limit live transactions in the homepage

public/js/controllers/index.js

@@ -31,12 +31,12 @@ angular.module('insight.system').controller('IndexController',
 
   socket.on('tx', function(tx) {
     var txStr = tx.txid.toString();
+    _getTransaction(txStr);
+
     console.log('Transaction received! ' + JSON.stringify(tx));
-    if (parseInt($scope.txs.length, 10) > parseInt(TRANSACTION_DISPLAYED, 10) - 1) {
+    if (parseInt($scope.txs.length, 10) > parseInt(TRANSACTION_DISPLAYED, 10)) {
       $scope.txs = $scope.txs.slice(Math.max($scope.txs.length - TRANSACTION_DISPLAYED, 1));
     }
-
-    _getTransaction(txStr);
   });
 
   socket.on('block', function(block) {