[OpenLayers-Users] Change line and point

[adidas]

Hello! How to keep new coordinates in db when the user moved a point?
So I create points:
/        var layerNodes = new OpenLayers.Layer.Vector("Nodes", {//
//                strategies : [new OpenLayers.Strategy.BBOX({resFactor: 
1.1})],//
//                protocol   : new OpenLayers.Protocol.HTTP({//
//                    url    : "get_layers.php?mode=GetNodesMarkers",//
//                    format : new OpenLayers.Format.Text()//
//                })//
//            });//
//            map.addLayer(layerNodes);/

And how to make line change (it is necessary, that the user could extend 
line) and to keep new coordinates in a DB?
So i create the line:
/lineLayer = new OpenLayers.Layer.Vector("Lines");//
//    map.addLayer(lineLayer);//
//    var line = new OpenLayers.Geometry.LineString(points);//
//    line.transform(new OpenLayers.Projection("EPSG:4326"), new 
OpenLayers.Projection("EPSG:900913"));//
//    var lineFeature = new OpenLayers.Feature.Vector(line, null, 
style_arr[CableLine_arr[k]['style']]);//
//    lineLayer.addFeatures([lineFeature]);/

Movement of lines and points I plan to do, as here: 
http://openlayers.org/dev/examples/drag-feature.html

Thanks for answers!
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