var req = createXMLHttpRequest1();	

function showlegInfo() 
{
	document.getElementById("leg-div").style.display='inline';
}



function createXMLHttpRequest1()
 {
	var ua;
	if(window.XMLHttpRequest)
	{
		try
		{
			ua = new XMLHttpRequest();
		} 
		catch(e)
		{
			ua = false;
		}
	}
	else if(window.ActiveXObject)
	{
		try
		{
			ua = new ActiveXObject("Microsoft.XMLHTTP");
		} 
		catch(e)
		{
			ua = false;
		}
	}
	return ua;
}
var clearIntervals = '';
function changePage2(pageNum) { 
	document.getElementById('preNav').style.display = 'none';
	document.getElementById('preNavDec').style.display = 'block';
	document.getElementById('nxtNav').style.display = 'none';
	document.getElementById('nxtNavDec').style.display = 'block';
	clearIntervals = setTimeout("changePage("+pageNum+")", 1000);
}

function changePage(pageNum) { 
	req.open('get', 'ravereviews.php?event=reviews&page='+pageNum);
	req.onreadystatechange = changePage_resp;
	//document.getElementById('ravreview').style.display = 'none';
	req.send(null);
	
}


function changePage_resp()
 {
	if (req.readyState == 4)
	 {
		var result;
		result = req.responseText;
	   document.getElementById('ravreview').style.display = 'none';
	   document.getElementById('review_change').innerHTML = result;
	   clearInterval(clearIntervals);
	   return false;
	}
}


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.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);
}