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function externISBN() {
var magicURL = "http://www.amazon.com/exec/obidos/ASIN/MAGICNUMBER";
var magicRegex = /MAGICNUMBER/ig;
if(wgPageName != "Special:Booksources" && wgPageName != "Wikipedia:Book_sources"){
for (var i = 0; i < document.links.length; i++)
{
if( document.links[i].href.match(/isbn=(.*)/) ) {
document.links[i].href=magicURL.replace(magicRegex, RegExp.$1);
}
}
}
}
$(externISBN);
var book_source_URL = "http://www.amazon.com/gp/s?search-alias=stripbooks&field-isbn=MAGICNUMBER";
importScript('User:Lunchboxhero/externISBN.js');