function sendLocReq(iuser,igroupname,msg)
{
  var igroupname="any";
  if (!iuser) iuser=author;
  if ( !igroupname || igroupname == "<Let Recipient Decide>" || igroupname == "" )
    igroupname = "any";
  if ( igroupname == "" || igroupname.length > 32 )
  {
    showError( "Groupname is invalid" );
    return;
  }
  else if ( iuser == "" || iuser > 32 )
  {
    showError( "Username is invalid" );
    return;
  }
  if(!msg||msg=="") msg="Requesting permission to track your location";
  if(msg.length>500){
    showError( "Msg can be max 500 chars" );
    return;
  }
  execAjaxQuery( "/widgets/requestuser.php",
                 "&gn="+encu(igroupname )+
                 "&go="+ encu(iuser)+"&rp=1&rl=1&cp=1&cl=1&msg="+encu(msg),
                 function(response){showError(response.errmsg=="Success"?"Request Sent":response.errmsg);hide("reqdiv");},
                 false );
}