function setCookie(name,value) {
   argv=arguments;
   argc=arguments.length;
   expires=(argc>2) ? argv[2] : null;
   path=(argc>3) ? argv[3] : null;
   domain=(argc>4) ? argv[4] : null;
   secure=(argc>5) ? argv[5] : false;
   document.cookie=name+"="+escape(value) +
     ((expires === null) ? "" : ("; expires="+expires.toUTCString())) +
     ((path === null) ? "" : ("; path="+path)) +
     ((domain === null) ? "" : ("; domain="+domain)) +
     ((secure === true) ? "; secure" : "");
}


function getCookie(name) {
   arg=name+"=";
   alen=arg.length;
   clen=document.cookie.length;
   i=0;
   while (i<clen) {
      j=i+alen;
      if (document.cookie.substring(i,j) == arg) {
          return getCookieVal(j);
          }
      i=document.cookie.indexOf(" ",i) + 1;
      if (i === 0) {break;}
   }
}
function getCookieVal(offset) {
   endstr=document.cookie.indexOf(";",offset);
   if (endstr == -1) {endstr=document.cookie.length;}
   return unescape(document.cookie.substring(offset,endstr));
}