I have met a strange problem on Safari 3.0:
When I use window.open function in my Javascript functions, it can open new window in some certain functions, while cannot open new window in other functions.
And then all can work on Firefox.
I don't know why this happen, thanks for all your assistance in advance.

Could this be a popup blocker effect ?

Often, window.open calls are executed when they result of a direct action from a user.
For example:

The user click on a button which calls a function with the window.open => popup opens
The user click on a button which calls a function which calls another function with window.open => no popup
The page load and a window.open is called => no popup

Could this be something like that ?

I think my problem is not a popup blocker effect. My code is like this:
function a(){
...
window.open("about:blank","","width=600");
b(param a, param b);
}
function b(param a, param b){
...
window.open("about:blank","","width=600");
}
the result is new window can open in function a, but cannot open in function b

Originally Posted by tripy

Could this be a popup blocker effect ?

Often, window.open calls are executed when they result of a direct action from a user.
For example:

The user click on a button which calls a function with the window.open => popup opens
The user click on a button which calls a function which calls another function with window.open => no popup
The page load and a window.open is called => no popup

Could this be something like that ?

Yes it is! It's exactly what I explained you on my 1st post.

The function a() is the result of a direct user action, thus the window.open is allowed.
As b() is called FROM a(), it's not a direct action thus the browser refuse to open the popup.

Oh! I got it! I misunderstand you the last time. Thank you very much, tripy

But another question is, you say the browser will refuse to open the popup which is not a direct action, then why Firefox and IE allow this kind of popup?

Every browsers act differently in this field.
IE is the most tolerant, in my view.
FireFox allows it to be fine tune via the about:config, but if it allows the popup, it's probably because the popup are allowed.
It should behave the same way than safari.

You are so prompt^_^ Thanks again!