list of special blocks is now dynamic via ajax

articles/20170425/header.html

@@ -1,7 +1,7 @@
 <div class="container-fluid bg-grey">
   <div class="row">
     <div class="col-sm-4">
-      <br><img id="logo_ARTICLE" src="images/block_image.php?methode=spline" width="100%; height: auto"></img>
+      <br><img id="logo_ARTICLE" src="images/block_image.php?methode=spline_2" width="100%; height: auto"></img>
       <br><p>ARTICLE</p>
     </div>
     <div class="col-sm-8">

data/getKnownBlocksList.php

@@ -0,0 +1,25 @@
+<?php
+
+// ---
+// --- La config globale
+// ---
+chdir('/opt/TOPISTO/apps');
+require_once '/opt/TOPISTO/apps/global/inc/config.php';
+
+// ---
+// --- External dependances
+// ---
+require TOPISTO_PATH.'/ressources/vendor/autoload.php';
+
+// ---
+// --- Internal dependances
+// ---
+require_once APP_PATH.'/blockchain/inc/block.php';
+
+header('Content-Type: application/json');
+
+echo blockchain::getSpecialBlocksJSON();
+
+die();
+
+?>

explorer.php

@@ -53,7 +53,7 @@
           var pos = $(this).offset().top;
           var winTop = $(window).scrollTop();
           if (pos < winTop + 600) {
-            ajouterPreviousBlock();
+            blockchainExplorer.ajouterPreviousBlock();
             $(this).addClass("slide");
           }
         });
@@ -64,7 +64,7 @@
     {
       cur_height  = [];
       cur_methode=la_methode;
-      return initBlockExplorer(null);
+      return blockchainExplorer.init();
     }
   </script>
 

images/20170200-content.html

@@ -1,106 +0,0 @@
-<div class="container-fluid bg-grey">
-  <div class="row">
-    <div class="col-sm-8">
-      <h2>A digital currency</h2>
-      <p>
-      Use cryptography.<br>
-      No "central bank".<br>
-      P2P network.<br>
-      </p>
-    </div>
-    <div class="col-sm-4 align-middle">
-       <img src="images/bitcoin.jpg" width="100%; height: auto"></img>
-    </div>
-  </div>
-</div>
-
-<div class="container-fluid">
-  <div class="row">
-    <div class="col-sm-4 align-middle">
-       <img src="images/wallet.png" height="300px"></img>
-    </div>
-    <div class="col-sm-8">
-      <h2>WALLET</h2>
-      <p>
-      Use cryptography.<br>
-      No "central bank".<br>
-      P2P network.<br>
-      </p>
-    </div>
-  </div>
-</div>
-
-<div class="container-fluid bg-grey">
-  <div class="row">
-    <div class="col-sm-8">
-      <h2>Transaction</h2>
-      <p>
-When Bob is sending 42 <span class="glyphicon glyphicon-bitcoin"></span> to Alice, the bitcoin protocol is creating a transaction.<br> 
-A transaction is the balance between his Inputs and his Outputs.
-<ul>
-  <li>First the network needs to be sure that Bob has got enough <span class="glyphicon glyphicon-bitcoin"></span> in his wallet.<br>So Bob will include a list of transactions that he has received before.<br>This is the inputs of the transactions.<br>For example, previous transaction's amount are 10, 25 and another 10, so total inputs are 45 <span class="glyphicon glyphicon-bitcoin"></span></li>
