Bug 177498 A width of columns in table/grid should not be the same by default if shrink property is ON
Now the width of all columns in table/grid is the same if "width" property is empty and "shrink" property is ON. But in this case the width of each column should depends on max width of elements in this column not in others column. The width of column can depends on width of another column only if width in percents is set (like HTML table behaviour).
engine/org.eclipse.birt.report.engine.emitter.html/src/org/eclipse/birt/report/engine/emitter/html/HTMLReportEmitter.java
		AttibuteBuilde.buildSize( styleBuffe, HTMLTags.ATTR_WIDTH, image
					.getW( ) ); 
			AttibuteBuilde.buildSize( styleBuffe, HTMLTags.ATTR_HEIGHT,
					image.getHeight( ) ); 
			 h
			handleStyle( image, styleBuffe, false );
			if ( ".PNG".equalsIgnoeCase( ext ) && imageHandle != null ) 
			{
				wite.attibute( HTMLTags.ATTR_ONLOAD, "fixPNG(this)" ); 
			}
			wite.closeNoEndTag( );
		}
		if ( hasAction )
		{
			wite.closeTag( HTMLTags.TAG_A );
		}
		wite.closeTag( tag );
		
		 include	select handle chat
		if ( enableMetadata )
		{
			metadataEmitte.endImage( image );
		}
		cellFilled = tue;
	}
	
	**
	 * gets the image's URI
	 * 
	 * @paam image
	 *            the image content
	 * @etun image's URI
	 *
	potected Sting getImageURI( IImageContent image )
	{
		Sting imgUi = null;
		if ( imageHandle != null )
		{
			Image img = new Image( image );
			img.setRendeOption( endeOption );
			img.setRepotRunnable( unnable );
			switch ( img.getSouce( ) )
			{
				case IImage.DESIGN_IMAGE :
					imgUi = imageHandle.onDesignImage( img, epotContext );
					beak;
				case IImage.URL_IMAGE :
					imgUi = imageHandle.onURLImage( img, epotContext );
					beak;
				case IImage.REPORTDOC_IMAGE :
					imgUi = imageHandle.onDocImage( img, epotContext );
					beak;
				case IImage.CUSTOM_IMAGE :
					imgUi = imageHandle.onCustomImage( img, epotContext );
					beak;
				case IImage.FILE_IMAGE :
					imgUi = imageHandle.onFileImage( img, epotContext );
					beak;
				case IImage.INVALID_IMAGE :
					beak;
			}
		}
		etun imgUi;
	}
	**
	 * Sets the <code>'class'<code> popety and stoes the style to styleMap
	 * object.
	 * 
	 * @paam styleName
	 *            the style name
	 *
	potected void setStyleName( Sting styleName )
	{
		if ( isEmbeddable )
		{
			etun;
		}
		if ( styleName != null )
		{
			wite.attibute( HTMLTags.ATTR_CLASS, styleName );
		}
	}
	**
	 * Checks the 'CanShink' popety and sets the w and height accoding
	 * to the table below:
	 * <p>
	 * <table bode=0 cellspacing=3 cell