My stupid signature for littlewhitey's forum, which confuses the hell out of people.

sig.src.js

/**
 * blewert 
 * -----
 * sig.src.js
*/

//Find the element containing the name of the person
var greetings = document.getElementsByClassName("greeting");
var username = "";

if(typeof(greetings) === "undefined" || greetings.length === 0)
{
	//If we cannot find it, or it doesn't exist, then find existing instances of signatures on one page
	var sigs = document.getElementsByClassName("blew-sig");
	
	for(var sig in sigs)
	{
		//Run through them and set them to "I love [JOKER]SKY"
		if(typeof sigs[sig] === "object")
			sigs[sig].textContent = "I love [JOKER]SKY";
	}
}
else
{
	//Remove "Hello"
	username = greetings[0].textContent.replace("Hello ", "");
	
	//Get all signatures again
	var sigs = document.getElementsByClassName("blew-sig");
	
	//Are they a guest? If so, show default text
	if(username === "Guest")
		username = "[JOKER]SKY";
		
	for(var sig in sigs)
	{
		//Run through all signatures and set content to a random signature otherwise
		if(typeof sigs[sig] === "object")
			sigs[sig].textContent = randomSignature();
	}
}

function randomSignature()
{
	//A bunch of random signatures
	var randSigs = 
	[ 
		username + " sucks", username + " is a noob", username + " is ez", username + " is easy",
		username + "?", username + "? you there?", "I wish " + username + " was here.", username + "!",
		username + "..."
	];

	//Just return a random one
	return randSigs[Math.floor(Math.random() * randSigs.length)];
}

//Print out a message
console.log("blewert was here! (" + (new Date()).toGMTString() + ")");