Bug 188502 Change labels in Export Report dialog
Can we consider changing the types in the drop down list in the Export Report dialog? doc to Word xls to Excel ppt to Powerpoint pdf to PDF postscript to PostScript
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/utility/ParameterAccessor.java
*/
	public static void setClean( HttpServletRequest request )
	{
		String isClean = getParameter( request, PARAM_CLEAN_SESSION );
		if ( "false".equalsIgnoreCase( isClean ) ) 
			isCleanSessionFiles = false;
		else if ( "true".equalsIgnoreCase( isClean ) ) 
			isCleanSessionFiles = true;
	}
	/**
	 * Check If force optimized HTML output.
	 * 
	 * @param request
	 * @return
	 */
	public static boolean isAgentStyle( HttpServletRequest request )
	{
		boolean flag = isAgentStyle;
		String urlParam = getParameter( request, PARAM_AGENTSTYLE_ENGINE );
		if ( "true".equalsIgnoreCase( urlParam ) ) 
		{
			flag = true;
		}
		else if ( "false".equalsIgnoreCase( urlParam ) ) 
		{
			flag = false;
		}
		return flag;
	}
}