function changeimage(towhat){
if (document.images){
document.images.product.src=towhat
}
}
function popBimg(imgsrc) {
var bimgsrc = imgsrc.replace(/\/([A-Za-z0-9_-]+.jpg)/, "/b-$1")
var x = window.open("about:blank","abc","toolbar=0,location=0,statusbar=0,menubar=0,resizable=1,scrollbars=1,width=610,height=535")
x.document.write("<html><body><center><a href='javascript: window.close();'><font face=verdana size=1>close window<\/font><\/a><br><br><img src=" + bimgsrc + "><\/center><\/body><\/html>")
x.document.close()
x.window.focus()
}

