Forcing parent page refresh through javascript

There are many ways to refresh the parent page from the sub-window(modal window) through javascript. Some of them are:

window.opener.document.location.href=window.opener.document.location.href;

(or)

window.parent.document.location.reload();

(or)

window.parent.document.location.href=”ParentPage.aspx” mce_href=”ParentPage.aspx”;