unlockAllLayers_Photoshop

unlockAllLayers_Photoshop.jsx

// save as unlockAllLayers_Photoshop.jsx and put it in your scripts folder to see it in File > Scripts

var topLayer = app.activeDocument.layers[0];  
app.activeDocument.activeLayer = topLayer;  
do{  
    unlockLayer();  
    selectLayerBelow();  
}while(topLayer != app.activeDocument.activeLayer)  
function unlockLayer(){  
    if(app.activeDocument.activeLayer.isBackgroundLayer ) app.activeDocument.activeLayer.name = 'From Background';  
    if(app.activeDocument.activeLayer.allLocked) app.activeDocument.activeLayer.allLocked = false;  
    if(app.activeDocument.activeLayer.pixelsLocked) app.activeDocument.activeLayer.pixelsLocked = false;  
    if(app.activeDocument.activeLayer.positionLocked) app.activeDocument.activeLayer.positionLocked = false;  
    if(app.activeDocument.activeLayer.transparentPixelsLocked) app.activeDocument.activeLayer.transparentPixelsLocked = false;  
};  
function selectLayerBelow(){  
    var desc = new ActionDescriptor();  
        var ref = new ActionReference();  
        ref.putEnumerated( charIDToTypeID( "Lyr " ), charIDToTypeID( "Ordn" ), charIDToTypeID( "Bckw" ) );  
    desc.putReference( charIDToTypeID( "null" ), ref );  
    desc.putBoolean( charIDToTypeID( "MkVs" ), false );  
    executeAction( charIDToTypeID( "slct" ), desc, DialogModes.NO );  
};