le code -->
	<script type="text/javascript">
		// Defines a subclass for mxVertexHandler that adds a set of clickable
		// icons to every selected vertex.
		function mxVertexToolHandler(state)
		{
			mxVertexHandler.apply(this, arguments);
		};

		mxVertexToolHandler.prototype = new mxVertexHandler();
		mxVertexToolHandler.prototype.constructor = mxVertexToolHandler;

		mxVertexToolHandler.prototype.domNode = null;

		mxVertexToolHandler.prototype.init = function()
		{
			mxVertexHandler.prototype.init.appl