!function(d,_){"use strict";if("IntersectionObserver"in d&&"IntersectionObserverEntry"in d&&"intersectionRatio"in d.IntersectionObserverEntry.prototype)"isIntersecting"in d.IntersectionObserverEntry.prototype||Object.defineProperty(d.IntersectionObserverEntry.prototype,"isIntersecting",{get:function(){return 0<this.intersectionRatio}});else{var e=[];t.prototype.THROTTLE_TIMEOUT=100,t.prototype.POLL_INTERVAL=null,t.prototype.USE_MUTATION_OBSERVER=!0,t.prototype.observe=function(e){if(!this._observationTargets.some(function(t){return t.element==e})){if(!e||1!=e.nodeType)throw new Error("target must be an Element");this._registerInstance(),this._observationTargets.push({element:e,entry:null}),this._monitorIntersections(),this._checkForIntersections()}},t.prototype.unobserve=function(e){this._observationTargets=this._observationTargets.filter(function(t){return t.element!=e}),this._observationTargets.length||(this._unmonitorIntersections(),this._unregisterInstance())},t.prototype.disconnect=function(){this._observationTargets=[],this._unmonitorIntersections(),this._unregisterInstance()},t.prototype.takeRecords=function(){var t=this._queuedEntries.slice();return this._queuedEntries=[],t},t.prototype._initThresholds=function(t){var e=t||[0];return Array.isArray(e)||(e=[e]),e.sort().filter(function(t,e,n){if("number"!=typeof t||isNaN(t)||t<0||1<t)throw new Error("threshold must be a number between 0 and 1 inclusively");return t!==n[e-1]})},t.prototype._parseRootMargin=function(t){var e=(t||"0px").split(/\s+/).map(function(t){var e=/^(-?\d*\.?\d+)(px|%)$/.exec(t);if(!e)throw new Error("rootMargin must be specified in pixels or percent");return{value:parseFloat(e[1]),unit:e[2]}});return e[1]=e[1]||e[0],e[2]=e[2]||e[0],e[3]=e[3]||e[1],e},t.prototype._monitorIntersections=function(){this._monitoringIntersections||(this._monitoringIntersections=!0,this.POLL_INTERVAL?this._monitoringInterval=setInterval(this._checkForIntersections,this.POLL_INTERVAL):(n(d,"resize",this._checkForIntersections,!0),n(_,"scroll",this._checkForIntersections,!0),this.USE_MUTATION_OBSERVER&&"MutationObserver"in d&&(this._domObserver=new MutationObserver(this._checkForIntersections),this._domObserver.observe(_,{attributes:!0,childList:!0,characterData:!0,subtree:!0}))))},t.prototype._unmonitorIntersections=function(){this._monitoringIntersections&&(this._monitoringIntersections=!1,clearInterval(this._monitoringInterval),this._monitoringInterval=null,o(d,"resize",this._checkForIntersections,!0),o(_,"scroll",this._checkForIntersections,!0),this._domObserver&&(this._domObserver.disconnect(),this._domObserver=null))},t.prototype._checkForIntersections=function(){var h=this._rootIsInDom(),c=h?this._getRootRect():{top:0,bottom:0,left:0,right:0,width:0,height:0};this._observationTargets.forEach(function(t){var e=t.element,n=m(e),o=this._rootContainsTarget(e),i=t.entry,r=h&&o&&this._computeTargetAndRootIntersection(e,c),s=t.entry=new a({time:d.performance&&performance.now&&performance.now(),target:e,boundingClientRect:n,rootBounds:c,intersectionRect:r});i?h&&o?this._hasCrossedThreshold(i,s)&&this._queuedEntries.push(s):i&&i.isIntersecting&&this._queuedEntries.push(s):this._queuedEntries.push(s)},this),this._queuedEntries.length&&this._callback(this.takeRecords(),this)},t.prototype._computeTargetAndRootIntersection=function(t,e){if("none"!=d.getComputedStyle(t).display){for(var n,o,i,r,s,h,c,a,u=m(t),l=v(t),p=!1;!p;){var f=null,g=1==l.nodeType?d.getComputedStyle(l):{};if("none"==g.display)return;if(l==this.root||l==_?(p=!0,f=e):l!=_.body&&l!=_.documentElement&&"visible"!=g.overflow&&(f=m(l)),f&&(n=f,o=u,void 0,i=Math.max(n.top,o.top),r=Math.min(n.bottom,o.bottom),s=Math.max(n.left,o.left),h=Math.min(n.right,o.right),a=r-i,!(u=0<=(c=h-s)&&0<=a&&{top:i,bottom:r,left:s,right:h,width:c,height:a})))break;l=v(l)}return u}},t.prototype._getRootRect=function(){var t;if(this.root)t=m(this.root);else{var e=_.documentElement,n=_.body;t={top:0,left:0,right:e.clientWidth||n.clientWidth,width:e.clientWidth||n.clientWidth,bottom:e.clientHeight||n.clientHeight,height:e.clientHeight||n.clientHeight}}return this._expandRectByRootMargin(t)},t.prototype._expandRectByRootMargin=function(n){var t=this._rootMarginValues.map(function(t,e){return"px"==t.unit?t.value:t.value*(e%2?n.width:n.height)/100}),e={top:n.top-t[0],right:n.right+t[1],bottom:n.bottom+t[2],left:n.left-t[3]};return e.width=e.right-e.left,e.height=e.bottom-e.top,e},t.prototype._hasCrossedThreshold=function(t,e){var n=t&&t.isIntersecting?t.intersectionRatio||0:-1,o=e.isIntersecting?e.intersectionRatio||0:-1;if(n!==o)for(var i=0;i<this.thresholds.length;i++){var r=this.thresholds[i];if(r==n||r==o||r<n!=r<o)return!0}},t.prototype._rootIsInDom=function(){return!this.root||i(_,this.root)},t.prototype._rootContainsTarget=function(t){return i(this.root||_,t)},t.prototype._registerInstance=function(){e.indexOf(this)<0&&e.push(this)},t.prototype._unregisterInstance=function(){var t=e.indexOf(this);-1!=t&&e.splice(t,1)},d.IntersectionObserver=t,d.IntersectionObserverEntry=a}function a(t){this.time=t.time,this.target=t.target,this.rootBounds=t.rootBounds,this.boundingClientRect=t.boundingClientRect,this.intersectionRect=t.intersectionRect||{top:0,bottom:0,left:0,right:0,width:0,height:0},this.isIntersecting=!!t.intersectionRect;var e=this.boundingClientRect,n=e.width*e.height,o=this.intersectionRect,i=o.width*o.height;this.intersectionRatio=n?i/n:this.isIntersecting?1:0}function t(t,e){var n,o,i,r=e||{};if("function"!=typeof t)throw new Error("callback must be a function");if(r.root&&1!=r.root.nodeType)throw new Error("root must be an Element");this._checkForIntersections=(n=this._checkForIntersections.bind(this),o=this.THROTTLE_TIMEOUT,i=null,function(){i||(i=setTimeout(function(){n(),i=null},o))}),this._callback=t,this._observationTargets=[],this._queuedEntries=[],this._rootMarginValues=this._parseRootMargin(r.rootMargin),this.thresholds=this._initThresholds(r.threshold),this.root=r.root||null,this.rootMargin=this._rootMarginValues.map(function(t){return t.value+t.unit}).join(" ")}function n(t,e,n,o){"function"==typeof t.addEventListener?t.addEventListener(e,n,o||!1):"function"==typeof t.attachEvent&&t.attachEvent("on"+e,n)}function o(t,e,n,o){"function"==typeof t.removeEventListener?t.removeEventListener(e,n,o||!1):"function"==typeof t.detatchEvent&&t.detatchEvent("on"+e,n)}function m(t){var e;try{e=t.getBoundingClientRect()}catch(t){}return e?(e.width&&e.height||(e={top:e.top,right:e.right,bottom:e.bottom,left:e.left,width:e.right-e.left,height:e.bottom-e.top}),e):{top:0,bottom:0,left:0,right:0,width:0,height:0}}function i(t,e){for(var n=e;n;){if(n==t)return!0;n=v(n)}return!1}function v(t){var e=t.parentNode;return e&&11==e.nodeType&&e.host?e.host:e}}(window,document);

