Javascript width and height in IE

hey folks, i have a function for resizing the window after login. it work fine in all browsers expect IE. the IE shows width something like 600 and trim height too. how can i fix this problem

<script type="text/javascript">
function Resize()
{
	window.open("home.php","_blank","toolbar=no","location=yes","directories=no","status=no","menubar=no","scrollbars=no","resizeable=no","copyhistory=yes, width=1280, height=800");
}
</script>

i have another question. in FF, i don’t want to display the tab and the web address bar. is there anyway i can hide those?