GUIDE
					- Left-click and drag the background to move the graph
- Left-click and drag the nodes to reorganize
- Left-click a node to view first level connections
- Double left-click a node to navigate to its page
- Double left-click the background to zoom in
- Right-click the background to zoom out
					sigma.utils.pkg('sigma.canvas.nodes');
sigma.canvas.nodes.image = (function() {
  var _cache = {},
      _loading = {},
      _callbacks = {};
  // Return the renderer itself:
  var renderer = function(node, context, settings) {
    var args = arguments,
        prefix = settings('prefix') || '',
        size = node[prefix + 'size'],
        color = node.color || settings('defaultNodeColor'),
        url = node.url;
    if (_cache[url]) {
      context.save();
      // Draw the clipping disc:
      context.beginPath();
      context.arc(
        node[prefix + 'x'],
        node[prefix + 'y'],
        node[prefix + 'size'],
        0,
        Math.PI * 2,
        true
      );
      context.closePath();
      context.clip();
      // Draw the image
      context.drawImage(
        _cache[url],
        node[prefix + 'x'] - size,
        node[prefix + 'y'] - size,
        2 * size,
        2 * size
      );
      // Quit the "clipping mode":
      context.restore();
      // Draw the border:
      context.beginPath();
      context.arc(
        node[prefix + 'x'],
        node[prefix + 'y'],
        node[prefix + 'size'],
        0,
        Math.PI * 2,
        true
      );
      context.lineWidth = 1;
      context.strokeStyle = node.color || settings('defaultNodeColor');
      context.stroke();
    } else {
      sigma.canvas.nodes.image.cache(url);
      sigma.canvas.nodes.def.apply(
        sigma.canvas.nodes,
        args
      );
    }
  };
  // Let's add a public method to cache images, to make it possible to
  // preload images before the initial rendering:
  renderer.cache = function(url, callback) {
    if (callback)
      _callbacks[url] = callback;
    if (_loading[url])
      return;
    var img = new Image();
    img.onload = function() {
      _loading[url] = false;
      _cache[url] = img;
      if (_callbacks[url]) {
        _callbacks[url].call(this, img);
        delete _callbacks[url];
      }
    };
    _loading[url] = true;
    img.src = url;
  };
  return renderer;
})();
var i,
    s,
    o,
    offset_left = 0.5,
    N = 1,
    E = 40,
    C = 5,
    d = 0.5,
    cs = [],
    g = {
      nodes: [],
      edges: []
    };
if (!sigma.classes.graph.hasMethod('neighbors')){
sigma.classes.graph.addMethod('neighbors', function(nodeId) {
    var k,
        neighbors = {},
        index = this.allNeighborsIndex[nodeId] || {};
    for (k in index)
      neighbors[k] = this.nodesIndex[k];
    return neighbors;
  });
  }
//adding the central node
g.nodes.push({
	id: 4095,
	label: 'Juan Jose Quereda Torres',
    type: 'image',
    url: 'https://research.pasteur.fr/wp-content/uploads/2015/09/research.pasteur.fr_juan-150x150.jpg',
    x: 0,
    y: 0,
	size: 30,
	color: '#DDDDDD'
});
var biggest_node_size = 0;
N=4
	// adding node
	var x_node = Math.cos(2 * 0 * Math.PI / N) * 10;
	var y_node = Math.sin(2 * 0 * Math.PI / N) * 10;
	g.nodes.push({
		id: 67584,
		label: 'PROJECT: Host microbiota modification by epidemic Listeria monocytogenes',
	    x: x_node,
	    y: y_node,
	    type: 'image',
	    url: 'https://research.pasteur.fr/wp-content/uploads/2016/05/research.pasteur.fr_listeriolysin-s-1-150x150.png',
	    page_url: 'https://research.pasteur.fr/fr/project/host-microbiota-modification-by-the-pathogen-listeria-monocytogenes/',
		size: 35,
		color: '#DDDDDD'
	});
	//link content to central post
    g.edges.push({
      id: 409567584,
      size: 0.5,
      source: 4095,
      target: 67584,
    });
	
