I need to make a little JS app to scroll automatically through a list of URLs. I've chosen to have the functionality in a pop-up, for various reasons.

The syntax to change the opening window's URL is:

```
window.opener.location.href = "http://www.example.com";

```

This works fine with one URL, but if two statements are called, only one is executed. I experimented with an alert statement between two of the above statements, and the alert event made the second statement function properly:

```
window.opener.location.href = "http://www.example1.com";
alert("hello world");
window.opener.location.href = "http://www.example2.com";

```

Question is: does anyone know how to get the first and second window.opener statements to work, without the intervening alert();? Also, how can I add a pause between the two statements, so that the second executes a couple of seconds after the first? 

Thanks so much!