsByClassName(oElm, strTagName, strClassName)
{
	var arrElements = (strTagName == "*" && oElm.all) ? oElm.all : oElm.getElementsByTagName(strTagName);
	var arrReturnElements = [];
	strClassName = strClassName.replace(/\-/g, "\\-");
	var oRegExp = new RegExp("(^|\\s)" + strClassName + "(\\s|$)");
	var oElement;
	for(var i = 0; i < arrElements.length; i++)
	{
		oElement = arrElements[i];
		if(oRegExp.test(oElement.className))
			arrReturnElements.push(oElement);
	}
	return arrReturnElements;
}