		
					//check if content already exist
				
				if (x_node<0){
					x_site = x_node + ((Math.random() * 2)-1) - offset_left;
				}else{
					x_site = x_node + ((Math.random() * 2)-1) + offset_left;
				}
	
				if (y_node<0){
					y_site = y_node + ((Math.random() * 2)-1) - offset_left;
				}else{
					y_site = y_node + ((Math.random() * 2)-1) + offset_left;
				}
	
	
				// adding site
				g.nodes.push({
					id: 906,
					label: 'Marie-Agnès Dillies',
			    	type: 'image',
			    	url: 'https://research.pasteur.fr/wp-content/uploads/2018/09/research_pasteur-photomadillies2-150x150.jpg',
			    	page_url: 'https://research.pasteur.fr/fr/member/marie-agnes-dillies/',
			    	x: x_site,
			    	y: y_site,
					size: 10,
					color: '#dddddd'
				});
	
	    		
	    		//link to content
		    	g.edges.push({
		      	id: 67584906,
		      	size: 0.5,
		      	source: 67584,
		      	target: 906		    	});
	
	
	
	
								
			
					//check if content already exist
				
				if (x_node<0){
					x_site = x_node + ((Math.random() * 2)-1) - offset_left;
				}else{
					x_site = x_node + ((Math.random() * 2)-1) + offset_left;
				}
	
				if (y_node<0){
					y_site = y_node + ((Math.random() * 2)-1) - offset_left;
				}else{
					y_site = y_node + ((Math.random() * 2)-1) + offset_left;
				}
	
	
				// adding site
				g.nodes.push({
					id: 7762,
					label: 'Stevenn Volant',
			    	type: 'image',
			    	url: 'https://research.pasteur.fr/wp-content/uploads/2015/07/research.pasteur.fr_stevennvolant-150x150.png',
			    	page_url: 'https://research.pasteur.fr/fr/member/stevenn-volant/',
			    	x: x_site,
			    	y: y_site,
					size: 10,
					color: '#dddddd'
				});
	
	    		
	    		//link to content
		    	g.edges.push({
		      	id: 675847762,
		      	size: 0.5,
		      	source: 67584,
		      	target: 7762		    	});
	
	
	
	
								
			
					//check if content already exist
				
				if (x_node<0){
					x_site = x_node + ((Math.random() * 2)-1) - offset_left;
				}else{
					x_site = x_node + ((Math.random() * 2)-1) + offset_left;
				}
	
				if (y_node<0){
					y_site = y_node + ((Math.random() * 2)-1) - offset_left;
				}else{
					y_site = y_node + ((Math.random() * 2)-1) + offset_left;
				}
	
	
				// adding site
				g.nodes.push({
					id: 37658,
					label: 'Amine Ghozlane',
			    	type: 'image',
			    	url: 'https://research.pasteur.fr/wp-content/uploads/2020/06/research_pasteur-20200223_122542-1-150x150.jpg',
			    	page_url: 'https://research.pasteur.fr/fr/member/amine-ghozlane/',
			    	x: x_site,
			    	y: y_site,
					size: 10,
					color: '#dddddd'
				});
	
	    		
	    		//link to content
		    	g.edges.push({
		      	id: 6758437658,
		      	size: 0.5,
		      	source: 67584,
		      	target: 37658		    	});
	
	
	
	
								
			
					//check if content already exist
				
	
				// update node size depending on the amount of edges
				g.nodes.forEach(function(n) {
					if (n.id == 4095) {
						n.size = n.size + 8;
					}
				});
	
	
	    		
	    		//link to content
		    	g.edges.push({
		      	id: 675844095,
		      	size: 0.5,
		      	source: 67584,
		      	target: 4095		    	});
	
	
	
	
								
			
					//check if content already exist
				
				if (x_node<0){
					x_site = x_node + ((Math.random() * 2)-1) - offset_left;
				}else{
					x_site = x_node + ((Math.random() * 2)-1) + offset_left;
				}
	
				if (y_node<0){
					y_site = y_node + ((Math.random() * 2)-1) - offset_left;
				}else{
					y_site = y_node + ((Math.random() * 2)-1) + offset_left;
				}
	
