$(function() {
	$('a[rel="external"]').click(function () {
  		$(this).attr({'target':'_blank'});
	});
	
	$('a[rel="back"]').click(function () {
  		history.back();
		return false;
	});
	
	$('a.botoimprimir').click(function () {
  		window.print();
		return false;
	});
	
	var fotosHome = _backimg_array.length;
	var fotosInt = 4;
	var rndNumHome = Math.floor(Math.random() * fotosHome);
	var rndNumInt = Math.floor(Math.random() * fotosInt);
	$("#masthead").css("background-image","url(" + _backimg_array[rndNumHome]  + ")");
	$("#home #masthead").css("background-image","url(" + _backimg_array[rndNumHome]  + ")");
});