function calculaRuta(origen){
	if(origen == "") 
		alert("Por favor indica el origen de la ruta");
	else
		window.open('http://c1.cercalia.com/cercalia/ruta?cmd=route&fullsearch=0&lang=es&numcand_o=300&numcand_d=300&numcand_1=300&numcand_2=300&numcand_3=300&numcand_4=300&ctryc_o=ESP&stn_d=Poligono%20Industrial%20Cornicabral&stnum_d=25&ctn_d=Beas%20de%20Segura&ctryc_d=ESP&weight=time&ctn_o='+origen);
}

function asignarEstilo(){
	if(navigator.appName == "Netscape")
		document.write("<link rel='stylesheet' href='css/estilo_fx.css' type='text/css' />");
	else
		document.write("<link rel='stylesheet' href='css/estilo_ie.css' type='text/css' />");
}