/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");

/**** 
* Classes
****/ 
// StockRow: A row in the stock table, with price, holdings, buy/sell buttons
var StockRow = Container.expand(function () {
	var self = Container.call(this);
	// Properties
	self.companyIndex = 0; // 0-9
	self.companyName = '';
	self.colorId = '';
	self.price = 0;
	self.holdings = 0;
	self.lastPrice = 0;
	// UI elements
	var yPad = 0;
	// Stock icon
	var icon = self.attachAsset(self.colorId, {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 80,
		y: 60 + yPad,
		scaleX: 0.7,
		scaleY: 0.7
	});
	// Company name
	var nameTxt = new Text2(self.companyName, {
		size: 48,
		fill: 0xFFFFFF
	});
	nameTxt.x = 160;
	nameTxt.y = 30 + yPad;
	nameTxt.anchor.set(0, 0);
	self.addChild(nameTxt);
	// Price text
	var priceTxt = new Text2('', {
		size: 48,
		fill: 0xF1C40F
	});
	priceTxt.x = 500;
	priceTxt.y = 30 + yPad;
	priceTxt.anchor.set(0, 0);
	self.addChild(priceTxt);
	// Holdings text
	var holdingsTxt = new Text2('', {
		size: 48,
		fill: 0x2ECC71
	});
	holdingsTxt.x = 800;
	holdingsTxt.y = 30 + yPad;
	holdingsTxt.anchor.set(0, 0);
	self.addChild(holdingsTxt);
	// Profit text
	var profitTxt = new Text2('', {
		size: 48,
		fill: 0xFFFFFF
	});
	profitTxt.x = 1100;
	profitTxt.y = 30 + yPad;
	profitTxt.anchor.set(0, 0);
	self.addChild(profitTxt);
	// Buy button
	var buyBtn = self.attachAsset('buyBtn', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 1450,
		y: 60 + yPad
	});
	var buyTxt = new Text2('Buy', {
		size: 36,
		fill: 0xFFFFFF
	});
	buyTxt.anchor.set(0.5, 0.5);
	buyTxt.x = buyBtn.x;
	buyTxt.y = buyBtn.y;
	self.addChild(buyTxt);
	// Amount textbox (between buy and sell)
	var amountBoxBg = self.attachAsset('buyBtn', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 1575,
		y: 60 + yPad,
		scaleX: 0.7,
		scaleY: 0.7
	});
	var amountTxt = new Text2('1', {
		size: 36,
		fill: 0x222a36
	});
	amountTxt.anchor.set(0.5, 0.5);
	amountTxt.x = amountBoxBg.x;
	amountTxt.y = amountBoxBg.y;
	self.addChild(amountTxt);
	// Expose for external update
	self.amountTxt = amountTxt;
	// Touch to edit amount (prompt for number)
	amountBoxBg.down = function (x, y, obj) {
		// On mobile, prompt is supported in LK sandbox for numeric input
		var current = parseInt(amountTxt.text, 10);
		if (isNaN(current) || current < 1) current = 1;
		var entered = prompt("Enter number of shares:", current);
		var val = parseInt(entered, 10);
		if (isNaN(val) || val < 1) val = 1;
		amountTxt.setText('' + val);
		// Also update all other amount boxes to match this value
		if (typeof setAllAmountBoxes === "function") setAllAmountBoxes(val);
		// Also update quick amount button highlight if matches a quick value
		if (typeof quickAmounts !== "undefined" && typeof quickAmountBtns !== "undefined") {
			for (var i = 0; i < quickAmounts.length; i++) {
				if (quickAmounts[i] === val) {
					selectedQuickAmount = val;
					for (var b = 0; b < quickAmountBtns.length; b++) {
						quickAmountBtns[b].updateBtnStyle();
					}
					break;
				}
			}
		}
	};
	// Sell button
	var sellBtn = self.attachAsset('sellBtn', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 1700,
		y: 60 + yPad
	});
	var sellTxt = new Text2('Sell', {
		size: 36,
		fill: 0xFFFFFF
	});
	sellTxt.anchor.set(0.5, 0.5);
	sellTxt.x = sellBtn.x;
	sellTxt.y = sellBtn.y;
	self.addChild(sellTxt);
	// Update UI
	self.updateUI = function () {
		nameTxt.setText(self.companyName);
		priceTxt.setText('₲' + self.price);
		holdingsTxt.setText(self.holdings + ' shares');
		var profit = (self.price - self.lastPrice) * self.holdings;
		var profitColor = "#ffffff";
		if (profit > 0) profitColor = "#2ecc71";
		if (profit < 0) profitColor = "#e74c3c";
		profitTxt.setText((profit >= 0 ? '+' : '') + profit);
		// Use setStyle to update fill color safely
