var undef;
  var slideCSS = '';
  var snum = 0;
  var smax = 1;
  var incpos = 0;
  var number = undef;
  var s5mode = true;
  var defaultView = 'slideshow';
  var controlVis = 'visible';
  
  var isIE = navigator.appName == 'Microsoft Internet Explorer' ? 1 : 0;
  var isOp = navigator.userAgent.indexOf('Opera') > -1 ? 1 : 0;
  var isGe = navigator.userAgent.indexOf('Gecko') > -1 && navigator.userAgent.indexOf('Safari') < 1 ? 1 : 0;