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
{
	
	/**
	 * URL parameter name that specifies the viewer id.
	 */
	public static final String PARAM_ID = "__id"; 
	/**
	 * URL parameter name that specifies the report title.
	 */
	public static final String PARAM_TITLE = "__title"; 
	/**
	 * URL parameter name that specifies whether show the report title.
	 */
	public static final String PARAM_SHOW_TITLE = "__showtitle"; 
	/**
	 * URL parameter name that specifies whether show the toolbar.
	 */
	public static final String PARAM_TOOLBAR = "__toolbar"; 
	/**
	 * URL parameter name that specifies whether show the navigationbar.
	 */
	public static final String PARAM_NAVIGATIONBAR = "__navigationbar"; 
	/**
	 * URL parameter name that specifies whether force prompting the parameter
	 * dialog.
	 */