Works fine firefox not IE

1

i make a pop-up window. and it works fine in firefox but not in IE.
any ideas about this one. i use this code.


_root.openWinCentre = function (url, winName, w, h, toolbar, location, directories, status, menubar, scrollbars, resizable) {
   getURL ("javascript:var myWin; if(!myWin || myWin.closed){myWin = window.open('" + url + "','" + winName + "','" + "width=" + w + ",height=" + h + ",toolbar=" + toolbar + ",location=" + location + ",directories=" + directories + ",status=" + status + ",menubar=" + menubar + ",scrollbars=" + scrollbars + ",resizable=" + resizable + ",top='+((screen.height/2)-(" + h/2 + "))+',left='+((screen.width/2)-(" + w/2 + "))+'" + "')}else{myWin.focus();};void(0);");
}

    _root.openWinCentre(address, target_winName, width, height, toolbar, location, directories, status, menubar, scrollbars, resizable);*/

thanks guys.