(function () { // function wrapper for Opera


var pics = document.evaluate(
    "//a[contains(@href, '.blogger.com/')]",
    document,
    null,
    XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE,
    null);


var img, link, matchesLink, matchesImg,
    regexp = /^http:\/\/bp\d\.blogger\.com\/[^\/]+\/[^\/]+\/[^\/]+\/([^\/]+)\/([^\/]+)\/.+$/;

for (var i = 0; i < pics.snapshotLength; i++) {
    link = pics.snapshotItem(i);
    matchesLink = link.href.match(regexp);
    if (matchesLink) {
        if (matchesLink[2].search(/-R/) > -1) {
		alert(link.firstChild.src);
            matchesImg = link.firstChild.src.match(regexp);
            if (matchesImg != null) {
                link.href = link.href.replace(new RegExp(matchesLink[1]),
                    matchesImg[1]);
                link.href = link.href.replace(/\/s\d+-R\//, "/s1600-h/");
            }
        } else {
            if (matchesLink[0].search(/\/s\d+\//) > -1) {
                link.href = link.href.replace(/\/s\d+\//, "/s1600-h/");
            }
        }
    }
}

})();