function supports_history_api() {
  return !!(window.history && history.pushState);
}

function swapPhoto(href) { 
  var req = new XMLHttpRequest();
  req.open("GET",
           href+'?call=ajax',
           false);
  req.send(null);
  if (req.status == 200) {  
	 document.getElementById("galWrapper").innerHTML = req.responseText;
     setupHistoryClicks();
	 hidead();
	 autoPlay();
	 //alert(href.indexOf("-related"));
     if(href.indexOf("-related")!=-1)
	  {//alert('abc');
		 setTimeout(function(){ $('#next_timer').html('4 Secs');}, 1000);
		 setTimeout(function(){ $('#next_timer').html('3 Secs');}, 2000);
		 setTimeout(function(){ $('#next_timer').html('2 Secs');}, 3000);
		 setTimeout(function(){ $('#next_timer').html('1 Secs');}, 4000);
		 var element = Math.floor(Math.random()*8);   
		$('.VideosRowphoto .storyImg').each( function(index) {
		var href = $(this).attr('href');
		if(index==element){
			var gal_id =  href.replace(/.*?-(\d+)(-\d+|-related)*(\.html)/,"\$1");
			$("#next_gallery_id").val(gal_id);
			$("#next_gallery").val(href);
		}
		});
		 var cname ='__autoplay_it_'+$("#next_gallery_id").val();
		 Set_Cookie(cname, 1, 1, '/');
		 setTimeout('loadNext()', 6000);
	  }
	//eval($("#rhs_banner1").html());
	 var pageT = $("#pagetitle").val();
	 $(document).attr('title', pageT);
	 var pagega=href.replace('http://'+document.domain,"");
	 var pagega=pagega.replace('http://www.indiatimes.com',"");
     var pgcustom = window.location.pathname;
	 var pgcustom=pgcustom.replace(/(.*?-\d+)(-\d+|-related)*(\.html)/,"\$1\$3");
	 var pgcustom =unescape(pgcustom);  
	 _gaq.push(['_setCustomVar', 1, 'Photogallery', pgcustom,3 ]);
	 _gaq.push(['_trackPageview', pagega]); 
  	$.getJSON(ga_cnt_upt_req_url, function(data){});    
	 //photoprevnext(); 
	 fblike(href);
   twlike(href);
   gpolike(href); 
 // alert(slot1); alert(slot2);
   googletag.pubads().refresh([slot1,slot2]);
   var missindia =$('#AdFrame').attr('src');
	$('#AdFrame').attr('src',missindia); 
    return true;
  }
  return false;
}

function addClicker(link) {
  link.addEventListener("click", function(e) {
    if (swapPhoto(link.href)) {
      history.pushState(null, null, link.href);
      e.preventDefault();
    }
  }, true);
}

function addClickerpic(link,nextlink) {
  link.addEventListener("click", function(e) {
    if (swapPhoto(nextlink.href)) {
      history.pushState(null, null, nextlink.href);
      e.preventDefault();
    }
  }, true);
}
function setupHistoryClicks() {
 	if(document.getElementById("nxt"))
	{
		addClickerpic(document.getElementById("arrnxt"),document.getElementById("nxt"));

	}
	if(document.getElementById("prvs"))
	{
		if(document.getElementById("galpics"))
		{
			addClickerpic(document.getElementById("arrprvs"),document.getElementById("prvs"));
		}
	}


	var pagenums = document.getElementsByClassName("numbers");
	 for(var i = 0, j=pagenums.length; i<j; i++){
		 addClicker( pagenums[i]);
	 }
	var prevs = document.getElementsByClassName("previous");
	for(var i = 0, j=prevs.length; i<j; i++){
		if(prevs[i].href!='javascript: void(0);')
		{
			addClicker( prevs[i]);
		}
	 }  
	var next = document.getElementsByClassName("next");
	for(var i = 0, j=next.length; i<j; i++){
		 if(next[i].href!='javascript: void(0);')
		{
			addClicker( next[i]);
		}
	 }   
}

function showGAds(divid) {
    $("#rhs_banner1").html('');
    googletag.cmd.push(function () {
        googletag.display(divid);
        googletag.pubads().refresh();
    });
}

document.ready = function() {  
  if (!supports_history_api()) { 
	  
	  if (e.keyCode == 37 && $(document.activeElement).attr("type") != "textarea"   &&  $(document.activeElement).attr("type") != "text") {  
			//if(auto_play == 0 || auto_play == null ){	
				if($('#prvs').attr('href')){    
					window.location = $('#prvs').attr('href');               
					return false;
				}
				
