khrome

if(!String.regexEncode){
    String.regexChars = ['\\', '&','^', '$', '*', '+', '?', '.', '(', ')', '|', '{', '}', '[', ']'];
    String.regexEncodeRegexObject = new RegExp('([\\'+String.regexChars.join('|\\')+'])', 'g');
    String.implement({
        regexEncode : function(){
            return this.replace(String.regexEncodeRegexObject, '\\$1');
        }
    });
}

khrome

if(!Function.actionTimeout) Function.actionTimeout = 16384;
if(!Function.whenTrue){
    Function.implement({
        whenTrue : function(actionFunction, args, delayFunction, timeoutFunction, timeout, counter){
            if(!timeout) timeout = Function.actionTimeout;
            if(!counter) counter = 0;
            if(!timeoutFunction) timeoutFunction = function(event){
                throw('Condition not met after '+event.time+'ms');
            };
            var result = this();

khrome

if(!Element.siblingsBefore){
    Element.implement({
        siblingsBefore : function(){
            var results = [];
            var found = false;
            this.getParent().getChildren().each(function(child){
                if(this == child) found = true;
                if(!found) results.push(child);
            });
            return new Elements(results);