Bug 127005 Dynamic drill thru link to book mark
To create a drill thru link to a report document, user has to pre-create book marks in the target report today. But in many cases, the target report could be designed by a different report writer. And that report writer may not know what section of the report others want to link to. We shall not require the target report has pre-created book mark for other reports to link to it. We shall allow link to a report's TOC, and allow link to report based on report item ID + row id (col name, col value) For BIRT 2.1, we only need to add support of drill thru link to tarket report's TOC.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/HyperlinkBuilder.java
value = ""; 
				}
			}
			else if ( COLUMN_PARAMETER.equals( property ) )
			{
				buildParameterChoices( paramBinding.getParamName( ) );
				int index = -1;
				for ( int i = 0; i < paramterChooser.getItems( ).length; i++ )
				{
					if ( paramterChooser.getItems( )[i].equals( paramBinding
							.getParamName( ) ) )
					{
						index = i;
						break;
					}
				}
				value = new Integer( index );
			}
			return value;
		}
		public void modify( Object element, String property, Object value )
		{
			if ( element instanceof Item )
			{
				element = ( (Item) element ).getData( );
			}
			ParamBinding paramBinding = ( (ParamBinding) element );
			if ( COLUMN_VALUE.equals( property ) )
			{
				paramBinding.setExpression( (String) value );