Could you do something like this;
(from inc header.asp)
Response.Write "<script language=""JavaScript"" type=""text/javascript"">" & vbNewLine & _
"<!-- hide from JavaScript-challenged browsers" & vbNewLine & _
"function openWindow(url) {" & vbNewLine & _
"var memberUsername = '" & strUsername & "';" & vbNewLine & _
" popupWin = window.open(url,'new_page','width=400,height=400')" & vbNewLine & _
"}" & vbNewLine & _
"function openWindow2(url) {" & vbNewLine & _
" popupWin = window.open(url,'new_page','width=400,height=450')" & vbNewLine & _
"}" & vbNewLine & _
"function openWindow3(url) {" & vbNewLine & _
" popupWin = window.open(url,'new_page','width=400,height=450,scrollbars=yes')" & vbNewLine & _
"}" & vbNewLine & _
"function openWindow4(url) {" & vbNewLine & _
" popupWin = window.open(url,'new_page','width=400,height=525')" & vbNewLine & _
"}" & vbNewLine & _
"function openWindow5(url) {" & vbNewLine & _
" popupWin = window.open(url,'new_page','width=450,height=525,scrollbars=yes,toolbars=yes,menubar=yes,resizable=yes')" & vbNewLine & _
"}" & vbNewLine & _
"function openWindow6(url) {" & vbNewLine & _
" popupWin = window.open(url,'new_page','width=500,height=450,scrollbars=yes')" & vbNewLine & _
"}" & vbNewLine & _
"function openWindowHelp(url) {" & vbNewLine & _
" popupWin = window.open(url,'new_page','width=470,height=200,scrollbars=yes')" & vbNewLine & _
"}" & vbNewLine & _
"// done hiding -->" & vbNewLine & _
"</script>" & vbNewLine & _