var buzzwords = new Array ("Aggregate",	
	"Ajax",
	"API",
	"Bandwidth",
	"Beta",
	"Bleeding edge",
	"Convergence",
	"Design pattern",
	"Disruptive",
	"DRM",
	"Enterprise",
	"Facilitate",
	"Folksonomy",
	"Framework",
	"Impact",
	"Innovate",
	"Long tail",
	"Mashup",
	"Microformats",
	"Mobile",
	"Monetize",
	"Open social",
	"Paradigm",
	"Podcast",
	"Proactive",
	"Rails",
	"Scalable",
	"Social bookmarks",
	"Social graph",
	"Social software",
	"Spam",
	"Synergy",
	"Tagging",
	"Tipping point",
	"Truthiness",
	"User-generated",
	"Vlog",
	"Webinar",
	"Wiki",
	"Workflow"
);

var usedWords;
window.onload = initAll;

function initAll() {
	if (document.getElementById) {
		document.getElementById("reload").onclick = anotherCard;
		usedWords = new Array(buzzwords.length);
		// Hack to only do things if IE or not IE
		if (!document.getElementById("IEroot")) {
			setFree();
		}
		newCard();
	}
	else {
		alert("Sorry, your browser doesn't support this script");
	}
}

function newCard() {
	for (var i=0; i<24; i++) {
		setSquare(i);
	}
}

function setSquare(thisSquare) {
	do {
		var randomWord = Math.floor((Math.random() * buzzwords.length));
	}
	while (usedWords[randomWord]);

	usedWords[randomWord] = true;
	var currSquare = "square" + thisSquare;
	document.getElementById(currSquare).innerHTML = buzzwords[randomWord];
	document.getElementById(currSquare).className = "";
	document.getElementById(currSquare).onmousedown = toggleColor;
}

function anotherCard() {
	for (var i=0; i<buzzwords.length; i++) {
		usedWords[i] = false;
	}
	newCard();
	return false;
}

function toggleColor(evt) {
	var thisSquare = (evt) ? evt.target : window.event.srcElement;
	thisSquare.className = (thisSquare.className == "") ? "pickedBG" : "";
	checkWin();
}

function checkWin() {
	var winningOption = -1;
	var setSquares = 0;
	var winners = new Array(31,992,15360,507904,541729,557328,1083458,2162820,4329736,8519745,8659472,16252928);

	for (var i=0; i<24; i++) {
		var currSquare = "square" + i;
		if (document.getElementById(currSquare).className != "") {
			document.getElementById(currSquare).className = "pickedBG";
			setSquares = setSquares | Math.pow(2,i);
		}
	}

	for (var i=0; i<winners.length; i++) {
		if ((winners[i] & setSquares) == winners[i]) {
			winningOption = i;
		}
	}
	
	if (winningOption > -1) {
		for (var i=0; i<24; i++) {
			if (winners[winningOption] & Math.pow(2,i)) {
				currSquare = "square" + i;
				document.getElementById(currSquare).className = "winningBG";
			}
		}
	}
}

function setFree() {
}