VG Chat spam filter

Billy Club

/*******************************************************
*
* Set "var ip" to Billy's current IP
*
*
* Copy and paste all of this text into your browswer's console
*
* Firefox console: ctrl + shift + k
* Chrome: ctrl + shift + j
*
* Left-clicking doesn't work for links, you have to right click instead
*
*
*********************************************/ 

var IPS = ["71.86.193.133", "71.125.218.229"];
var REFRESH_RATE = 50;

function hideAllMessages (messages) {
	for (var i = 0; i < messages.length; i++)
		messages[i].style.visibility="hidden";
}

function getGoodMessagesHTML (messages) {
	var goodMessagesHTML = [];
	var j = 0;
	for (var i = 0; i < messages.length; i++) {
		if (goodMessagesHTML.indexOf(messages[i].innerHTML) == -1) {
			var goodMessageFlag = true;
			for (var k = 0; k < IPS.length; k++)
				if (messages[i].innerHTML.indexOf(IPS[k]) != -1)
					goodMessageFlag = false;
			if (goodMessageFlag == true)
				goodMessagesHTML[j++] = messages[i].innerHTML;
		}
	}
	return goodMessagesHTML;
}

function updateDisplayedPosts (goodMessagesHTML) {
	if (displayedPosts[0] != goodMessagesHTML[0]) {
		var i = 0;
		if (initFlag == true) { 
			while (goodMessagesHTML[i]&&displayedPosts.indexOf(goodMessagesHTML[i]) == -1) {
				displayedPosts.push(goodMessagesHTML[i]);
				i++;
			}
			initFlag = false;
		}
		else {
			while (goodMessagesHTML[i]&&displayedPosts.indexOf(goodMessagesHTML[i]) == -1) {
				displayedPosts.unshift(goodMessagesHTML[i]);
				i++;
			}
		}
	}
}

function showDisplayedPosts (messages) {
	for (var i = 0; i < messages.length; i++) {
		if (displayedPosts[i]) {
			messages[i].innerHTML = displayedPosts[i];
			messages[i].style.visibility = "visible";
		}
		else {
			messages[i].innerHTML = "Derp";
			messages[i].style.visibility = "hidden";
		}
	}
}

function trimDisplayedPosts () {
	while (displayedPosts.length > 24)
		displayedPosts.pop();
}

function main () {	
	var messages = window.frames[2].document.getElementsByTagName('b');
	hideAllMessages(messages);
	updateDisplayedPosts(getGoodMessagesHTML(messages));
	showDisplayedPosts(messages);
	trimDisplayedPosts();
}

var displayedPosts = [];
var initFlag = true;

window.document.title = "BillyClub";
window.setInterval(function () {main();}, REFRESH_RATE);