// Biblioteca de funções básicas usadas em várias partes do site


//This prototype is provided by the Mozilla foundation and
//is distributed under the MIT license.
//http://www.ibiblio.org/pub/Linux/LICENSES/mit.license

if (!Array.prototype.indexOf){
	Array.prototype.indexOf = function(elt /*, from*/){
		var len = this.length;
		var from = Number(arguments[1]) || 0;
		from = (from < 0)
			? Math.ceil(from)
			: Math.floor(from);
		if (from < 0)
			from += len;
		for (; from < len; from++){
			if (from in this && this[from] === elt)
				return from;
		}
		return -1;
	};
}

/* Carregar mais de uma função no carregamento de uma página. */
function addOnloadEvent(fnc){
	if ( typeof window.addEventListener != "undefined" )
		window.addEventListener( "load", fnc, false );
	else if ( typeof window.attachEvent != "undefined" ) {
		window.attachEvent( "onload", fnc );
	} else {
		if ( window.onload != null ) {
			var oldOnload = window.onload;
			window.onload = function ( e ) {
				oldOnload( e );
				window[fnc]();
			};
		} else 
		window.onload = fnc;
	}
}