code: public void setVspace(String vspace) {
          _imageState.registerAttribute(AbstractHtmlState.ATTR_GENERAL, HtmlConstants.VSPACE, vspace);
      }
docs: Sets the vertical spacing around the HTML image tag.
  
  @param vspace the vertical spacing.
  @jsptagref.attributedescription The vertical spacing around the HTML image tag.
  @jsptagref.attributesyntaxvalue <i>string_vspace</i>
  @netui:attribute required="false" rtexprvalue="true"
  description="The vertical spacing around the HTML image tag."