var howMany = 5
var quote = new Array(howMany+1)
var quote1 = new Array(howMany+1)

quote[0]='http://www.estradasdeportugal.pt/trafego/get_image2.aspx?Camara=Sta-Iria&Bypasscache=67920'
quote[1]='http://www.estradasdeportugal.pt/trafego/get_image2.aspx?Camara=Vale-Figueira&Bypasscache=67920'
quote[2]='http://www.estradasdeportugal.pt/trafego/get_image2.aspx?Camara=Bobadela&Bypasscache=67920'
quote[3]='http://www.estradasdeportugal.pt/trafego/get_image2.aspx?Camara=Sacavem-1&Bypasscache=67920'
quote[4]='http://www.estradasdeportugal.pt/trafego/get_image2.aspx?Camara=Sacavem-2&Bypasscache=67920'
quote[5]='http://www.estradasdeportugal.pt/trafego/get_image2.aspx?Camara=Portela-1&Bypasscache=67920'

quote1[0]='Santa Iria da Azóia'
quote1[1]='Vale de Figueira'
quote1[2]='Bobadela'
quote1[3]='Sacavém'
quote1[4]='Sacavém'
quote1[5]='Ponte Vasco da Gama'


function abrir_janela_transito(endereco){
	window.open(endereco,"newWindow","toolbar=no,width=400,height=300,directories=no,status=no,scrollbars=no,resize=no,menubar=no");
}

function rndnumber(){
	var randscript = -1
	while (randscript < 0 || randscript > howMany || isNaN(randscript)){
		randscript = parseInt(Math.random()*(howMany+1))
	}
	return randscript
}

quo = rndnumber();
quox = quote[quo];