MultiTabBlock.js

function getNewTabId(){
	return Math.ceil(Math.random()*1000000000).toString();
}

function deactivateTabSession(){
}
var tabIdKey ="__TAB_ID__";

if(sessionStorage.getItem(tabIdKey) == null)
{
	var newTabId = getNewTabId();
	sessionStorage.setItem(tabIdKey, newTabId);
	localStorage.setItem(tabIdKey, newTabId);
}else if(sessionStorage.getItem(tabIdKey) != localStorage.getItem(tabIdKey))
{
	deactivateTabSession();
}