function tabSwitch_2(active, number, tab_prefix, content_prefix) {

    for (var i = 1; i < number + 1; i++) {
         document.getElementById(content_prefix+i).style.display = 'none';
         document.getElementById(tab_prefix + i).className = '';
    }
        document.getElementById(content_prefix+active).style.display = 'block';
        document.getElementById(tab_prefix + active).className = 'active';
   }
   
/*  var TimeToFade = 1000.0;

   function fade(eid) {
       var element = document.getElementById(eid);
       if (element == null)
           return;

       if (element.FadeState == null) {
           if (element.style.opacity == null
        || element.style.opacity == ''
        || element.style.opacity == '1') {
               element.FadeState = 2;
           }
           else {
               element.FadeState = -2;
           }
       }

       if (element.FadeState == 1 || element.FadeState == -1) {
           element.FadeState = element.FadeState == 1 ? -1 : 1;
           element.FadeTimeLeft = TimeToFade - element.FadeTimeLeft;
       }
       else {
           element.FadeState = element.FadeState == 2 ? -1 : 1;
           element.FadeTimeLeft = TimeToFade;
           setTimeout("animateFade(" + new Date().getTime() + ",'" + eid + "')", 33);
       }
   }

   function animateFade(lastTick, eid) {
       var curTick = new Date().getTime();
       var elapsedTicks = curTick - lastTick;

       var element = document.getElementById(eid);

       if (element.FadeTimeLeft <= elapsedTicks) {
           element.style.opacity = element.FadeState == 1 ? '1' : '0';
           element.style.filter = 'alpha(opacity = '
        + (element.FadeState == 1 ? '100' : '0') + ')';
           element.FadeState = element.FadeState == 1 ? 2 : -2;
           return;
       }

       element.FadeTimeLeft -= elapsedTicks;
       var newOpVal = element.FadeTimeLeft / TimeToFade;
       if (element.FadeState == 1)
           newOpVal = 1 - newOpVal;

       element.style.opacity = newOpVal;
       element.style.filter = 'alpha(opacity = ' + (newOpVal * 100) + ')';

       setTimeout("animateFade(" + curTick + ",'" + eid + "')", 33);
   }

   function pausecomp(millis) {
   var date = new Date();
   var curDate = null;

       do { curDate = new Date(); }
   while (curDate - date < millis);
   }  
   */