// convert all characters to lowercase to simplify testing
    var agt=navigator.userAgent.toLowerCase();

    // *** BROWSER VERSION ***
    // Note: On IE5, these return 4, so use is_ie5up to detect IE5.
    var is_major = parseInt(navigator.appVersion);
    var is_minor = parseFloat(navigator.appVersion);

    // Note: Opera and WebTV spoof Navigator.  We do strict client detection.
    // If you want to allow spoofing, take out the tests for opera and webtv.
    var is_nav  = ((agt.indexOf('mozilla')!=-1) && (agt.indexOf('spoofer')==-1)
                && (agt.indexOf('compatible') == -1) && (agt.indexOf('opera')==-1)
                && (agt.indexOf('webtv')==-1) && (agt.indexOf('hotjava')==-1));

    var is_nav6up = (is_nav && (is_major >= 5));

//--> end hide JavaScript

if ((navigator.appName == 'Netscape')&&(!is_nav6up)){

location.href = '/defaultns.htm';
}

function popupwindow(argURL,width,height,scrollbar,resize) {

	var screenw = screen.availWidth;
	var screenh = screen.availHeight;

	var leftPos = (screenw-width)/2; 
	var topPos = (screenh-height)/2;

	var agt=navigator.userAgent.toLowerCase();

	var is_major = parseInt(navigator.appVersion);
	var is_minor = parseFloat(navigator.appVersion);

	var is_nav  = ((agt.indexOf('mozilla')!=-1) && (agt.indexOf('spoofer')==-1)
		&& (agt.indexOf('compatible') == -1) && (agt.indexOf('opera')==-1)
		&& (agt.indexOf('webtv')==-1));

	var is_ie   = (agt.indexOf("msie") != -1);
	var is_ie3  = (is_ie && (is_major < 4));
	var is_ie4  = (is_ie && (is_major == 4) && (agt.indexOf("msie 5")==-1) );
	var is_ie5up  = (is_ie  && !is_ie3 && !is_ie4);

	var is_mac    = (agt.indexOf("mac")!=-1);

	if (is_mac)
	{
	displaypopup = window.open(argURL,'Display','resizable='+resize+',scrollbars='+scrollbar+',width='+width+',height='+height+',left='+leftPos+',top='+topPos+',toolbar=no');
	}
	else if (!is_nav && !is_ie5up)
	{
	displaypopup = window.open(argURL,'Display','resizable='+resize+',scrollbars='+scrollbar+',width='+width+',height='+height+',left='+leftPos+',top='+topPos+',toolbar=no');
	}
	else
	{
	displaypopup = window.open("",'Display','resizable='+resize+',scrollbars='+scrollbar+',width='+width+',height='+height+',left='+leftPos+',top='+topPos+',toolbar=no');
	displaypopup.close();
	displaypopup = window.open(argURL,'Display','resizable='+resize+',scrollbars='+scrollbar+',width='+width+',height='+height+',left='+leftPos+',top='+topPos+',toolbar=no');
	displaypopup.focus();
	}
}