A few years ago I made it so on my tools page http://www.visibilityinherit.com/web-design-tools.php when you use the search function in pops up a window on the same page. FYI - it doesn't look like its a popup but it is I just positioned it pixel perfect in place. You can move the window (top bar) to see it is indeed a popup window.

My question? When I try and add this same search function to the other pages of my site the results open in another window - not the same window as I want. For the life of me I can't figure out how I did it. Lol. I've search high and low. I also see no settings in the search widgets parent site. I realize that may be a bit hard to find, but I'm hoping one of you has some magical debugging app. Thanks.