I have a web application using struts,it runs well.

Now I write a portlet that do as struts action do,and return to the same page,with the same attribute value, generate almost the same HTML and js(use ext).

but in the portlet,nothing I can see,though there is no errors.

in the jsp page,there is a Ext.onReady method which charge layout .

I guess,the reason maybe is there are more than one tag in the portal page .

can any one give some advice?
thanks in advance