function getSearchRange( isDefault )
		{
			var searchRange,
				sel = editor.getSelection(),
				body = editor.document.getBody();
			if ( sel && !isDefault )
			{
				searchRange = sel.getRanges()[ 0 ].clone();
				searchRange.collapse( true );
			}
			else
			{
				searchRange = new CKEDITOR.dom.range();
				searchRange.setStartAt( body, CKEDITOR.POSITION_AFTER_START );
			}
			searchRange.setEndAt( body, CKEDITOR.POSITION_BEFORE_END );
			return searchRange;
		}
The range in which find/replace happened, receive from user
selection prior.