function ventana(url,nombre,theWidth,theHeight){ 
       var theTop=(screen.height/2)-(theHeight/2); 
       var theLeft=(screen.width/2)-(theWidth/2); 
       var features="top=" + theTop + ",left=" + theLeft + ",width=" + theWidth + ",height=" + theHeight; 
       w = window.open(url,nombre,features); 
} 

document.write(" <select name='selectMundo' id='selectMundo' onChange='changeLink(this)' ><option selected>Selecione</option><option value='javascript:ventana(\"http://www.telefonica.com.br/popup/popup_alemanha.html\",\"Alemanha\",250,160);'>Alemanha </option><option value='http://www.telefonica.com.ar/'>Argentina</option><option value='http://www.telefonicachile.cl/'>Chile</option><option value='http://www.telefonica.com.co/'>Colômbia</option><option value='http://www.telefonica.com.ec/'>Equador</option><option value='http://www.telefonica.com.sv/'>El Salvador</option><option value='http://www.sk.o2.com/'>Eslováquia</option><option value='http://www.telefonica.es'>Espanha</option><option value='http://www.us.telefonica.com/'>Estados Unidos</option><option value='http://www.telefonica.com.gt/'>Guatemala</option><option value='http://www.o2online.ie/'>Irlanda</option><option value='http://www.telefonica.ma/'>Marrocos</option><option value='http://www.telefonica.com.mx/'>M&eacute;xico</option><option value='http://www.telefonica.com.ni/'>Nicarágua</option><option value='http://www.telefonica.com.pa/'>Panam&aacute;</option><option value='http://www.telefonica.com.pe/'>Peru</option><option value='http://www.tldpr.com/'>Porto Rico</option><option value='http://www.o2.co.uk/'>Reino Unido</option><option value='http://www.cz.o2.com/'>República Theca</option><option value='http://www.uy.telefonica.com/'>Uruguai</option><option value='http://www.ve.telefonica.com/'>Venezuela</option></select> ");

function changeLink(ref) {
  if (ref.options[ref.selectedIndex].value != ' ') {
		location.href = ref.options[ref.selectedIndex].value
		nPos = 0
  }
}

function abrepopup(theURL,winName,features) { 
  window.open(theURL,winName,features);
}

function verificaNavegador() {
    var bname;
    var bversion;
    var url;
    var janela = null;
    
    bname=navigator.appName;
    bversion=navigator.appVersion;
    bversion=parseFloat(navigator.appVersion);

	if (bname=="Netscape"){
	   document.getElementById("chamado").className = "chamadaFox";    
	}else if (bname=="Microsoft Internet Explorer"){
	   	document.getElementById("chamado").className = "chamadaIE";
	}
}