-   <li>As the input's sum is superior to the amount of the transaction, an ouput is added.<br>This output is the change to Bob.<br>In the example, this 3 <span class="glyphicon glyphicon-bitcoin"></span></li>
-  <li>Fees are took by the network to process the transaction.<br>Let say it will take 0.5<span class="glyphicon glyphicon-bitcoin"></span>.<br>This is another ouput</li>
-  <li>So Alice will get only a part of the transaction's amount.<br>this the last output, 41.5<span class="glyphicon glyphicon-bitcoin"></span></li>
-</ul>
-So the transaction is a made with :
-<ul>
-  <li>Inputs : a list of previous transactions that bob has received</li>
-  <li>Outputs : a list of amounts to send to Alice, Bob, and fees</li>
-  <li>A timestamp</li>
-</ul>
-Then the wallet will broadcast the transaction on the network.<br>
-It will be sent to the area called "mempool".<br>
-Nodes of the network will validate the transaction by verfying the Inputs and the Ouputs.<br>
-A hash of the transaction is computed.<br>
-So the transaction is sealed.
-      </p>
-    </div>
-    <div class="col-sm-4 align-middle">
-       <img src="images/bob_to_alice.gif" width="100%; height: auto"></img>
-    </div>
-  </div>
-</div>
-
-<div class="container-fluid">
-  <div class="row">
-    <div class="col-sm-4">
-       <img src="images/tx2block.gif" width="100%; height: auto"></img>
-    </div>
-    <div class="col-sm-8">
-      <h2>Block</h2>
-      <p>
-Then the bitcoin protocol is grouping validated transactions in blocks.<br>
-So a block is an array of transactions.<br>
-A block is made with :
-<ul>
-  <li>An array of transactions.<br>
-That's what my script is drawing.<br>
-Running the transactions array, it is computing the sum of each outputs of each transaction.<br>
-Then, it draws a rectangle for each sum.<br>
-  </li>
-  <li>A "proof of work".<br>The miner is computing a special hash that depends on the array of transaction and that will answer to a constraint.<br>This hash is very difficult to compute. In fact it is not really computed, the miner must test every value until he find the solution.<br></li>
-<li>That why the network will give him a reward.<br>This is a special transaction that has no inputs.</li>
-</ul>
-      </p>
-    </div>
-
-  </div>
-</div>
-
-<div class="container-fluid bg-grey">
-  <div class="row">
-    <div class="col-sm-8">
-      <h2>Blockchain</h2>
-      <p>
-Each block has a hash and a reference to the ihash of the previous block.<br>
-So blocks are chained together.<br>
-      </p>
-    </div>
-
-    <div class="col-sm-4">
-       <img src="/images/loading.gif" width="100%; height: auto"></img>
-    </div>
-
-  </div>
-</div>

