I have a popup window that opens up and let&#039;s the users select the background they want. They select a color and the popup background changes colors - and also writes the background color to a cookie for the main application to read the next time that it is refreshed (and also the next time they use the application), however I&#039;d like to change the calling (main) application&#039;s background on close of the popup, so they don&#039;t have to hit refresh.<BR><BR>I know its something like window.mainname.bgcolor=blue or something....?