var msOnPage = 0;
	var intervalID = 0;
	
	function startTimeOnPage() {
		
		intervalID = setInterval( function() { 
			
			msOnPage += 500;
						
			if( 0 == msOnPage % 3000 ) {
				
				$cmhp_jq.ajax( '/eh-content/stat.ajax.php?user=8444&landingpage=&page=262352&nocache=1512037154&ajax=followup' );
								
			}

		}, 500 );
		
	}
	
	function pauseTimeOnPage() {
		
		clearInterval( intervalID );
		
	}
	
	var vis = (function(){
	    var stateKey, eventKey, keys = {
	        hidden: "visibilitychange",
	        webkitHidden: "webkitvisibilitychange",
	        mozHidden: "mozvisibilitychange",
	        msHidden: "msvisibilitychange"
	    };
	    for (stateKey in keys) {
	        if (stateKey in document) {
	            eventKey = keys[stateKey];
	            break;
	        }
	    }
	    return function(c) {
	        if (c) document.addEventListener(eventKey, c);
	        return !document[stateKey];
	    }
	})();
	
	$cmhp_jq( document ).ready( function() {
		
		if( vis() ) {
			
			$cmhp_jq.ajax( '/eh-content/stat.ajax.php?user=8444&landingpage=&page=262352&nocache=1512037154&ajax=initial' );
			startTimeOnPage();
			
		}

		vis( function() {
			  
		   if( vis() ) {
			   
			   startTimeOnPage();
			   
		   } else {
			   
			   pauseTimeOnPage();
			   
		   }
		   
		});
		
	});