ChatJS

var d = new Date();
var time = d.getTime() + 2500;
addMessageEvent(function(messageElement)
{
    readPersistent("alertthing", function(value){
        var user=["mycraft", "mycraftisbest"]; //change to alerted words (lowercase)
        //if one contains the other, put it 2nd EX: user["name","fullname","longestname","fullnamelongestname"]
        var i;
        var a = 1;
        var date = new Date();
        var dt = date.getTime();
        var messageContent = messageElement.querySelector("message-part");
        var noHTML = messageContent.innerHTML;
        var messagei = new RegExp(noHTML,"i");

        var emote = "༼☉ɷ⊙༽"
        var emotei = new RegExp("NotLikeThis","i");
        messageContent.innerHTML = messageContent.innerHTML.replace(emotei, emote);




        for (i = 0; i < user.length; i++) {
             if(messageContent && (messageContent.dataset.encoding === "text" || messageContent.dataset.encoding === "markdown") && noHTML.toLowerCase().includes(user[i])){
                var substr = noHTML.substring(noHTML.toLowerCase().indexOf(user[i]), noHTML.toLowerCase().indexOf(user[i])+user[i].length);
                var useri = new RegExp(substr,"i");
                messageContent.innerHTML = "<span style='background-color:red;color:white'>"+noHTML+"</span>";
                messageContent.innerHTML = messageContent.innerHTML.replace(useri, "<span style='background-color:red;color:yellow'>"+substr+"</span>");
                if( time < dt && value == 1 && a == 1){
                    alert("Someone just called you!");
                }
                a = 0;
               }
             }
    });
});

commands.push(new Command("alerts", function()
{
    readPersistent("alertthing", function(value)
    {
        if (value=="0"){
            writePersistent("alertthing", "1");
            systemMessage("You have enabled alert boxes!" );
        }
        else{
            writePersistent("alertthing", "0");
            systemMessage("You have disabled alert boxes!" );
        }
    });
}));