Bug 113938 Report is marked dirty when open/close cascading parameter dialog without doing any operation on it
description: Report is marked dirty when open/close cascading parameter dialog without doing any operation on it steps to reproduce: 1.new a cascading parameter group 2.save the reprot 3.double click the cascading parameter to bring out edit box 4.click OK to close edit box actual result: Report has been marked dirty expected result: No dirty marked for that no operations done in edit parameter dialog
UI/org.eclipse.birt.report.designer.core/src/org/eclipse/birt/report/designer/util/DEUtil.java
* @return RGB value.
	 */
	public static RGB getRGBValue( String val )
	{
		if ( val != null )
		{
			if ( val.startsWith( "#" ) ) 
			{
				int rgb = ColorUtil.parseColor( val );
				if ( rgb != -1 )
				{
					return getRGBValue( rgb );
				}
			}
			else
			{
				String[] ss = val.split( "," ); 
				if ( ss.length == 3 )
				{
					try
					{
						int r = Integer.parseInt( ss[0] );
						int g = Integer.parseInt( ss[1] );
						int b = Integer.parseInt( ss[2] );
						return new RGB( r, g, b );
					}
					catch ( NumberFormatException e )
					{
						return null;
					}