获得iframe javascript的第一个父级

Question

I have a iframe inside test.aspx,when the user click on a pay button inside the Iframe,the iframe redirct to check.aspx that has same iframe

if payment was success on first time, then window.parent.location.href==test.aspx

if payment was failed the iframe redirect again to check.aspx,so now the

window.parent.location.href==check.aspx

while the payement was failed the the iframe keep redirect to check.aspx and the parent location keep changing ,so for example if the client failed 3 time,inside check.aspx I need to do window.parent.parent.parent.location.href to get test.aspx redirect.

when the user payment was success ,then I want to redirect the test.aspx but I can't know how much child iframe window he has!

I need something like

window.parent[0].location.href=success.aspx,so I will be able to redirect the first father window.

Thanks for any Help

Baaroz

Answer 1

You can always get to the top window in JavaScript by using

window.top.location.href

For more info see: Difference between window.location.href and top.location.href

Answer 2

You can use:

window.top.location.href

or:

var par = window.parent;
while ( par.parent ) {
    par = par.parent;
}

//par === window.top