I searched and finaly made this, that works fineeee:
String.prototype.allReplace = function (obj) {
var retStr = this;
for (var x in obj) {
retStr = retStr.replace(new RegExp(x,
'g'), obj[x]);
}
return retStr;
};
$("*").each(function () {
var el = $(this);
if (el.children().length == 0) {
el.text(el.text().allReplace({ "0":
"a", "1": "b", "2": "c"}));
}
});