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 != null){
		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);
}

	var buzzArray = new Array(
		'...I certainly believe that it is a nice and innovative initiative...<br/><b>-InformationMadness.com, Website</b>',
		'..for people thirsty to travel, 90di is their Google...just by typing in a few words, it gets you your schedule... (English translation)<br/><b>-Anand Bazaar Patrika, Prestigious Bangla News paper</b>',
		'90DI Travel makes travel searching Simple & Natural !<br/><b>-http://www.techpluto.com, website</b>',
		'They seem to be doing a great job on interpreting natural queries and thus making the train booking process much simpler.<br/><b>-Rockey Nebhwani, InfosysBlog</b',
		'After spending just a little time on 90di, you can really learn a lot of basic travel information to make your travel experience much more enjoyable while in India.<br/><b>-greatstartups.com, website</b>',
		'90DI.com is a travel search portal with many interesting features woven around it ...<br/><b>-www.indiastartupdiary.com, website</b>',
		'Head over to 90di.com to have a closer look. This one is likely to be extremely helpful!...<br/><b>-Techtree.com, Website</b>'
	);
	
	var currIndex = 0;
	var REFRESH_INTERVAL = 7000;
	var FADE_INTERVAL = 2000;
	var timerInterval = FADE_INTERVAL;
	var moreLink = '<br>&nbsp;&nbsp;<a href="/travel/getBuzzPage" target="_blank">More&#187;</a>';
	
	function showBuzz(id){
	
		if(timerInterval == REFRESH_INTERVAL){
			//Fade the existing buzz
			fade(id);
			timerInterval = FADE_INTERVAL;
		}else{
			var buzzDiv = document.getElementById(id);
			buzzDiv.innerHTML = buzzArray[currIndex] + moreLink ;
			currIndex = currIndex+1;
			if(currIndex==buzzArray.length)
				currIndex=0;
			buzzDiv.style.opacity='0';
			buzzDiv.style.filter='alpha(opacity=0)';
			fade(id);
			timerInterval = REFRESH_INTERVAL;
		}

		setTimeout("showBuzz('"+id+"')",timerInterval);
	}