                     # e.preventDefault()
                 # if there is no previous line : backspace at the beginning of 
                 # firs line : no effect, nothing to do.
-                else
-                    console.log '_backspace 4 - test ok2'
+                #else
+                    #console.log '_backspace 4 - test ok2'
 
             # 1.2 caret is in the middle of the line : delete one caracter
             else
-                console.log '_backspace 5 - deletion of one caracter - test ok2'
+                #console.log '_backspace 5 - deletion of one caracter - test ok2'
                 # we consider that we are in a text node
                 textNode = sel.range.startContainer
                 startOffset = sel.range.startOffset


        # 3- Case of a multi lines selection
        else
            console.log '_backspace 7'
            @_deleteMultiLinesSelections()
            e.preventDefault()


            targetLineDepthAbs : absDepth
            targetLineDepthRel : relDepth
        context.lastAddedLine = @_insertLineAfter(p)
        # prepare the new lingFrag & lineEl
        context.currentLineFrag = document.createDocumentFragment()
        context.currentLineEl = context.currentLineFrag
