Bug 206864 Error in IE using nested birt tags when reportContainer is IFrame
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/taglib/AbstractViewerTag.java
{
			return false;
		}
		
		this.locale = BirtTagUtil.getLocale( (HttpServletRequest) pageContext
				.getRequest( ), viewer.getLocale( ) );
		
		BirtResources.setLocale( this.locale );
		
		if ( viewer.getId( ) == null || viewer.getId( ).length( ) <= 0 )
		{
			throw new JspTagException( BirtResources
					.getMessage( ResourceConstants.TAGLIB_NO_ATTR_ID ) );
		}
		if ( !__validateViewerId( ) )
		{
			throw new JspTagException( BirtResources
					.getMessage( ResourceConstants.TAGLIB_INVALID_ATTR_ID ) );
		}
		
		if ( pageContext.findAttribute( viewer.getId( ) ) != null )
		{
			throw new JspTagException( BirtResources
					.getMessage( ResourceConstants.TAGLIB_ATTR_ID_DUPLICATE ) );
		}
		
		if ( viewer.getReportDesign( ) == null
				&& viewer.getReportDocument( ) == null )
		{
			throw new JspTagException( BirtResources