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	public CharSequence encode(IRequestTarget requestTarget) {
		if (!(requestTarget instanceof IBookmarkablePageRequestTarget))
		{
			throw new IllegalArgumentException("this encoder can only be used with instances of " +
					IBookmarkablePageRequestTarget.class.getName());
		}
		IBookmarkablePageRequestTarget target = (IBookmarkablePageRequestTarget)requestTarget;

		AppendingStringBuffer url = new AppendingStringBuffer(40);
		url.append(getMountPath());
		final String className = target.getPageClass().getSimpleName();
		PageParameters pageParameters = target.getPageParameters();
		if (target.getPageMapName() != null)
		{
			pageParameters.put(WebRequestCodingStrategy.PAGEMAP, WebRequestCodingStrategy
					.encodePageMapName(target.getPageMapName()));
		}
		final String fragment = pageParameters.getString("#");
		if(fragment != null)
			pageParameters.remove("#");

		url.append("/");
		url.append(className);

		if(!pageParameters.isEmpty())
		{
			url.append("?");
			appendParameters(url, pageParameters);
		}
		if(fragment != null)
			url.append("#").append(urlEncodePathComponent(fragment));
		return url;
	}