	
				// adding site
				g.nodes.push({
					id: 4094,
					label: 'Javier Pizarro-Cerda',
			    	type: 'image',
			    	url: 'https://research.pasteur.fr/wp-content/uploads/2015/05/research_pasteur-javier-pizarro-cerda-javier-pizarro-1300-1-150x150.jpg',
			    	page_url: 'https://research.pasteur.fr/fr/member/javier-pizarro-cerda/',
			    	x: x_site,
			    	y: y_site,
					size: 10,
					color: '#dddddd'
				});
	
	    		
	    		//link to content
		    	g.edges.push({
		      	id: 675844094,
		      	size: 0.5,
		      	source: 67584,
		      	target: 4094		    	});
	
	
	
	
								
			
	
	
	// adding node
	var x_node = Math.cos(2 * 1 * Math.PI / N) * 10;
	var y_node = Math.sin(2 * 1 * Math.PI / N) * 10;
	g.nodes.push({
		id: 68928,
		label: 'NEWS: A bacteriocin from epidemic Listeria strains alters the host intestinal microbiota to favor infection (PNAS May 2nd, 2016)',
	    x: x_node,
	    y: y_node,
	    type: 'image',
	    url: 'https://research.pasteur.fr/wp-content/uploads/2016/05/research.pasteur.fr_lm-ptk2-2-150x150.png',
	    page_url: 'https://research.pasteur.fr/fr/news/a-bacteriocin-from-epidemic-listeria-strains-alters-the-host-intestinal-microbiota-to-favor-infection/',
		size: 35,
		color: '#DDDDDD'
	});
	//link content to central post
    g.edges.push({
      id: 409568928,
      size: 0.5,
      source: 4095,
      target: 68928,
    });
	
		
					//check if content already exist
				
	
				// update node size depending on the amount of edges
				g.nodes.forEach(function(n) {
					if (n.id == 4094) {
						n.size = n.size + 8;
					}
				});
	
	
	    		
	    		//link to content
		    	g.edges.push({
		      	id: 689284094,
		      	size: 0.5,
		      	source: 68928,
		      	target: 4094		    	});
	
	
	
	
								
			
					//check if content already exist
				
	
				// update node size depending on the amount of edges
				g.nodes.forEach(function(n) {
					if (n.id == 4095) {
						n.size = n.size + 8;
					}
				});
	
	
	    		
	    		//link to content
		    	g.edges.push({
		      	id: 689284095,
		      	size: 0.5,
		      	source: 68928,
		      	target: 4095		    	});
	
	
	
	
								
			
					//check if content already exist
				
				if (x_node<0){
					x_site = x_node + ((Math.random() * 2)-1) - offset_left;
				}else{
					x_site = x_node + ((Math.random() * 2)-1) + offset_left;
				}
	
				if (y_node<0){
					y_site = y_node + ((Math.random() * 2)-1) - offset_left;
				}else{
					y_site = y_node + ((Math.random() * 2)-1) + offset_left;
				}
	
	
				// adding site
				g.nodes.push({
					id: 3783,
					label: 'Pascale Cossart',
			    	type: 'image',
			    	url: 'https://research.pasteur.fr/wp-content/uploads/2015/05/research.pasteur.fr_pascale-cossart-150x150.jpg',
			    	page_url: 'https://research.pasteur.fr/fr/member/pascale-cossart/',
			    	x: x_site,
			    	y: y_site,
					size: 10,
					color: '#dddddd'
				});
	
	    		
	    		//link to content
		    	g.edges.push({
		      	id: 689283783,
		      	size: 0.5,
		      	source: 68928,
		      	target: 3783		    	});
	
	
	
	
								
			
					//check if content already exist
				
				if (x_node<0){
					x_site = x_node + ((Math.random() * 2)-1) - offset_left;
				}else{
					x_site = x_node + ((Math.random() * 2)-1) + offset_left;
				}
	
				if (y_node<0){
					y_site = y_node + ((Math.random() * 2)-1) - offset_left;
				}else{
					y_site = y_node + ((Math.random() * 2)-1) + offset_left;
				}
	
	
				// adding site
				g.nodes.push({
					id: 4081,
					label: 'Olivier Dussurget',
			    	type: 'image',
			    	url: 'https://research.pasteur.fr/wp-content/uploads/2015/07/research.pasteur.fr_dussurget-150x150.jpg',
			    	page_url: 'https://research.pasteur.fr/fr/member/olivier-dussurget/',
			    	x: x_site,
			    	y: y_site,
					size: 10,
					color: '#dddddd'
				});
	
