Added script using Liferay to generate a Portlet URL dynamically depending on the clicked button

dynamicButtonURL.jsp

<aui:button value="Button 1" name="button1" 
    onClick='<%=renderResponse.getNamespace() + "getButtonId(1);"%>'/>

<aui:button value="Button 2" name="button2" 
    onClick='<%=renderResponse.getNamespace() + "getButtonId(2);"%>'/>

<aui:button value="Button 3" name="button3" 
    onClick='<%=renderResponse.getNamespace() + "getButtonId(3);"%>'/>

<aui:button value="Button 4" name="button4" 
    onClick='<%=renderResponse.getNamespace() + "getButtonId(4);"%>'/>

<aui:script use="liferay-portlet-url">
Liferay.provide(
  window,
  '<portlet:namespace/>getButtonId',
  function(id) {
    var renderURL = Liferay.PortletURL.createRenderURL();
    renderURL .setPortletMode("view");
    renderURL .setWindowState("normal");
    renderURL .setPortletId("portletProject_WAR_myPortlet");
    renderURL.setParameter("page","new_page");
    renderURL.setParameter("buttonId",id);
    
    window.location.href = renderURL.toString();
   }
  );
</aui:script>