Resizing popups

[chris1977uk]

i have an ASP page, lets call it parent

it has a javascript link in it:
a href="javascript: popup('image')"

this calls the following function:

function popup(image){
window.open('popup.asp?image=' + image,'read','width=500, height=400, toolbars=no, scrollbars=yes')
}

/script

with me so far?????

it works, no problem, popup.asp pops up with the correct image in it.
What i want to do and have seen done, but can't do it myself is get the popup.asp page to resize the popup its in to be the size of the image, plus a 10pixel border all around it.

any ideas??

[chris1977uk]

have no fear, its solved