Bug 179636 [Smoke] Chart can not be previewed [0001]
Description: Chart can not be previewed Build number: 2.2.0.v20070328-0630 Steps to reproduce: 1. New a chart, preview. Expected result: Chart is displayed correctly. Actual result: Chart can not be previewed. Error log: N/A
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/utility/ParameterAccessor.java
* Application Context Attribute value
	 */
	public static final String ATTR_APPCONTEXT_VALUE = "AppContextValue"; 
	/**
	 * The initialized properties map
	 */
	public static Map initProps;
	/**
	 * viewer properties
	 */
	public static final String PROP_BASE_URL = "base_url"; 
	/**
	 * Engine supported output formats
	 */
	public static String[] supportedFormats = {PARAM_FORMAT_HTML,
			PARAM_FORMAT_PDF};
	/**
	 * Flag that indicated if support print on the server side.
	 */
	public static boolean isSupportedPrintOnServer = true;
	/**
	 * Get bookmark. If page exists, ignore bookmark.
	 * 
	 * @param request
	 * @return the bookemark
	 */
	public static String getBookmark( HttpServletRequest request )
	{
		int page = getParameterAsInt( request, PARAM_PAGE );
		return page < 1