Here describes an ASP.NET popup control. This control imitates MSN Messenger alert, but it is designed for use in a web page. Graphical appearance of this control can be completely changed by using one of the predefined styles or by modifying all colors used on the control. The control supports Drag&Drop, so a user can move the control on the page, where he wants.
A very important feature of this control is, that it can be used on most of the current browsers. It is tested with latest version of Mozilla, Internet Explorer and Opera. The look of the control is different on browsers that don't support filters (filters are supported only in newer versions of MSIE). You can also use HTML in a lot of control properties, so you can get the popup with an icon or anything you want.