// JavaScript Document

//Attitude by Valerio Proietti (http://mad4milk.net) BSD license.

//v 0.5 beta



var Attitude = {

	getSelector: function(selector){

		var args = selector.split(' ');

		var params = [];

		for (var j=0; arg=args[j]; j++) {

			params[j] = param = [];

			if (args[j].indexOf('#') > -1) {

				var bits = arg.split('#');

				param['tag'] = bits[0] || '*';

				param['id'] = bits[1];

			}

			else if (args[j].indexOf('.') > -1) {

				var bits = arg.split('.');

				param['tag'] = bits[0] || '*';

				param['class'] = bits[1];

			}

			else {

				param['tag'] = arg;

			}

		}

		this.filter = [document];

		for (var k=0; param=params[k] ;k++){

			if (k == 0 && param['id']) {

				var id = document.getElementById(param['id']);

				if (param['tag'] == '*' || id.tagName.toLowerCase() == param['tag'])

					this.filter = [id];

				else return [];

				continue;

			}

			this.filter = this._getElementsWithTagName(param['tag']);

			if (param['class']) this.filter = this._getElementsWithClassName(param['class']);

			else if (param['id']) this.filter = this._getElementsWithId(param['id']);

		}

		return this.filter;

	},



	sheets: [],



	append: function(sheet){

		this.sheets.push(sheet);

	},



	start: function(){

		for (var i=0; sheet=this.sheets[i]; i++) this.update(sheet);

	},



	update: function(sheet){ //based on Behaviour by Ben Nolan (http://bennolan.com/behaviour/)

		for (selector in sheet){

			var combs = selector.split(',');

			for (c=0; comb=combs[c]; c++) {

				var elements = Attitude.getSelector(comb.replace(/^\s*|\s*$/g,"")) || null;

				for (var i=0; element=elements[i]; i++) sheet[selector](element);

			}

		}

	},



	_getElementsWithId: function(id){

		var found = [];

		for (var i = 0; el=this.filter[i]; i++) {

			if (el.id == id) found.push(el);

		}

		return found;

	},



	_getElementsWithClassName: function(className){

		var found = [];

		for (var i = 0; el=this.filter[i]; i++) {

			var a = el.className.split(' ');

			for (var h=0; b=a[h]; h++) { if (b == className) found.push(el);}

		}

		return found;

	},



	_getElementsWithTagName: function(tagName){

		var found = [];

		for (var i=0; el=this.filter[i]; i++){

			var tagNames = el.getElementsByTagName(tagName);

			for (var j=0; taag=tagNames[j]; j++) found.push(taag);

		}

		return found;

	}

};



function $S() {

	if (arguments.length == 1){

		if(typeof arguments[0] == 'string') {

			if (arguments[0].charAt(0) == '#' && arguments[0].indexOf(' ') == -1) return document.getElementById(arguments[0].slice(1)) || null;

			return Attitude.getSelector(arguments[0]);

		}

		else return arguments[0];

	}

	var elements = [];

	for (var i=0; sel=arguments[i]; i++){

		if (typeof sel == 'string') {

			var lel = Attitude.getSelector(sel);

			for (h=0;el=lel[h];h++) elements.push(el);

		}

		else elements.push(sel);

	}

	return elements;

}



Array.prototype.action = function(actions){

	for(var i=0;el=this[i];i++){

		if (actions.initialize) actions.initialize(el);

		for(action in actions){

			if (action.slice(0,2) == 'on') el[action] = actions[action];

		}

	}

};