	    		
	    		//link to content
		    	g.edges.push({
		      	id: 689284081,
		      	size: 0.5,
		      	source: 68928,
		      	target: 4081		    	});
	
	
	
	
								
			
					//check if content already exist
				
				if (x_node<0){
					x_site = x_node + ((Math.random() * 2)-1) - offset_left;
				}else{
					x_site = x_node + ((Math.random() * 2)-1) + offset_left;
				}
	
				if (y_node<0){
					y_site = y_node + ((Math.random() * 2)-1) - offset_left;
				}else{
					y_site = y_node + ((Math.random() * 2)-1) + offset_left;
				}
	
	
				// adding site
				g.nodes.push({
					id: 4101,
					label: 'Marie-Anne Nahori',
			    	type: 'image',
			    	url: 'https://research.pasteur.fr/wp-content/uploads/2015/07/research.pasteur.fr_nahori-150x150.jpg',
			    	page_url: 'https://research.pasteur.fr/fr/member/marie-anne-nahori/',
			    	x: x_site,
			    	y: y_site,
					size: 10,
					color: '#dddddd'
				});
	
	    		
	    		//link to content
		    	g.edges.push({
		      	id: 689284101,
		      	size: 0.5,
		      	source: 68928,
		      	target: 4101		    	});
	
	
	
	
								
			
					//check if content already exist
				
	
				// update node size depending on the amount of edges
				g.nodes.forEach(function(n) {
					if (n.id == 37658) {
						n.size = n.size + 8;
					}
				});
	
	
	    		
	    		//link to content
		    	g.edges.push({
		      	id: 6892837658,
		      	size: 0.5,
		      	source: 68928,
		      	target: 37658		    	});
	
	
	
	
								
			
					//check if content already exist
				
	
				// update node size depending on the amount of edges
				g.nodes.forEach(function(n) {
					if (n.id == 7762) {
						n.size = n.size + 8;
					}
				});
	
	
	    		
	    		//link to content
		    	g.edges.push({
		      	id: 689287762,
		      	size: 0.5,
		      	source: 68928,
		      	target: 7762		    	});
	
	
	
	
								
			
					//check if content already exist
				
	
				// update node size depending on the amount of edges
				g.nodes.forEach(function(n) {
					if (n.id == 906) {
						n.size = n.size + 8;
					}
				});
	
	
	    		
	    		//link to content
		    	g.edges.push({
		      	id: 68928906,
		      	size: 0.5,
		      	source: 68928,
		      	target: 906		    	});
	
	
	
	
								
			
					//check if content already exist
				
				if (x_node<0){
					x_site = x_node + ((Math.random() * 2)-1) - offset_left;
				}else{
					x_site = x_node + ((Math.random() * 2)-1) + offset_left;
				}
	
				if (y_node<0){
					y_site = y_node + ((Math.random() * 2)-1) - offset_left;
				}else{
					y_site = y_node + ((Math.random() * 2)-1) + offset_left;
				}
	
	
				// adding site
				g.nodes.push({
					id: 996,
					label: 'Béatrice Regnault',
			    	type: 'image',
			    	url: '',
			    	page_url: 'https://research.pasteur.fr/fr/?post_type=member&p=996',
			    	x: x_site,
			    	y: y_site,
					size: 10,
					color: '#dddddd'
				});
	
	    		
	    		//link to content
		    	g.edges.push({
		      	id: 68928996,
		      	size: 0.5,
		      	source: 68928,
		      	target: 996		    	});
	
	
	
	
								
			
					//check if content already exist
				
				if (x_node<0){
					x_site = x_node + ((Math.random() * 2)-1) - offset_left;
				}else{
					x_site = x_node + ((Math.random() * 2)-1) + offset_left;
				}
	
				if (y_node<0){
					y_site = y_node + ((Math.random() * 2)-1) - offset_left;
				}else{
					y_site = y_node + ((Math.random() * 2)-1) + offset_left;
				}
	
