Bug 134444 Locale setting lost when change current page with internal bookmark
Description: Locale setting lost when change current page with internal bookmark Steps to reproduce: 1. Insert two labels 2. Add bookmark in the first label 3. In the second label,set internal bookmark link to the first label, set page-break-before to always. 4. In preference, set Locale to a different locale. 5. Preview in Web Viewer, go to the second page and click the link. Expected result: Locale setting in webaddress keeps unchanged. Actual result: After click the link, Locale setting lost in webaddress.
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/service/ReportEngineService.java
IScalarParameterDefn parameterObj = (IScalarParameterDefn) iter
					.next( );
			
			
			String parameterName = parameterObj.getName( );
			Object parameterValue = parameters.get( parameterName );
			if ( parameterObj.isHidden( ) )
			{
				continue;
			}
			if ( parameterValue == null && !parameterObj.allowNull( ) )
			{
				missingParameter = true;
				break;
			}
			if ( IScalarParameterDefn.TYPE_STRING == parameterObj.getDataType( ) )
			{
				String parameterStringValue = (String) parameterValue;
				if ( parameterStringValue != null
						&& parameterStringValue.length( ) <= 0
						&& !parameterObj.allowBlank( ) )
				{
					missingParameter = true;
					break;
				}
			}
		}
		return missingParameter;
	}
	/**