function show(next,id,realName){
document.forms['f2'].action="usersearchNextPage?next="+next+"&id="+id+"&realName="+encodeURI(encodeURI(realName));
document.forms['f2'].submit();
}

String realName = ServletActionContext.getRequest().getParameter("realName");
try {
realName = java.net.URLDecoder.decode(realName,"UTF-8");
} catch (UnsupportedEncodingException e1) {
e1.printStackTrace();
}