I wanted to navigate to the browsers back page (History) onclick of Back button. How I can achieve this usign zul page? I have one option of keeping the hidden field and redirect via composer or using zk's if condition. But any other solution like javascripts function are?
You can use client side javascript in combination with Java Script's history object:
<zk xmlns="http://www.zkoss.org/2005/zul">
<div>
<button label='back'
xmlns:w="client"
w:onClick="history.back();"
/>
</div>
</zk>