if (typeof(stockdio_event) == "undefined") {
  stockdio_event = true;
  var stockdio_eventMethod = window.addEventListener ? "addEventListener" : "attachEvent";
  var stockdio_eventer = window[stockdio_eventMethod];
  var stockdio_messageEvent = stockdio_eventMethod == "attachEvent" ? "onmessage" : "message";
  stockdio_eventer(stockdio_messageEvent, function (e) {
	  if (e.origin !== "https://api.stockdio.com") return;
	 if (typeof(e.data) != "undefined" && typeof(e.data.method) != "undefined") {
		eval(e.data.method);
	 }
  },false);	   
}

(function () {
	  if (typeof(stockdio_events) == "undefined") {
		  stockdio_events = true;  
	   	   		   
		   stockdioOnloadFunction = function () {
			   if (window.IntersectionObserver) {
					var elements = document.querySelectorAll('iframe[iframesrc]');		
					var element; var i;
					for (i=0; i< elements.length; i++){
						element = elements[i];
						if (element!=null && typeof(element) != "undefined") {					
							  var observer = new IntersectionObserver(function(entries) {
									//entries.forEach(function(entry) {
									var entry;var j;
									for (j=0; j< entries.length; j++){	
										entry = entries[j];
										element = entry.target;
										if (element.src != ""){
											observer.unobserve(element);
										}
										else {
											if (entry.isIntersecting) {
												if (entry.intersectionRatio > 0) {
													element.src = element.getAttribute("iframesrc");
												}
											}
										}
									//});					
									}
							  }, {
								rootMargin: "0px"
							  });
							  observer.POLL_INTERVAL = 100; // Time in milliseconds.
							  observer.observe(element);
							}
						};
				}		
				else{
					//browser do not support IntersectionObserver
					changeStockdioIframeSrc();
				}			
			}
			
		window.addEventListener ? 
		window.addEventListener("load",stockdioOnloadFunction,false) : 
		window.attachEvent && window.attachEvent("onload",stockdioOnloadFunction);
			
			changeStockdioIframeSrc = function(){
				setTimeout(function(){
					var elements = document.querySelectorAll('iframe[iframesrc]');	
					var element;var i;
					for (i=0; i< elements.length; i++){
						element = elements[i];
						var b = false;
						if (element!=null && typeof(element) != "undefined" && element.src == "") {
							if (checkVisible(element))
								element.src = element.getAttribute("iframesrc");
							else b = true;
						}
						if (b) changeStockdioIframeSrc();
					}

				}, 100);
			}
			
			checkVisible = function(element) {
			  var rect = element.getBoundingClientRect();
			  var viewHeight = Math.max(document.documentElement.clientHeight, window.innerHeight);
			  return !(rect.bottom < 0 || rect.top - viewHeight >= 0);
			}			
	  }
} ());