Bug 155493 [Deploy] Pictures and chart pictures are lost when preview on Weblogic Server using WAR deploy
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/utility/ParameterAccessor.java
* The parameter name that gives the repository lication to put the created
	 * documents and report design files.
	 */
	public static final String INIT_PARAM_DOCUMENT_FOLDER = "BIRT_VIEWER_DOCUMENT_FOLDER"; 
	/**
	 * Servlet parameter name that gives the absolute resource location
	 * directory.
	 */
	public static final String INIT_PARAM_BIRT_RESOURCE_PATH = "BIRT_RESOURCE_PATH"; 
	/**
	 * Servlet parameter name that gives preview report max rows limited.
	 */
	public static final String INIT_PARAM_VIEWER_MAXROWS = "BIRT_VIEWER_MAX_ROWS"; 
	/**
	 * UTF-8 encode constants.
	 */
	public static final String UTF_8_ENCODE = "UTF-8"; 
	/**
	 * ISO-8859-1 encode constants.
	 */
	public static final String ISO_8859_1_ENCODE = "ISO-8859-1"; 
	/**
	 * Separator that connects the query parameter values.
	 */
	public static final String PARAMETER_SEPARATOR = "&"; 
	/**
	 * The character to start the query string in the url.
	 */
	public static final String QUERY_CHAR = "?"; 
	/**