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function replace() { 
    document.forms["editform"].wpTextbox1.value = document.forms["editform"].wpTextbox1.value.replace(/\[\[Dustin Brown/g, "[[Dustin Brown (ice hockey)");
    document.forms["editform"].wpSummary.value = "update link - was to a disambiguation page";
    document.forms["editform"].wpWatchthis.checked = false;
    document.forms["editform"].submit();
}
 
$(function() {
    if(location.href.search(/[\?\&]action\=edit/) != -1) mw.util.addPortletLink("p-tb", "javascript:replace()", "Text replacer", "t-replacetext");
});