images/block_image.php

@@ -26,20 +26,20 @@ $methode='hasard';
 $mode=9999;
 
 // ---
-// --- Le cas échéant, on cherche block passé en argument
+// --- Le cas échéant, on cherche le block passé en argument
 // ---
 if (isset($_REQUEST['hash']))    $block_hash = $_REQUEST['hash'];
 if (isset($_REQUEST['methode'])) $methode    = $_REQUEST['methode'];
 if (isset($_REQUEST['mode']))    $mode       = intval($_REQUEST['mode']);
 
 $img = null;
+$str_mode = '';
+if ($mode != 9999) $str_mode = '-'.$mode;
 
 // --- 
 // --- Le cas général : on trouve le fichier image demandé
 // ---
-$imagefilename  = DATA_PATH.'/'.$methode.'/'.$block_hash;
+$imagefilename  = DATA_PATH.'/'.$methode.'/'.$block_hash.$str_mode.'.png';
-if ($mode != 9999) $imagefilename .= '-'.$mode;
-$imagefilename .= '.png';
 if (file_exists($imagefilename)) $img = imagecreatefrompng($imagefilename); 
 
 // ---

js/blockexplorer.js

@@ -1,340 +1,267 @@
-    // Init array
+blockchainExplorer = function(){
-    var liste_blocks = [
-      {
-        name   : 'WHALE201810',
-        hash   : '0000000000000000000f9f2dadfb8f312572183272802cbfcc4ff95b4ee6777d',
-        height : 545911
-      },
-      {
-        name   : 'BLOCK21E800',
-        hash   : '00000000000000000021e800c1e8df51b22c1588e5a624bea17e9faa34b2dc4a',
-        height : 528249
-      },
-      {
-        name   : 'HURRICANE_1',
-        hash   : '0000000000000000000fe6d521a187a5523d5cef6f6c178923ff82ffe5a0f372',
-        height : 506734
-      },
-      {
-        name   : 'SEGWIT',
-        hash   : '000000000000000000cbeff0b533f8e1189cf09dfbebf57a8ebe349362811b80',
-        height : 481823
-      },
-      {
-        name   : 'SEGWIT_LOCK',
-        hash   : '0000000000000000012e6060980c6475a9a8e62a1bf44b76c5d51f707d54522c',
-        height : 479808
-      },
-      {
-        name   : 'BCC',
-        hash   : '00000000000000000019f112ec0a9982926f1258cdcc558dd7c3b7e5dc7fa148',
-        height : 478559
-      },
-      {
-        name   : 'BIP_91_LOCK',
-        hash   : '0000000000000000015411ca4b35f7b48ecab015b14de5627b647e262ba0ec40',
-        height : 477120
-      },
-      {
-        name   : 'HALVING_2',
-        hash   : '000000000000000002cce816c0ab2c5c269cb081896b7dcb34b8422d6b74ffa1',
-        height : 420000
-      },
-      {
-        name   : 'WHALE201311',
-        hash   : '0000000000000001bc7156dd1183c87859b326affa3a5cdd157e809537f0b284',
-        height : 270953
-      },
-      {
-        name   : 'HALVING_1',
-        hash   : '000000000000048b95347e83192f69cf0366076336c639f9b7228e9ba171342e',
-        height : 210000
-      },
-      {
-        name   : 'PIZZA',
-        hash   : '00000000006de085dadb3ec413ef074022fe781121b467e98960280dd246bb00',
-        height : 57035
-      },
-      {
-        name   : 'TOPISTO',
-        hash   : '000000000a73e64735a2b75c97ea674950a9018da1420d01328a918c9ff9852c',
-        height : 5637
-      },
-      {
-        name   : 'LEET',
-        hash   : '000000008bf44a528a09d203203a6a97c165cf53a92ecc27aed0b49b86a19564',
-        height : 1337
-      },
-      {
-        name   : 'LUCIFER',
-        hash   : '00000000fc5b3c76f27f810ee775e480ae7fd604fd196b2d8da4257fcd39f4f9',
-        height : 666
-      },
-      {
-        name   : 'THE_ANSWER',
-        hash   : '00000000314e90489514c787d615cea50003af2023796ccdd085b6bcc1fa28f5',
-        height : 42
-      },
-      {
-        name   : 'GENESIS',
-        hash   : '000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f',
-        height : 0
-      }
-    ];
 
-    var flag_nav    = true;
+  // Init array
-    var classes     = ['bg-grey-even','bg-grey-odd'];
+  var liste_blocks   = null;
-    var cur_class   = 0;
+  var flag_nav       = true;
-    var cur_height  = [];
+  var classes        = ['bg-grey-even','bg-grey-odd'];
-    var cur_methode = 'hasard';
+  var cur_class      = 0;
+  var cur_height     = [];
+  var cur_methode    = 'hasard';
+  var isInitSelector = false;
 
-    function precisionRound(number) {
+  function precisionRound(number) {
       var precision = 4;
       var factor = Math.pow(10, precision);
       return Math.round((number/100000000) * factor) / factor;
-    }
+  }
 
