// TOPIC.JS

var win = null;
var isIE, isO6, isNS, isNS6;

if (document.all)
{
    isIE = 1;
    isO6 = navigator.userAgent.indexOf("Opera") != -1;
    isNS = 0;
    isNS6 = 0;
}
else if (document.getElementById)
{
    isIE = 0;
    isO6 = 0;
    isNS = 0;
    isNS6 = 1;
}
else if (document.layers)
{
    isIE = 0;
    isO6 = 0;
    isNS = 1;
    isNS6 = 0;
}
else
{
    isIE = 0;
    isO6 = 0;
    isNS = 0;
    isNS6 = 0;
}

function openWindow(url, x, y)
{
    if (win && win.open && !win.closed)
	    win.close();

    param = "toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=1,width=" + x + ",height=" + y
    win = window.open(url, "win1", param)
}