Bug 154178 Support projectFolder in BIRT viewer
If the report supports projectFolder, the viewer also need to enhance for this feature.
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/context/ViewerAttributeBean.java
paramName = getParameterName( displayTextParam );
							if ( paramName != null )
							{
								if ( this.displayTexts == null )
									this.displayTexts = new HashMap( );
								this.displayTexts.put( paramName, paramValue );
							}
							continue;
						}
						
						paramName = getParameterName( paramName );
						ScalarParameterHandle parameter = (ScalarParameterHandle) findParameter( paramName );
						
						
						if ( paramValue != null && parameter != null )
						{
							
							String typeVarName = configVar.getName( )
									+ "_" + IBirtConstants.PROP_TYPE; 
							ConfigVariable typeVar = handle
									.findConfigVariable( typeVarName );
							
							
							String dataType = null;
							if ( typeVar != null )
								dataType = typeVar.getValue( );
							
							if ( dataType == null
									|| !dataType.equalsIgnoreCase( parameter
											.getDataType( ) ) )