common js functions. Based on: www.dustindiaz.com

common.js

function addEvent(elm, evType, fn, useCapture) {

  if (elm.addEventListener) { 

	elm.addEventListener(evType, fn, useCapture); 

	return true; 

	}

	else if (elm.attachEvent) { 

	var r = elm.attachEvent('on' + evType, fn); 

	return r; 

	}

	else {

	elm['on' + evType] = fn;

	}

}

function addLoadEvent(func) {

	var oldonload = window.onload;

	if (typeof window.onload != 'function') {

	window.onload = func;

	}

	else {

		window.onload = function() {

		oldonload();

		func();

		}

	}

}

//ASSIGNING MULTIPLE LOAD EVENTS TO WINDOW
/*
addEvent(window,'load',func1,false);

addEvent(window,'load',func2,false);

addEvent(window,'load',func3,false);
*/

function getElementsByClass(searchClass,node,tag) {

	var classElements = new Array();

	if ( node == null )

		node = document;

	if ( tag == null )

		tag = '*';

	var els = node.getElementsByTagName(tag);

	var elsLen = els.length;

	var pattern = new RegExp('(^|\\\\s)'+searchClass+'(\\\\s|$)');

	for (i = 0, j = 0; i < elsLen; i++) {

		if ( pattern.test(els[i].className) ) {

			classElements[j] = els[i];

			j++;

		}

	}

	return classElements;

}

function toggle(obj) {

	var el = document.getElementById(obj);

	if ( el.style.display != 'none' ) {

		el.style.display = 'none';

	}

	else {

		el.style.display = '';

	}

}

//INSERTAFTER() ON PUBLIC DOMAIN
function insertAfter(parent, node, referenceNode) {

	parent.insertBefore(node, referenceNode.nextSibling);

}

//InArray
Array.prototype.inArray = function (value) {

	var i;

	for (i=0; i < this.length; i++) {

		if (this[i] === value) {

			return true;

		}

	}

	return false;

};

//Capitalizer
function capFirst(string) {
    return string.charAt(0).toUpperCase() + string.slice(1);
}


//cookies
function getCookie( name ) {	

	var start = document.cookie.indexOf( name + "=" );

	var len = start + name.length + 1;

	if ( ( !start ) && ( name != document.cookie.substring( 0, name.length ) ) ) {

		return null;

	}

	if ( start == -1 ) return null;

	var end = document.cookie.indexOf( ';', len );

	if ( end == -1 ) end = document.cookie.length;

	return unescape( document.cookie.substring( len, end ) );

}



function setCookie( name, value, expires, path, domain, secure ) {

	var today = new Date();

	today.setTime( today.getTime() );

	if ( expires ) {

		expires = expires * 1000 * 60 * 60 * 24;

	}

	var expires_date = new Date( today.getTime() + (expires) );

	document.cookie = name+'='+escape( value ) +

		( ( expires ) ? ';expires='+expires_date.toGMTString() : '' ) + //expires.toGMTString()

		( ( path ) ? ';path=' + path : '' ) + 

		( ( domain ) ? ';domain=' + domain : '' ) +

		( ( secure ) ? ';secure' : '' );

}



function deleteCookie( name, path, domain ) {

	if ( getCookie( name ) ) document.cookie = name + '=' +

			( ( path ) ? ';path=' + path : '') +

			( ( domain ) ? ';domain=' + domain : '' ) +

			';expires=Thu, 01-Jan-1970 00:00:01 GMT';

}

//PROTOTYPE FUNCTION $
/*
var obj1 = document.getElementById('element1');

var obj2 = document.getElementById('element2');

function alertElements() {

  var i;

  var elements = $('a','b','c',obj1,obj2,'d','e');

  for ( i=0;i
*/
function $() {

	var elements = new Array();

	for (var i = 0; i < arguments.length; i++) {

		var element = arguments[i];

		if (typeof element == 'string')

			element = document.getElementById(element);

		if (arguments.length == 1)

			return element;

		elements.push(element);

	}

	return elements;

}