Bug 153537 Event Handler didn't work properly in masterpage
Steps to reproduce: 1.Run the attached report in Web Viewer, it works well 2.Click "print" to convert the output in PDF Expected result: Masterpage has the same view in Web Viewer and PDF Actual result: Masterpage didn't get right view
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/executor/ExecutionContext.java
if ( parameter != null )
		{
			return ( (ParameterAttribute) parameter ).getValue( );
		}
		return null;		
	}
	public Map getParameterValues( )
	{
		HashMap result = new HashMap( );
		Set entries = params.entrySet( );
		Iterator iterator = entries.iterator( );
		while ( iterator.hasNext( ) )
		{
			Map.Entry entry = (Map.Entry) iterator.next( );
			ParameterAttribute parameter = (ParameterAttribute) entry
					.getValue( );
			result.put( entry.getKey( ), parameter.getValue( ) );
		}
		return result;
	}
	public String getParameterDisplayText( String name )
	{
		Object parameter = params.get( name );
		if ( parameter != null )
		{
			return ( (ParameterAttribute) parameter ).getDisplayText( );
		}
		return null;		
	}