Tiny javascript snippet/file to overwrite how alert usually works by forcing it to behave like console.log when possible.

goodalert.js

/**
 * Overwrites the old alert method and chooses to use console.log instead (if it's 
 * available).
 * Author: Jason Feinstein
 */
var oldAlert = alert;
alert = function(){
    if(window.console != null){
        console.log.apply(null, arguments);
    } else {
        oldAlert.apply(null, arguments);
    }
};