	
				// adding site
				g.nodes.push({
					id: 2669,
					label: 'Sean Kennedy',
			    	type: 'image',
			    	url: 'https://research.pasteur.fr/wp-content/uploads/2015/03/Kennedy-150x150.jpg',
			    	page_url: 'https://research.pasteur.fr/fr/member/sean-kennedy/',
			    	x: x_site,
			    	y: y_site,
					size: 10,
					color: '#dddddd'
				});
	
	    		
	    		//link to content
		    	g.edges.push({
		      	id: 689282669,
		      	size: 0.5,
		      	source: 68928,
		      	target: 2669		    	});
	
	
	
	
								
			
	
	
	// adding node
	var x_node = Math.cos(2 * 2 * Math.PI / N) * 10;
	var y_node = Math.sin(2 * 2 * Math.PI / N) * 10;
	g.nodes.push({
		id: 67742,
		label: 'TOOL: Dual microscopy assay to discriminate Listeria cellular entry & vacuolar escape',
	    x: x_node,
	    y: y_node,
	    type: 'image',
	    url: 'https://research.pasteur.fr/wp-content/uploads/2016/04/research.pasteur.fr_150716-4colors-b2-3colors-150x150.png',
	    page_url: 'https://research.pasteur.fr/fr/tool/dual-microscopy-assay-to-discriminate-listeria-cellular-entry-vacuolar-escape/',
		size: 35,
		color: '#DDDDDD'
	});
	//link content to central post
    g.edges.push({
      id: 409567742,
      size: 0.5,
      source: 4095,
      target: 67742,
    });
	
		
					//check if content already exist
				
	
				// update node size depending on the amount of edges
				g.nodes.forEach(function(n) {
					if (n.id == 3783) {
						n.size = n.size + 8;
					}
				});
	
	
	    		
	    		//link to content
		    	g.edges.push({
		      	id: 677423783,
		      	size: 0.5,
		      	source: 67742,
		      	target: 3783		    	});
	
	
	
	
								
			
					//check if content already exist
				
	
				// update node size depending on the amount of edges
				g.nodes.forEach(function(n) {
					if (n.id == 4095) {
						n.size = n.size + 8;
					}
				});
	
	
	    		
	    		//link to content
		    	g.edges.push({
		      	id: 677424095,
		      	size: 0.5,
		      	source: 67742,
		      	target: 4095		    	});
	
	
	
	
								
			
					//check if content already exist
				
				if (x_node<0){
					x_site = x_node + ((Math.random() * 2)-1) - offset_left;
				}else{
					x_site = x_node + ((Math.random() * 2)-1) + offset_left;
				}
	
				if (y_node<0){
					y_site = y_node + ((Math.random() * 2)-1) - offset_left;
				}else{
					y_site = y_node + ((Math.random() * 2)-1) + offset_left;
				}
	
	
				// adding site
				g.nodes.push({
					id: 4237,
					label: 'Jost Enninga',
			    	type: 'image',
			    	url: 'https://research.pasteur.fr/wp-content/uploads/2016/06/research.pasteur.fr_jost2015-3-150x150.jpg',
			    	page_url: 'https://research.pasteur.fr/fr/member/jost-enninga/',
			    	x: x_site,
			    	y: y_site,
					size: 10,
					color: '#dddddd'
				});
	
	    		
	    		//link to content
		    	g.edges.push({
		      	id: 677424237,
		      	size: 0.5,
		      	source: 67742,
		      	target: 4237		    	});
	
	
	
	
								
			
					//check if content already exist
				
				if (x_node<0){
					x_site = x_node + ((Math.random() * 2)-1) - offset_left;
				}else{
					x_site = x_node + ((Math.random() * 2)-1) + offset_left;
				}
	
				if (y_node<0){
					y_site = y_node + ((Math.random() * 2)-1) - offset_left;
				}else{
					y_site = y_node + ((Math.random() * 2)-1) + offset_left;
				}
	
	
				// adding site
				g.nodes.push({
					id: 2232,
					label: 'Nathalie Aulner',
			    	type: 'image',
			    	url: 'https://research.pasteur.fr/wp-content/uploads/2015/07/research.pasteur.fr_dsc03316-150x150.jpeg',
			    	page_url: 'https://research.pasteur.fr/fr/member/nathalie-aulner/',
			    	x: x_site,
			    	y: y_site,
					size: 10,
					color: '#dddddd'
				});
	
