User:Matttest/RemindSign.js

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/*
© CC BY-SA 3.0
Publisher: Matttest
*/
if (mw.config.get('wgNamespaceNumber') % 2 == 1 && (mw.config.get('wgAction') == "edit" || mw.config.get('wgAction') == "submit")) {  
    $(function () {
        if (!document.editform || !document.editform.wpSave || !document.editform.wpTextbox1) return;
        var oldOnclick = document.editform.wpSave.onclick;
        document.editform.wpSave.onclick = function () {
            if (oldOnclick && !oldOnclick.apply(this, arguments)) return false;
            if (document.editform.wpTextbox1.value.match(/~{3}/)) return true;
            return confirm("You haven't signed after leaving your message, save anyway？");
		};
    });
}