onFocus Event not working in Netscape 7.1

[tmg]

if anyone can help me out with this i would appreciate it.

i have a splash screen where when you click a graphic a new window opens with the site. i want the splash screen window to stay in the back even when clicked. i've added an onFocus event which works perfectly in IE, but i can't get it to work in Netscape. Does anyone have any suggetions?

here is my code:

<script language="JavaScript" type="text/JavaScript">
<!--

window.onfocus=moveBack

function moveBack() {
self.blur()
}

//-->
</script>

thanks!