//funcoes para manipulacao de cookie

//funcoes bluebus
function setCookiePosition(nome, novo_valor) {
   var largeExpDate = new Date ();

   var pathname = location.pathname;
   var dominio = pathname.substring(0,pathname.lastIndexOf('/')) +'/';
   largeExpDate.setTime(largeExpDate.getTime() + (24 * 3600 * 7));
   SetCookie(nome, novo_valor, largeExpDate, dominio);
}

//funcoes de controle

//usada em GetCookie para retornar o valor do cookie
 function getCookieVal (offset) {
	 var endstr = document.cookie.indexOf (";", offset);
	 if (endstr == -1)
	 endstr = document.cookie.length;
	 return unescape(document.cookie.substring(offset, endstr));
 }

//retorna o valor do cookie
 function GetCookie (name) {
	 var arg = name + "=";
	 var alen = arg.length;
	 var clen = document.cookie.length;
	 var i = 0;
	 while (i < clen) {
		 var j = i + alen;
		 if (document.cookie.substring(i, j) == arg)
		 return getCookieVal (j);
		 i = document.cookie.indexOf(" ", i) + 1;
		 if (i == 0)
		 break;
	 }
	 return null;
 }
 function SetCookie (name, value) {
	 var argv = SetCookie.arguments;
	 var argc = SetCookie.arguments.length;
	 var expires = (argc > 2) ? argv[2] : null;
	 var path = (argc > 3) ? argv[3] : null;
	 var domain = (argc > 4) ? argv[4] : null;
	 var secure = (argc > 5) ? argv[5] : false;
	 document.cookie = name + "=" + escape (value) +
	 ((expires == null) ? "" : ("; expires=" +
	 expires.toGMTString())) +
	 ((path == null) ? "" : ("; path=" + path)) +
	 ((domain == null) ? "" : ("; domain=" + domain)) +
	 ((secure == true) ? "; secure" : "");
 }