HTTP_Send(string phpscript, list headernames, list headervalues, list postnames, list postvalues, integer replymaxlength)
{
    //messageRecieved = FALSE;
    //responseId = NULL_KEY;
    list HTTP_Params =
    [
        HTTP_METHOD, "POST",
        HTTP_MIMETYPE, "application/x-www-form-urlencoded",
        HTTP_VERIFY_CERT, TRUE,
        HTTP_VERBOSE_THROTTLE, FALSE
    ];

    if(replymaxlength > 0)
    {
        HTTP_Params += [HTTP_BODY_MAXLENGTH, replymaxlength];
    }
    headernames += ["Password","Time"];
    headervalues += [passPhrase, (string)llGetUnixTime()];




    integer hcount;
    for(;hcount < llGetListLength(headernames);++hcount)
    {
        HTTP_Params +=  [HTTP_CUSTOM_HEADER, llList2String(headernames, hcount), llList2String(headervalues, hcount)];
    }
    string poststring;
    integer pcount;
    for(;pcount < llGetListLength(postnames);++pcount)
    {
        if(pcount > 0) poststring += "&";
        poststring +=  llList2String(postnames, pcount) + "=" + llList2String(postvalues, pcount);
    }
    responseId = llHTTPRequest(server + phpscript,HTTP_Params, poststring);
}