			//} 
		}else if (e.keyCode == 39 && $(document.activeElement).attr("type") != "textarea"   &&  $(document.activeElement).attr("type") != "text") {    
			//if(auto_play == 0 || auto_play == null ){	
				if($('#nxt').attr('href')){        
					window.location = $('#nxt').attr('href');
					return false;
				}
			//}	  
			
		}return; } 
  setupHistoryClicks(); 
  window.setTimeout(function() {  
    window.addEventListener("popstate", function(e) {
		//alert(window.history.state);
		//alert('here');
		var is_chrome = navigator.userAgent.toLowerCase().indexOf('chrome') > -1;
		if( is_chrome && !$('body').data('allow-popstate-action') ) {
			$('body').data('allow-popstate-action', true);
			return false;
		}
      swapPhoto('http://'+document.domain+location.pathname);
    }, false);
  }, 500);
}
document.addEventListener('keydown', function(e){
      if (e.keyCode == 37 && $(document.activeElement).attr("type") != "textarea"   &&  $(document.activeElement).attr("type") != "text") {  
				  if($('#prvs').attr('href')){    
					$('#prvs').fireEvent('click');
					return false;
				}
			   } 
			    if (e.keyCode == 39 && $(document.activeElement).attr("type") != "textarea"   &&  $(document.activeElement).attr("type") != "text") { 
				if($('#nxt').attr('href')){   
					$('#nxt').fireEvent('click');
					return false;
				}
			   }
            }, false);

function fblike(href) {
            var fb = document.createElement('fb:like');
            fb.setAttribute("data-href", href);
            fb.setAttribute("data-layout", "box_count");
            fb.setAttribute("show_faces", "true");
            fb.setAttribute("data-show-faces", "true");
            fb.setAttribute("data-width", "100");
            fb.setAttribute("font", "arial");
			var fDiv = document.getElementById("widget-fb");
			fDiv.removeChild(fDiv.childNodes[0]); 
            document.getElementById("widget-fb").appendChild(fb);
            if (typeof FB !== 'undefined') {
                FB.XFBML.parse(document.getElementById('widget-fb'));
            }
            
      
}

function twlike(href) {

            if (typeof (twttr) !== 'undefined') {
				$('#widget-twt').empty();
                $('#widget-twt').html('<a data-count="vertical" class="twitter-share-button" href="http://twitter.com/share" data-url="' + href + '" data-text="' + document.title + '">Tweet</a>');
                twttr.widgets.load();
				  
            }
        
   
}



function gpolike(href) {

      if (typeof (gapi) !== 'undefined') {
				$('#___plusone_0').empty();
				var el = document.getElementById("___plusone_0");
                gapi.plusone.render(el, {
                    'size': 'tall',
                    'href': href
                });
			// $('#widget-gplus').css('overflow', 'hidden');
            }
            
   
}

(function($, undefined) {

	$.fireEvent = function(el, eventName, opt) {
		if (el === undefined)
			return false;
		
		if('jquery' in el){
		  el = el[0];
		}

    if(!evts[eventName]){
			return false;
    }
    
    var evt;
    
		if (typeof(document.createEvent) != 'undefined') {//W3C way
			evt = document.createEvent(evts[eventName].w3c);
			evts[eventName].initEvt(evt, el, opt);
			el.dispatchEvent(evt);

		} else {//IE
			if (eventName == 'click') { 
				// we use jquery to fire the click event because of a bug in IE7-8
				$(el).click();
			} else {
				el.fireEvent(evts[eventName].ie);
			}
		}
	};

	$.fn.fireEvent = function(eventName, opt) {
		if (this.length == 0)
			return this;

		$.fireEvent.call({},this[0], eventName, opt);

		return this;
	};

	/* -- Event cross-browser implementation -- */
	var evts = {
		'click': {//Tested/Work with Firefox 3.6 & Safari 5.0.1 & Chromium 6.0
			ie: 'onclick',
			w3c: 'MouseEvents',
			initEvt: function(evt, target, opt) {
				var _def = $.extend({
						type: 'click',
						canBubble: true,
						cancelable: true,
						view: window,
						detail: 1,
						screenX: 1,
						screenY: 1,
						clientX: 1,
						clientY: 1,
						ctrlKey: false,
						altKey: false,
						shiftKey: false,
						metaKey: false,
						button: 0,
						relatedTarget: target}, opt);

				evt.initMouseEvent(_def.type,
				_def.canBubble, _def.cancelable, _def.view, _def.detail,
				_def.screenX, _def.screenY, _def.clientX, _def.clientY,
				_def.ctrlKey, _def.altKey, _def.shiftKey, _def.metaKey, _def.button, _def.relatedTarget);
			}
		},
	
	};

})(jQuery);