string.replaceAll

/*
based on http://stackoverflow.com/questions/1144783/replacing-all-occurrences-of-a-string-in-javascript
according to http://jsperf.com/replace-all-vs-split-join/25
*/

if (!String.prototype.replaceAll)
    String.prototype.replaceAll = function (str, find, rep) {
        return str.replace(new RegExp(find.replace(/([.*+?^=!:${}()|\[\]\/\\])/g, "\\$1"), 'g'), rep); //faster for Firefox
        return str.split(find).join(rep); //faster for Chrome
    }