	    		
	    		//link to content
		    	g.edges.push({
		      	id: 677422232,
		      	size: 0.5,
		      	source: 67742,
		      	target: 2232		    	});
	
	
	
	
								
			
					//check if content already exist
				
				if (x_node<0){
					x_site = x_node + ((Math.random() * 2)-1) - offset_left;
				}else{
					x_site = x_node + ((Math.random() * 2)-1) + offset_left;
				}
	
				if (y_node<0){
					y_site = y_node + ((Math.random() * 2)-1) - offset_left;
				}else{
					y_site = y_node + ((Math.random() * 2)-1) + offset_left;
				}
	
	
				// adding site
				g.nodes.push({
					id: 1585,
					label: 'Anne Danckaert',
			    	type: 'image',
			    	url: '',
			    	page_url: 'https://research.pasteur.fr/fr/member/anne-danckaert/',
			    	x: x_site,
			    	y: y_site,
					size: 10,
					color: '#dddddd'
				});
	
	    		
	    		//link to content
		    	g.edges.push({
		      	id: 677421585,
		      	size: 0.5,
		      	source: 67742,
		      	target: 1585		    	});
	
	
	
	
								
			
					//check if content already exist
				
				if (x_node<0){
					x_site = x_node + ((Math.random() * 2)-1) - offset_left;
				}else{
					x_site = x_node + ((Math.random() * 2)-1) + offset_left;
				}
	
				if (y_node<0){
					y_site = y_node + ((Math.random() * 2)-1) - offset_left;
				}else{
					y_site = y_node + ((Math.random() * 2)-1) + offset_left;
				}
	
	
				// adding site
				g.nodes.push({
					id: 1589,
					label: 'Archivé: Spencer Shorte',
			    	type: 'image',
			    	url: 'https://research.pasteur.fr/wp-content/uploads/2015/02/spencer-150x150.jpg',
			    	page_url: 'https://research.pasteur.fr/fr/?post_type=member&p=1589',
			    	x: x_site,
			    	y: y_site,
					size: 10,
					color: '#dddddd'
				});
	
	    		
	    		//link to content
		    	g.edges.push({
		      	id: 677421589,
		      	size: 0.5,
		      	source: 67742,
		      	target: 1589		    	});
	
	
	
	
								
			
					//check if content already exist
				
	
				// update node size depending on the amount of edges
				g.nodes.forEach(function(n) {
					if (n.id == 4094) {
						n.size = n.size + 8;
					}
				});
	
	
	    		
	    		//link to content
		    	g.edges.push({
		      	id: 677424094,
		      	size: 0.5,
		      	source: 67742,
		      	target: 4094		    	});
	
	
	
	
								
			
	
	
	// adding node
	var x_node = Math.cos(2 * 3 * Math.PI / N) * 10;
	var y_node = Math.sin(2 * 3 * Math.PI / N) * 10;
	g.nodes.push({
		id: 345,
		label: 'TEAM: Interactions bactéries-cellules',
	    x: x_node,
	    y: y_node,
	    type: 'image',
	    url: 'https://research.pasteur.fr/wp-content/uploads/2014/11/research.pasteur.fr_bacteria-cell-interactions-150x150.jpg',
	    page_url: 'https://research.pasteur.fr/fr/team/bacteria-cell-interactions/',
		size: 35,
		color: '#DDDDDD'
	});
	//link content to central post
    g.edges.push({
      id: 4095345,
      size: 0.5,
      source: 4095,
      target: 345,
    });
	
		
					//check if content already exist
				
				if (x_node<0){
					x_site = x_node + ((Math.random() * 2)-1) - offset_left;
				}else{
					x_site = x_node + ((Math.random() * 2)-1) + offset_left;
				}
	
				if (y_node<0){
					y_site = y_node + ((Math.random() * 2)-1) - offset_left;
				}else{
					y_site = y_node + ((Math.random() * 2)-1) + offset_left;
				}
	
	
				// adding site
				g.nodes.push({
					id: 8652,
					label: 'Marie-Thérèse Vicente',
			    	type: 'image',
			    	url: 'https://research.pasteur.fr/wp-content/uploads/2015/07/research.pasteur.fr_marie-therese-150x150.jpeg',
			    	page_url: 'https://research.pasteur.fr/fr/member/marie-therese-vicente/',
			    	x: x_site,
			    	y: y_site,
					size: 10,
					color: '#dddddd'
				});
	
