diff --git a/pimvrhelpers.js b/pimvrhelpers.js
new file mode 100644
index 0000000..6e9e06d
--- /dev/null
+++ b/pimvrhelpers.js
@@ -0,0 +1,173 @@
+//---------PIM helper functions-----------------------------------------------------------
+/*
+ currently PmWiki backend
+   could use http://fabien.benetou.fr/Site/AllRecentChanges?action=source to check for update
+   heavy but nearly no processing required
+   enough if done once per minute or so
+   if update, request serverrender on modified page
+     IFF it's being displayed
+ planned Evernote backend
+   https://github.com/evernote/evernote-sdk-js
+   https://github.com/wanasit/everest-js
+   https://stackoverflow.com/questions/24580588/how-to-list-all-the-notes-from-an-evernote-notebook-javascript-node-js
+   https://dev.evernote.com/doc/articles/polling_notification.php
+ or other popular PIMs
+   https://developers.trello.com/
+   http://www.xmind.net/developer/
+ ideally with webhooks on a backend abstraction with coherent API 
+   
+*/
+  
+  function pimvrSaveItemsStates(callback) {
+    function updateItemsStates(globalStates){    
+      let pageStates = {};
+      let [group, page] = getPageGroup();
+      let elements = document.body.querySelectorAll('.pimvr-item');
+      for (let item of elements) {
+        let id = item.getAttribute("id");
+        let position = item.getComputedAttribute("position");
+        pageStates[id] = {"position": position};
+      }
+      globalStates[group+"_"+page] = pageStates;
+      pimvrSaveRemote("ItemsStates", JSON.stringify(globalStates));
+      return "Items states saved";
+      
+    }
+    pimvrLoadRemote("ItemsStates", updateItemsStates);
+  }  
+  
+  function pimvrSaveConfiguration(callback) {
+    let configuration = {};
+    let elements = document.body.querySelectorAll('.pimvr-configuration');
+    for (let item of elements) {
+      let id = item.getAttribute("id");
+      let position = item.getComputedAttribute("position");
+      configuration[id] = {"position": position};
+    }
+    
+    pimvrSaveRemote("Configuration", JSON.stringify(configuration));
+    return "Configuration saved";
+  }
+  
+  function pimvrLoadIoTData(callback) {
+    // should give min/max ranges, here seems to be 0-1010
+    // to use (once normalized) as an attribute value
+    // used on http://jsbin.com/nucanat/edit?html,output
+    // warning HTTPS on tick is really hammering
+    const readURL = "https://fabien.benetou.fr/PIMVRdata/IoTData?action=source";
+    
+    var myRequest = new XMLHttpRequest();
+    myRequest.open('GET', readURL);
+    myRequest.onreadystatechange = function () {
+      if (myRequest.readyState === 4) {
+        callback(myRequest.responseText);
+      }
+    };
+    myRequest.send();
+  }  
+  
+  function pimvrServerRender(group, page, callback) {
+    const readURL = "https://fabien.benetou.fr/"+group+"/"+page+"?action=serverrender";
+    
+    var myRequest = new XMLHttpRequest();
+    myRequest.open('GET', readURL);
+    myRequest.onreadystatechange = function () {
+      if (myRequest.readyState === 4) {
+        callback(JSON.parse(myRequest.responseText).res);
+      }
+    };
+    myRequest.send();
+  }
+  
+  function pimvrLoadRemoteSmarthWatchConfiguration(callback) {
+    
+    const readURL = "https://fabien.benetou.fr/PIMVRdata/SmartWatchConfiguration?action=source";
+    
+    var myRequest = new XMLHttpRequest();
+    myRequest.open('GET', readURL);
+    myRequest.onreadystatechange = function () {
+      if (myRequest.readyState === 4) {
+        callback(JSON.parse(myRequest.responseText));
+      }
+    };
+    myRequest.send();
+  }
+  //pimvrLoadRemoteSmarthWatchConfiguration(console.log);
+  //   usage unclear, can be used as
+  //     haptic feedback on interactible items e.g. vibrate on gaze
+  //     controller backup e.g. gaze+click
+  //     controller locator e.g. making 2 bright columns
+  //     heart rate monitor (sadly not with PebbleTime) to reshape experience
+  
+  function pimvrLoadRemoteMetadata(group, page, callback, query) {
+    
+    const readURL = "https://fabien.benetou.fr/"+group+"/"+page+"?action=metajson";
+    
+    var myRequest = new XMLHttpRequest();
+    myRequest.open('GET', readURL+"&query="+query, true);
+    myRequest.onreadystatechange = function () {
+      if (myRequest.readyState === 4) {
+        callback(JSON.parse(myRequest.responseText));
+      }
+    };
+    myRequest.send();
+  }
+
+  function pimvrLoadRemote(page, callback) {
+    
+    const readURL = "https://fabien.benetou.fr/PIMVRdata/"+page+"?action=source";
+    // assumes JSON
+    
+    var myRequest = new XMLHttpRequest();
+    myRequest.open('GET', readURL);
+    myRequest.onreadystatechange = function () {
+      if (myRequest.readyState === 4) {
+        callback(JSON.parse(myRequest.responseText));
+      }
+    };
+    myRequest.send();
+  }
+    
+  function pimvrSaveRemote(page, data) {
+    const writeURL = "https://fabien.benetou.fr/PIMVRdata/"+page+"?action=edit";
+    
+    var myWriteRequest = new XMLHttpRequest();
+    myWriteRequest.open('POST', writeURL, true);
+    myWriteRequest.setRequestHeader("Content-Type",
+     "application/x-www-form-urlencoded");
+    myWriteRequest.onreadystatechange = function () {
+      if (myWriteRequest.readyState === 4) {
+        //console.log(myWriteRequest.responseText);
+        console.log("Save on "+page+" sucessful");
+      }
+    };
+    console.log("trying to open "+writeURL+"post=1&author=PIMVR&authpw=edit_password&text="+data)
+    myWriteRequest.send("post=1&author=PIMVR&authpw=edit_password&text="+data);
+    // cf http://www.pmwiki.org/wiki/PmWiki/EditingAPI
+  }
+  
+function loadRemoteGraph(callback, params){
+  const myDataURL = "https://vatelier.net/MyDemo/newtooling/wiki_graph.json";
+  // not that as agressive as it gets cached
+  
+	var myRequest = new XMLHttpRequest();
+	myRequest.open('GET', myDataURL);
+	myRequest.onreadystatechange = function () {
+		if (myRequest.readyState === 4) {
+      //window.PIMgraph = JSON.parse(myRequest.responseText).Nodes;
+      callback(JSON.parse(myRequest.responseText).Nodes, params);
+		}
+	};
+	myRequest.send();
+}
+
+function getMyNeighbours(nodes, page){
+  console.log(nodes[page].Targets);
+}
+  
+function getPageGroup(){   
+    let group = QueryString.group || "Main";
+    let page = QueryString.page || "HomePage";
+    return [group, page];
+}
+