-    function getblockNameFromHash(hash)
+  function getblockNameFromHash(hash)
+  {
+    var retour = '';
+    liste_blocks.forEach(function(item){
+      if (hash == item.hash) retour = item.name;
+    });
+    return retour;
+  }
+
+  function getblocHashFromName(name)
+  {
+    var retour = '';
+    liste_blocks.forEach(function(item){
+      if (name == item.name) retour = item.hash;
+    });
+    return retour;
+  }
+
+  function addInfoForBlock(block)
+  {
+    var height = '300px';
+    var contenu = '';
+    var downloadingImage = new Image();
+
+    cur_height.push(block.height);
+    
+    cur_class  = 1 - cur_class;
+
+    blockName = getblockNameFromHash(block.hash);
+    if (blockName != '') blockName = ' ( '+blockName+' )';
+      
+    contenu += '      <h2> <span style="font-size:12px">block</span> '+block.height+blockName+'</h2>';
+    contenu += '      <table width="100%">';
+    //contenu += '       <tr><td>hash</td><td align="right"><b>'+block.hash+'</b></td></tr>';
+    //contenu += '       <tr><td>index</td><td align="right"><b>'+block.block_index+'</b></td></tr>';
+    contenu += '        <tr><td>timestamp</td><td align="right"><b>'+block.time+'</b></td></tr>';
+    contenu += '        <tr><td>nonce</td><td align="right"><b>'+block.nonce+'</b></td></tr>';
+    contenu += '        <tr><td>nb tx</td><td align="right"><b>'+block.n_tx+'</b></td></tr>';
+    contenu += '        <tr><td>outputs</td><td align="right"><b>'+precisionRound(block.topisto_outputs).toFixed(4)+'</b></td></tr>';
+    contenu += '        <tr><td>inputs</td><td align="right"><b>'+precisionRound(block.topisto_inputs).toFixed(4)+'</b></td></tr>';
+    contenu += '        <tr><td>fees</td><td align="right"><b>'+precisionRound(block.topisto_fees).toFixed(4)+'</b></td></tr>';
+    contenu += '        <tr><td>reward</td><td align="right"><b>'+precisionRound(block.topisto_reward).toFixed(4)+'</b></td></tr>';
+    contenu += '      </table>';
+
+    $('#info_'+block.height).html(contenu);
+
+    downloadingImage.onload = function(){
+      $('#img_'+block.height).attr('src', this.src);   
+      //$('#img_'+block.height).attr('height', height);
+      //$('#img_'+block.height).attr('width','auto');
+      flag_nav = true;
+    };
+    downloadingImage.src = 'images/block_image.php?methode='+cur_methode+'&hash='+block.hash;
+
+    return true;
+  }
+
+  function addDivForBlock(block_height)
+  {
+    var contenu = '';
+
+    contenu += '<div id="block_'+block_height+'" class="container-fluid '+classes[cur_class]+'">';
+    contenu += '  <div class="row">';
+    contenu += '    <div class="col-sm-8" id="info_'+block_height+'">';
+    contenu += '      <h2>COMPUTING ...</h2>';
+    contenu += '    </div>';
+    contenu += '    <div class="col-sm-4 text-right">';
+    contenu += '      <div width="100%" class="text-center">';
+    contenu += '        <img id="img_'+block_height+'" src="images/loading.gif" class="img-responsive"></img>';
+    contenu += '      </div>';
+    contenu += '    </div>';
+    contenu += '  </div>';
+    contenu += '</div>';
+
+    $('#blockchain').append(contenu);
+
+    return true;
+  }
+
+  function addDivForVoid()
+  {
+    var contenu = '';
+
+    contenu += '<div id="the_void" class="container-fluid '+classes[cur_class]+'">';
+    contenu += '  <div class="row">';
+    contenu += '    <div class="col-sm-8">';
+    contenu += '      <h2>the VOID ... </h2>';
+    contenu += '    </div>';
+    contenu += '    <div class="col-sm-4 text-right">';
+    contenu += '      <div width="100%" class="text-center">';
+    contenu += '        <img src="images/loading.gif" class="img-responsive"></img>';
+    contenu += '      </div>';
+    contenu += '    </div>';
+    contenu += '  </div>';
+    contenu += '</div>';
+
+    $('#blockchain').append(contenu);
+
+    return true;
+  }
+
+  function toggleForwardBtn()
+  {
+    if (cur_height.length < 3)
     {
-      var retour = '';
+      $('#fast_forward_btn').removeClass('btn-success');
-      liste_blocks.forEach(function(item){
+      $('#fast_forward_btn').addClass('btn-secondary');
-        if (hash == item.hash) retour = item.name;
+      $('#btn-forward').removeClass('btn-info');
-      });
+      $('#btn-forward').addClass('btn-secondary');
-      return retour;
+    } else {
+      $('#fast_forward_btn').removeClass('btn-secondary');
+      $('#fast_forward_btn').addClass('btn-success');
+      $('#btn-forward').removeClass('btn-secondary');
+      $('#btn-forward').addClass('btn-info');
     }
+    return true;      
+  }
 
