view.jsp

<%@ taglib uri="http://java.sun.com/portlet_2_0" prefix="portlet" %>
<%@ page import="com.liferay.portal.kernel.portlet.LiferayWindowState" %>



<div id="<portlet:namespace />soaPortletDiv">
<form
action="<portlet:actionURL/>"
method="post"
name="<portlet:namespace />fm"
id="<portlet:namespace />fm">

  <textarea name="<portlet:namespace />msg" id="<portlet:namespace />msg"></textarea>
  <input type="submit" name="<portlet:namespace />sm" value="SOS!" />
</form>
</div>

<script type="text/javascript">
jQuery(document).ready(function(){

    var <portlet:namespace/>form = jQuery('#'+'<portlet:namespace />fm');

    <portlet:namespace/>form.bind("submit",function(event){
      event.preventDefault();
      var inputs = jQuery("textarea", <portlet:namespace/>form);
      var url = '<portlet:actionURL windowState="<%= LiferayWindowState.EXCLUSIVE.toString() %>"/>' + "&" + inputs.serialize(); // see note below
      jQuery('#<portlet:namespace />soaPortletDiv').load(url);
    });

});
</script>