Bug 313459 Problem with % when generating images in tables.
See the attached BirtProject, it has two reports. Each identical except for this difference: The image width/height is set to a %age value (50%) in one (TestImage.rptdesign) and not-set in the other (TestImageWorking.rptdesign). TestImage.rptdesign does not display the image in pdf, but works fine in html. TestImageWorking.rptdesign shows the image in both pdf and html. The %age setting seems to cause the problem in pdf format.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/nLayout/area/impl/ImageAreaLayout.java
}
				return url.substring( start, end );
			}
			else if ( url.startsWith( BOOKMARK_ANCHOR_PREFIX ) )
			{
				start = BOOKMARK_ANCHOR_PREFIX.length( );
				end = url.length( );
				return url.substring( start, end );
			}
			else if ( url.startsWith( BOOKMARK_JAVASCRIPT_PREFIX ) && url.endsWith( "')" ) )
			{
				start = BOOKMARK_JAVASCRIPT_PREFIX.length( );
				end = url.length( ) - 2;
				return url.substring( start, end );
			}
			return null;
		}
		protected void close( )
		{
			// i
			// W
			// i
			// I
			// a
			// T
			// parent.align( root );
		}
	}
}