var qsParm = new Array();

function querystring() 
{
  var query = window.location.search.substring(1);
  var parms = query.split('&');

  for (var i=0; i<parms.length; i++) {
    var pos = parms[i].indexOf('=');
    if (pos > 0) {
      var key = parms[i].substring(0,pos);
      var val = parms[i].substring(pos+1);
      qsParm[key] = val;
    }
  }
}