1:

window.open(url, winName, features);

1:

window.close('Fenstername')

1: 
2: 
3: 
4: 
5: 
6: 
7: 
8: 
9: 
10: 
11: 
12: 
13: 
14: 
15: 
16: 
17: 
18: 
19: 
20:

<script language="JavaScript">
<!--

function pop_up(url, winName, features){
    bitch = window.open(url, winName, features);
}

function changer(){
    bitch.location.href = 'main_win.html';
}
//-->
</script>

und dann halt zwei links:

<a href="javascript:pop_up('popper.html','popper','width=695,height=442')">pop up!</a>

<a href="javascript:changer()">redirect popper win</a>