Bug 166931 Include double quotation in title of viewer tag will cause blank page.[0603]
Description: Include double quotation in title of viewer tag will cause blank page. Build number: 2.2.0.v20061206 Steps to reproduce: 1. New a BIRT Web project. 2. New a jsp file based on birt template, input below content in body: <birt:viewer id="0" name="first sample" title="first &quot; report &quot; title" reportDesign="birt_tag_sample.rptdesign" > </birt:viewer> 3. Run the project to see the jsp file. Expected result: Report displays with title first"report" title. Actual result: Blank page with nothing showed. Error log:N/A
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/utility/ParameterAccessor.java
* @param request
	 * @return
	 */
	public static boolean isOverwrite( HttpServletRequest request )
	{
		boolean overwrite = isOverWrite;
		String urlParam = getParameter( request, PARAM_OVERWRITE );
		if ( "true".equalsIgnoreCase( urlParam ) ) 
		{
			overwrite = true;
		}
		else if ( "false".equalsIgnoreCase( urlParam ) ) 
		{
			overwrite = false;
		}
		return overwrite;
	}
	/***************************************************************************
	 * protected routines
	 **************************************************************************/
	/**
	 * Checks if a given file name is a relative path.
	 * 
	 * @param fileName
	 *            The file name.
	 * @return A <code>boolean</code> value indicating if the file name is a
	 *         relative path or not.
	 */
	public static boolean isRelativePath( String fileName )
	{