		profitTxt.setStyle({
			fill: profitColor
		});
	};
	// Buy handler
	buyBtn.down = function (x, y, obj) {
		// Buy N shares if enough cash
		var amount = parseInt(amountTxt.text, 10);
		if (isNaN(amount) || amount < 1) amount = 1;
		var maxBuy = Math.floor(playerCash / self.price);
		var buyCount = Math.min(amount, maxBuy);
		if (buyCount > 0) {
			playerCash -= self.price * buyCount;
			self.holdings += buyCount;
			self.updateUI();
			updateCashUI();
		}
	};
	// Sell handler
	sellBtn.down = function (x, y, obj) {
		// Sell N shares if holding
		var amount = parseInt(amountTxt.text, 10);
		if (isNaN(amount) || amount < 1) amount = 1;
		var sellCount = Math.min(amount, self.holdings);
		if (sellCount > 0) {
			playerCash += self.price * sellCount;
			self.holdings -= sellCount;
			self.updateUI();
			updateCashUI();
		}
	};
	// For updating price and profit
	self.setPrice = function (newPrice) {
		self.lastPrice = self.price;
		self.price = newPrice;
		self.updateUI();
	};
	// For updating holdings externally
	self.setHoldings = function (newHoldings) {
		self.holdings = newHoldings;
		self.updateUI();
	};
	// For updating profit display externally
	self.updateProfit = function () {
		self.updateUI();
	};
	// For setting up after construction
	self.init = function (companyIndex, companyName, colorId, price) {
		self.companyIndex = companyIndex;
		self.companyName = companyName;
		self.colorId = colorId;
		self.price = price;
		self.lastPrice = price;
		icon.setAsset(colorId);
		self.updateUI();
	};
	// Allow external update of amount box
	self.setAmountBox = function (val) {
		if (typeof val === "number" && val > 0) {
			self.amountTxt.setText('' + val);
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x222a36
});

/**** 
* Game Code
****/ 
// --- Game Data ---
// 10 company colors for stocks (distinct, visually clear)
// Button shapes
var companyNames = ["AlphaTech", "BetaBank", "GammaFoods", "DeltaPharma", "EpsilonEnergy", "ZetaAuto", "EtaRetail", "ThetaMedia", "IotaLogix", "KappaSpace"];
var companyColors = ['stockA', 'stockB', 'stockC', 'stockD', 'stockE', 'stockF', 'stockG', 'stockH', 'stockI', 'stockJ'];
// Initial prices (randomized a bit for variety)
var initialPrices = [];
for (var i = 0; i < 10; i++) {
	initialPrices[i] = 80 + Math.floor(Math.random() * 40) * 5; // 80-280
}
// Player state
var playerCash = 10000;
var playerHoldings = [];
for (var i = 0; i < 10; i++) playerHoldings[i] = 0;
// Stock state
var stockPrices = [];
var stockLastPrices = [];
for (var i = 0; i < 10; i++) {
	stockPrices[i] = initialPrices[i];
	stockLastPrices[i] = initialPrices[i];
}
// Timer
var gameDurationSec = 300; // 5 minutes
var timeLeft = gameDurationSec;
var timerInterval = null;
// UI elements
var cashTxt = null;
var timerTxt = null;
var wealthTxt = null;
var stockRows = [];
var tableContainer = null;
// --- UI Setup ---
// Cash display (top right, avoid top left 100x100)
cashTxt = new Text2('Cash: ₲' + playerCash, {
	size: 72,
	fill: 0xF1C40F
});
cashTxt.anchor.set(1, 0);
cashTxt.x = 2048 - 40;
cashTxt.y = 40;
LK.gui.topRight.addChild(cashTxt);
// Timer display (top center)
timerTxt = new Text2('05:00', {
	size: 72,
	fill: 0xFFFFFF
});
timerTxt.anchor.set(0.5, 0);
timerTxt.x = 2048 / 2;
timerTxt.y = 40;
LK.gui.top.addChild(timerTxt);
// Wealth display (below timer)
wealthTxt = new Text2('Wealth: ₲' + playerCash, {
	size: 56,
	fill: 0x2ECC71
});
wealthTxt.anchor.set(0.5, 0);
wealthTxt.x = 2048 / 2;
wealthTxt.y = 130;
LK.gui.top.addChild(wealthTxt);
// Table container (centered, scroll not needed for 10 rows)
tableContainer = new Container();
tableContainer.x = 0;
tableContainer.y = 300;
game.addChild(tableContainer);
// Table header
var headerY = 0;
var header = new Text2("Company         Price         Holdings         Profit         ", {
