// JavaScript Document
<!--

// POPUP

var isNav4, isIE4, isMac;
if (parseInt(navigator.appVersion.charAt(0)) >= 4) {
isNav4 = (navigator.appName == "Netscape") ? true : false
isNav6 = (navigator.appName == "Netscape" && parseInt(navigator.appVersion) == 5) ? true : false
isIE4 = (navigator.appName.indexOf("Microsoft") != -1) ? true : false
isMac = (navigator.platform.indexOf("Mac") != -1) ? true : false
}


function popup(url, winWidth, winHeight) {
if (isNav4 || isIE4) {
var screenPosX,screenPosY;
screenPosX = (screen.availWidth - winWidth) / 2;
screenPosY = (screen.availHeight - winHeight) / 2; 

if (isNav4 || isNav6) { 
window.open(url, 'subwin','toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=0, copyhistory=0,width='+winWidth+',height='+winHeight+',screenX='+screenPosX+',screenY='+screenPosY+'' );
}

if (isIE4) {
newwin = window.open(url, 'subwin','toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=0, copyhistory=0,width='+winWidth+',height='+winHeight+',left='+screenPosX+',top='+screenPosY+''); 
}
}

else {
window.open(url, 'subwin','toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=0, copyhistory=0,width='+winWidth+',height='+winHeight+'');
}
}
//-->