使用cookies，javascript，html将registartion表单值转换为另一个html页面？

I am trying to display the data values from one html page to another html page using cookies and JavaScript. When I am using the "Method=Get",Url shows the values of registration page in "details.html" in browser. But when I try "Method=POST" I am not able to display the values in "details.htm" by using cookies and JavaScript.I am trying to display the data values from one