I am using the iframe and created four frames in homePage.jsp like this...
<body>
<iframe name="headerContent" src="pages/header.jsp" class="headerStyle" scrolling=no frameborder=0 marginwidth=0 marginheight=0></iframe>
<iframe name="menuContent" src="pages/menu.jsp" class="menuStyle" scrolling=no frameborder=0 marginwidth=0 marginheight=0></iframe>
<iframe name="menuContent2" src="pages/content.jsp" class="contentStyle" scrolling=no frameborder=0 marginwidth=0 marginheight=0></iframe>
<iframe name="footerContent" src="pages/footer.jsp" class="footerStyle" scrolling=no frameborder=0 marginwidth=0 marginheight=0></iframe>
</body>
and have a menu.jsp which contains 4 links and when i click on one link and in href tag i am calling the action(which is defined in struts.xml) and this action is calling a class which is returning some data and on the SUCCESS it is forwarding to a CUSTOMERMAIN.jsp file but beacuse of iframe it is not displaying any jsp file.
If i don't use the iframe ..it is working fine and displaying the jsps properly....