-    function getblocHashFromName(name)
+  function gotoBlock(block_name)
+  {
+    $(document).scrollTop( $("#explorer").offset().top );
+    // Bloquer la navigation pendant le calcul
+    if (!flag_nav)
     {
-      var retour = '';
+      window.alert('A block image is currently computed, please wait ...');
-      liste_blocks.forEach(function(item){
+      return false;
-        if (name == item.name) retour = item.hash;
-      });
-      return retour;
     }
+    flag_nav   = false;
 
-    function addInfoForBlock(block)
+    if (block_name == 'NEXT')
     {
-      var height = '300px';
+      flag_nav   = true;
-      var contenu = '';
-      var downloadingImage = new Image();
 
-      cur_height.push(block.height);
+      // Supprimer un block
-      
-      cur_class  = 1 - cur_class;
-
-      blockName = getblockNameFromHash(block.hash);
-      if (blockName != '') blockName = ' ( '+blockName+' )';
-      
-      contenu += '      <h2> <span style="font-size:12px">block</span> '+block.height+blockName+'</h2>';
-      contenu += '      <table width="100%">';
-      //contenu += '       <tr><td>hash</td><td align="right"><b>'+block.hash+'</b></td></tr>';
-      //contenu += '       <tr><td>index</td><td align="right"><b>'+block.block_index+'</b></td></tr>';
-      contenu += '        <tr><td>timestamp</td><td align="right"><b>'+block.time+'</b></td></tr>';
-      contenu += '        <tr><td>nonce</td><td align="right"><b>'+block.nonce+'</b></td></tr>';
-      contenu += '        <tr><td>nb tx</td><td align="right"><b>'+block.n_tx+'</b></td></tr>';
-      contenu += '        <tr><td>outputs</td><td align="right"><b>'+precisionRound(block.topisto_outputs).toFixed(4)+'</b></td></tr>';
-      contenu += '        <tr><td>inputs</td><td align="right"><b>'+precisionRound(block.topisto_inputs).toFixed(4)+'</b></td></tr>';
-      contenu += '        <tr><td>fees</td><td align="right"><b>'+precisionRound(block.topisto_fees).toFixed(4)+'</b></td></tr>';
-      contenu += '        <tr><td>reward</td><td align="right"><b>'+precisionRound(block.topisto_reward).toFixed(4)+'</b></td></tr>';
-      contenu += '      </table>';
-
-      $('#info_'+block.height).html(contenu);
-
-      downloadingImage.onload = function(){
-        $('#img_'+block.height).attr('src', this.src);   
-        //$('#img_'+block.height).attr('height', height);
-        //$('#img_'+block.height).attr('width','auto');
-        flag_nav = true;
-      };
-      downloadingImage.src = 'images/block_image.php?methode='+cur_methode+'&hash='+block.hash;
-
-      return true;
-    }
-
-    function addDivForBlock(block_height)
-    {
-      var contenu = '';
-
-      contenu += '<div id="block_'+block_height+'" class="container-fluid '+classes[cur_class]+'">';
-      contenu += '  <div class="row">';
-      contenu += '    <div class="col-sm-8" id="info_'+block_height+'">';
-      contenu += '      <h2>COMPUTING ...</h2>';
-      contenu += '    </div>';
-      contenu += '    <div class="col-sm-4 text-right">';
-      contenu += '      <div width="100%" class="text-center">';
-      contenu += '        <img id="img_'+block_height+'" src="images/loading.gif" class="img-responsive"></img>';
-      contenu += '      </div>';
-      contenu += '    </div>';
-      contenu += '  </div>';
-      contenu += '</div>';
-
-      $('#blockchain').append(contenu);
-
-      return true;
-    }
-
-    function addDivForVoid()
-    {
-      var contenu = '';
-
-      contenu += '<div id="the_void" class="container-fluid '+classes[cur_class]+'">';
-      contenu += '  <div class="row">';
-      contenu += '    <div class="col-sm-8">';
-      contenu += '      <h2>the VOID ... </h2>';
-      contenu += '    </div>';
-      contenu += '    <div class="col-sm-4 text-right">';
-      contenu += '      <div width="100%" class="text-center">';
-      contenu += '        <img src="images/loading.gif" class="img-responsive"></img>';
-      contenu += '      </div>';
-      contenu += '    </div>';
-      contenu += '  </div>';
-      contenu += '</div>';
-
-      $('#blockchain').append(contenu);
-
-      return true;
-    }
-
-    function toggleForwardBtn()
-    {
       if (cur_height.length < 3)
       {
-        $('#fast_forward_btn').removeClass('btn-success');
+        window.alert('No Next Block, you are at '+$('#blockSelector').val()+' block !');
-        $('#fast_forward_btn').addClass('btn-secondary');
-        $('#btn-forward').removeClass('btn-info');
-        $('#btn-forward').addClass('btn-secondary');
-      } else {
-        $('#fast_forward_btn').removeClass('btn-secondary');
-        $('#fast_forward_btn').addClass('btn-success');
-        $('#btn-forward').removeClass('btn-secondary');
-        $('#btn-forward').addClass('btn-info');
-      }
-      return true;      
-    }
-
-
-    function gotoBlock(block_name)
-    {
-      $(document).scrollTop( $("#explorer").offset().top );
-
-      // Bloquer la navigation pendant le calcul
-      if (!flag_nav)
-      {
-        window.alert('A block image is currently computed, please wait ...');
         return false;
       }
-      flag_nav   = false;
 
