I have a link which opens up a new window via window.open(www.123.com). I want the new window to fade in instead of just instantly poping into view. If this is possible please let me know, any links and code samples are welcome. Thanks.
Are you talking about the "chrome" (window caption and border) or the window content?
If the latter, you can use a timer and play around with a floating div that covers the entire page. Change the opacity of the div from solid to transparent in stages. Be aware that the CSS opacity rules are currently browser-dependent as IE does not support the W3C opacity settings.