String.prototype.trim = function()
{
	return this.replace(/^[\s( )]+/g,'').replace(/[\s( )]+$/g,'');
};

String.prototype.startsWith = function ( s )
{
	return this.indexOf(s) == 0;
};

Array.prototype.inArray = function ( search_phrase )
{
	for( var i = 0; i < this.length; i++ )
	{
		if( search_phrase == this[i] )
		{
			return true;
		}
	}
	return false;
};

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;
}

function addLoadEvent(func)
{
	var oldonload = window.onload;
	if (typeof window.onload != 'function') {
		window.onload = func;
	}
	else {
		window.onload = function() {
			oldonload();
			func();
		}
	}
}

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;
	}
}