var launchSlideShowX = (screen.width/2)-190;
var launchSlideShowY = (screen.height/2)- 200;
var pos = "left="+launchSlideShowX+",top="+launchSlideShowY;
function launchSlideShow(){
launchSlideShowWindow = window.open("slideshow_favorites.htm","SlideShow","width=380,height=420,"+pos);}