this.createLayer = function( name )

This function clears the selection and then creates a new top-level layer in the drawing with the given name and sets the current layer to it.

this.deleteCurrentLayer = function()

This function clears the selection and then deletes the current layer from the drawing.

this.getNumLayers = function()

This function returns the number of layers in the current drawing.

this.getSvgString = function()

Returns the current drawing as raw SVG XML text.

this.save = function()

Serializes the current drawing into SVG XML text and returns it to the ‘saved’ handler.

this.setSvgString = function( xmlString )

This function sets the current drawing as the input SVG XML.