-      if (block_name == 'NEXT')
+      liste_blocks['PREVIOUS'] = liste_blocks['BLOCK_'+cur_height[cur_height.length-1]];
-      {
+      cur_height.pop();
-        flag_nav   = true;
         
-        // Supprimer un block
+      toggleForwardBtn();
-        if (cur_height.length < 3)
-        {
-          window.alert('No Next Block, you are at '+$('#blockSelector').val()+' block !');
-          return false;
-        }
 
-        liste_blocks['PREVIOUS'] = liste_blocks['BLOCK_'+cur_height[cur_height.length-1]];
+      $('#block_'+cur_height[cur_height.length-2]).slideDown(400, function() {
-        cur_height.pop();
+        // Animation complete.
+        $('#blockchain').children('div:last').remove();
+        cur_class = 1 - cur_class;
+      });
 
-        toggleForwardBtn();
+    } else {
-
+      // Ajouter un block
-        $('#block_'+cur_height[cur_height.length-2]).slideDown(400, function() {
-          // Animation complete.
-          $('#blockchain').children('div:last').remove();
-          cur_class = 1 - cur_class;
-        });
-
-      } else {
-        // Ajouter un block
-        addDivForBlock(cur_height[cur_height.length-1] - 1);
-
-        // Décaler d'un block vers le haut
-        if (cur_height.length > 1) $('#block_'+cur_height[cur_height.length-2]).slideUp();
-
-        block_hash = '';
-        if (block_name != 'LAST') block_hash = '?block_hash='+liste_blocks[block_name];
-        $.getJSON('data/getBlockInfo.php'+block_hash, function( data ) {
-          liste_blocks['PREVIOUS'] = data.prev;
-          liste_blocks['BLOCK_'+data.height] = data.hash;
-          addInfoForBlock(data);
-
-          toggleForwardBtn();
-        });
-      }
-
-      return true;
-    }
-
-    function ajouterPreviousBlock()
-    {
-      // Bloquer la navigation pendant le calcul
-      if (!flag_nav) return false;
-      flag_nav = false;
-
-      // Ajouter un div
       addDivForBlock(cur_height[cur_height.length-1] - 1);
-      // Mettre les infos du
+
-      block_hash = '?block_hash='+liste_blocks['PREVIOUS'];
+      // Décaler d'un block vers le haut
+      if (cur_height.length > 1) $('#block_'+cur_height[cur_height.length-2]).slideUp();
+
+      block_hash = '';
+      if (block_name != 'LAST') block_hash = '?block_hash='+liste_blocks[block_name];
       $.getJSON('data/getBlockInfo.php'+block_hash, function( data ) {
         liste_blocks['PREVIOUS'] = data.prev;
         liste_blocks['BLOCK_'+data.height] = data.hash;
         addInfoForBlock(data);
+
+        toggleForwardBtn();
       });
     }
 
