diff --git a/lib/ns_client.js b/lib/ns_client.js
new file mode 100644
index 0000000..cb9f529
--- /dev/null
+++ b/lib/ns_client.js
@@ -0,0 +1,99 @@
+//
+// Copyright (c) 2012 Rodolphe Breard
+// 
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+//
+
+var NsClient = function() {
+    this.storage = chrome.storage.sync;
+    this.state = "actif";
+    this.allowed_statuses =  ["actif", "away", "idle", "lock"];
+    this.is_connected = false;
+};
+
+NsClient.prototype.connect = function() {
+    var cnt = function(elem) {
+	return function(infos) {
+	    if (typeof infos.login !== "undefined" && typeof infos.pwd_socks !== "undefined") {
+		elem.is_connected = true;
+		console.info("connected to the netsoul server");
+		elem.updateStatus();
+	    }
+	};
+    };
+
+    console.log('connecting...');
+    if (!this.is_connected) {
+	this.storage.get(null, cnt(this));
+    } else {
+	console.warn("already connected");
+    }
+};
+
+NsClient.prototype.disconnect = function() {
+    if (this.is_connected) {
+	this.is_connected = false;
+	console.info("disconnected");
+	this.updateStatus();
+    } else {
+	console.warn("not connected");
+    }
+};
+
+NsClient.prototype.updateStatus = function() {
+    if (this.is_connected) {
+	console.info("updating status");
+    } else {
+	console.warn("not connected");
+    }
+};
+
+NsClient.prototype.recv = function() {
+    if (this.is_connected) {
+    } else {
+	console.warn("not connected");
+    }
+};
+
+NsClient.prototype.changeStatus = function(new_status) {
+    if (this.is_connected) {
+	if (this.allowed_statuses.indexOf(new_status) !== -1) {
+	    this.status = new_status;
+	} else {
+	    console.warn("invalid status: " + new_status);
+	}
+    } else {
+	console.warn("not connected");
+    }
+};
+
+NsClient.prototype.init = function() {
+    var upd = function(elem) {
+	return function() {
+	    if (elem.is_connected) {
+		elem.updateStatus();
+	    }
+	};
+    },
+    con = function(elem) {
+	return function() {
+	    if (!elem.is_connected) {
+		elem.connect();
+	    }
+	};
+    };
+
+    con(this).apply();
+    setInterval(con(this), 60000);
+    setInterval(upd(this), 600000);
+};