	    		
	    		//link to content
		    	g.edges.push({
		      	id: 3458652,
		      	size: 0.5,
		      	source: 345,
		      	target: 8652		    	});
	
	
	
	
								
			
					//check if content already exist
				
	
				// update node size depending on the amount of edges
				g.nodes.forEach(function(n) {
					if (n.id == 3783) {
						n.size = n.size + 8;
					}
				});
	
	
	    		
	    		//link to content
		    	g.edges.push({
		      	id: 3453783,
		      	size: 0.5,
		      	source: 345,
		      	target: 3783		    	});
	
	
	
	
								
			
	
	
var s = new sigma({
  //container: document.getElementById('graph-main'),
  graph: g,
  renderer: {
    // IMPORTANT:
    // This works only with the canvas renderer, so the
    // renderer type set as "canvas" is necessary here.
    container: document.getElementById('graph-main'),
    type: 'canvas'
  },
  settings: {
    minNodeSize: 6,
    maxNodeSize: 35,
    mouseWheelEnabled: false,
    font: 'Montserrat',
    labelThreshold:25,
    borderSize:1,
    defaultNodeBorderColor: '#999',
    sideMargin:25,
  }
});
// We first need to save the original colors of our
// nodes and edges, like this:
s.graph.nodes().forEach(function(n) {
	n.originalColor = n.color;
});
s.graph.edges().forEach(function(e) {
	e.originalColor = e.color;
});
// When a node is clicked, we check for each node
// if it is a neighbor of the clicked one. If not,
// we set its color as grey, and else, it takes its
// original color.
// We do the same for the edges, and we only keep
// edges that have both extremities colored.
s.bind('clickNode', function(e) {
	var nodeId = e.data.node.id,
	    toKeep = s.graph.neighbors(nodeId);
	toKeep[nodeId] = e.data.node;
	s.graph.nodes().forEach(function(n) {
	  if (toKeep[n.id])
	    n.color = '#35a9f5';
	  else
	    n.color = '#dddddd';
	});
	s.graph.edges().forEach(function(e) {
	  if (toKeep[e.source] && toKeep[e.target])
	    e.color = '#35a9f5';
	  else
	    e.color = '#dddddd';
	});
	// Since the data has been modified, we need to
	// call the refresh method to make the colors
	// update effective.
	s.refresh();
});
// When the stage is clicked, we just color each
// node and edge with its original color.
s.bind('clickStage', function(e) {
	s.graph.nodes().forEach(function(n) {
	  n.color = n.originalColor;
	});
	s.graph.edges().forEach(function(e) {
	  e.color = e.originalColor;
	});
	// Same as in the previous event:
	s.refresh();
});
s.bind("doubleClickNode", function (e) {
	$("#canvas-wrap, .sigma-scene, .sigma-mouse").val();
	ajax_load_page( e.data.node.page_url );
});
var c = s.camera;
s.bind("rightClickStage", function (e) {
	sigma.misc.animation.camera(c, {
	  ratio: c.ratio * c.settings('zoomingRatio')
	}, {
	  duration: 200
	});
});
// Configure the noverlap layout:
var noverlapListener = s.configNoverlap({
  nodeMargin: 10,
  scaleNodes: 0.3,
  gridSize: 1,
  easing: 'quadraticInOut', // animation transition function
  duration: 4000   // animation duration. Long here for the purposes of this example only
});
// Bind the events:
noverlapListener.bind('start stop interpolate', function(e) {
  //console.log(e.type);
  if(e.type === 'start') {
    //console.time('noverlap');
  }
  if(e.type === 'interpolate') {
    //console.timeEnd('noverlap');
  }
});
// Start the layout:
s.startNoverlap();
//s.refresh();
// Initialize the dragNodes plugin:
var dragListener = sigma.plugins.dragNodes(s, s.renderers[0]);
dragListener.bind('startdrag', function(event) {
});
dragListener.bind('drag', function(event) {
});
dragListener.bind('drop', function(event) {
});
dragListener.bind('dragend', function(event) {
});