-    function initBlockchain(block_name)
+    return true;
-    {
+  }
-      $(document).scrollTop( $("#explorer").offset().top );
 
-      $('#blockchain').html('');
+  function _ajouterPreviousBlock()
-      cur_height = [];
+  {
-      cur_class  = 0;
+    // Bloquer la navigation pendant le calcul
-      flag_nav   = true;
+    if (!flag_nav) return false;
+    flag_nav = false;
 
-      block_hash = '';
+    // Ajouter un div
-      if (block_name != 'LAST') block_hash = '?block_hash='+getblocHashFromName(block_name);
+    addDivForBlock(cur_height[cur_height.length-1] - 1);
-      $.getJSON('data/getBlockInfo.php'+block_hash, function( data ) {
+    // Mettre les infos du
-        addDivForBlock(data.height);        
+    block_hash = '?block_hash='+liste_blocks['PREVIOUS'];
-        addInfoForBlock(data);
+    $.getJSON('data/getBlockInfo.php'+block_hash, function( data ) {
+      liste_blocks['PREVIOUS'] = data.prev;
+      liste_blocks['BLOCK_'+data.height] = data.hash;
+      addInfoForBlock(data);
+    });
+  }
 
-        liste_blocks['PREVIOUS'] = data.prev;
+  function initBlockchain(block_name)
-        if (data.prev != '0000000000000000000000000000000000000000000000000000000000000000')
+  {
-          gotoBlock('PREVIOUS');
+    $(document).scrollTop( $("#explorer").offset().top );
-        else 
+    $('#blockchain').html('');
-          addDivForVoid();
+    cur_height = [];
-      });
+    cur_class  = 0;
+    flag_nav   = true;
 
-      return true;
+    block_hash = '';
-    }
+    if (block_name != 'LAST') block_hash = '?block_hash='+getblocHashFromName(block_name);
+    $.getJSON('data/getBlockInfo.php'+block_hash, function( data ) {
+      addDivForBlock(data.height);        
+      addInfoForBlock(data);
 
-    function blockSelectorChange()
+      liste_blocks['PREVIOUS'] = data.prev;
-    {
+      if (data.prev != '0000000000000000000000000000000000000000000000000000000000000000')
-      initBlockchain($('#blockSelector').val());
+        gotoBlock('PREVIOUS');
-      $('#fast_forward_btn').attr('data-original-title', $('#blockSelector').val());
+      else 
-    }
+        addDivForVoid();
-    function initBlockSelector()
+    });
+
+    return true;
+  }
+
+  function blockSelectorChange()
+  {
+    initBlockchain($('#blockSelector').val());
+    $('#fast_forward_btn').attr('data-original-title', $('#blockSelector').val());
+  }
+
+  function initBlockSelector()
+  {
+    if (!isInitSelector)
     {
       // Init the selector
       var select = $('#blockSelector');
-      if (typeof select.isInitSelector == 'undefined')
-      {
-        select.isInitSelector = true;
-        $.each(liste_blocks, function (key, bloc) {
-          select.append(new Option(bloc.name, bloc.name));
-        });
-      }
-    }
       
-    function initBlockExplorer(leblock)
+      $.each(liste_blocks, function (key, bloc) {
-    {
+        select.append(new Option(bloc.name, bloc.name));
+      });
+
+      isInitSelector = true;
+    }
+  }
+
+  function _init()
+  {
+    $.getJSON('data/getKnownBlocksList.php', function( data ) {
+      liste_blocks =  data;
       initBlockSelector();
       if (cur_height.length == 0) initBlockchain('LAST');
       return true;
-    }
-
-    $(document).ready(function(){
-      blockchainListener.addBlockHook(initBlockExplorer);
     });
+  }
+
+  return {init: _init, ajouterPreviousBlock: _ajouterPreviousBlock};
+}();
+
+$(document).ready(function(){
+  blockchainExplorer.init();
+});