	size: 48,
	fill: 0xBDC3C7
});
header.anchor.set(0, 0);
header.x = 160;
header.y = headerY;
tableContainer.addChild(header);
// Total Profit/Loss label and display (at end of profit column)
var totalProfitLabel = new Text2('Total Profit:', {
	size: 48,
	fill: 0xBDC3C7
});
totalProfitLabel.anchor.set(1, 0);
totalProfitLabel.x = 1090;
totalProfitLabel.y = 80 + 10 * 120 + 10;
tableContainer.addChild(totalProfitLabel);
var totalProfitTxt = new Text2('', {
	size: 48,
	fill: 0xFFFFFF
});
totalProfitTxt.anchor.set(0, 0);
totalProfitTxt.x = 1110;
totalProfitTxt.y = 80 + 10 * 120 + 10; // below last row
tableContainer.addChild(totalProfitTxt);
// --- Stock Rows ---
// Quick amount select buttons (1,5,10,25) above first buy/sell
var quickAmounts = [1, 5, 10, 25];
var quickAmountBtns = [];
var selectedQuickAmount = 1;
// Helper to update all amount boxes in all rows
function setAllAmountBoxes(val) {
	for (var i = 0; i < stockRows.length; i++) {
		if (stockRows[i].setAmountBox) stockRows[i].setAmountBox(val);
	}
}
// Create quick amount buttons
for (var q = 0; q < quickAmounts.length; q++) {
	(function (qIdx) {
		var amt = quickAmounts[qIdx];
		var btn = LK.getAsset('buyBtn', {
			anchorX: 0.5,
			anchorY: 0.5,
			x: 1450 + qIdx * 100 - 150,
			// spread above buy/sell, left-aligned
			y: 60 - 70 // above first row's buy/sell
		});
		var txt = new Text2('' + amt, {
			size: 36,
			fill: 0xFFFFFF
		});
		txt.anchor.set(0.5, 0.5);
		txt.x = btn.x;
		txt.y = btn.y;
		// Highlight selected
		function updateBtnStyle() {
			btn.alpha = selectedQuickAmount === amt ? 1.0 : 0.5;
			txt.setStyle({
				fill: selectedQuickAmount === amt ? "#f1c40f" : "#ffffff"
			});
		}
		btn.down = function (x, y, obj) {
			selectedQuickAmount = amt;
			setAllAmountBoxes(amt);
			// update all button styles
			for (var b = 0; b < quickAmountBtns.length; b++) {
				quickAmountBtns[b].updateBtnStyle();
			}
		};
		btn.updateBtnStyle = updateBtnStyle;
		updateBtnStyle();
		tableContainer.addChild(btn);
		tableContainer.addChild(txt);
		quickAmountBtns.push(btn);
	})(q);
}
// Stock rows
for (var i = 0; i < 10; i++) {
	var row = new StockRow();
	row.init(i, companyNames[i], companyColors[i], stockPrices[i]);
	row.y = 80 + i * 120;
	tableContainer.addChild(row);
	stockRows.push(row);
	// Add setAmountBox method to each row to allow updating amount box text
	row.setAmountBox = function (amountTxt) {
		return function (val) {
			amountTxt.setText('' + val);
		};
	}(row.children[row.children.length - 8]); // amountTxt is always 8th from end
}
// Set all amount boxes to default selected value at start
setAllAmountBoxes(selectedQuickAmount);
// Update total profit/loss
function updateTotalProfit() {
	var totalProfit = 0;
	for (var i = 0; i < 10; i++) {
		var profit = (stockPrices[i] - stockLastPrices[i]) * stockRows[i].holdings;
		totalProfit += profit;
	}
	var profitColor = "#ffffff";
	if (totalProfit > 0) profitColor = "#2ecc71";
	if (totalProfit < 0) profitColor = "#e74c3c";
	totalProfitTxt.setText((totalProfit >= 0 ? '+' : '') + totalProfit);
	totalProfitTxt.setStyle({
		fill: profitColor
	});
}
// --- UI Update Functions ---
function updateCashUI() {
	cashTxt.setText('Cash: ₲' + playerCash);
	updateWealthUI();
	updateTotalProfit();
}
function updateWealthUI() {
	var wealth = playerCash;
	for (var i = 0; i < 10; i++) {
		wealth += playerHoldings[i] * stockPrices[i];
	}
	wealthTxt.setText('Wealth: ₲' + wealth);
}
function updateTimerUI() {
	var min = Math.floor(timeLeft / 60);
	var sec = timeLeft % 60;
	var t = (min < 10 ? '0' : '') + min + ':' + (sec < 10 ? '0' : '') + sec;
	timerTxt.setText(t);
}
// --- Stock Price Update Logic ---
// Simulate price changes every 10 seconds
function updateStockPrices() {
	for (var i = 0; i < 10; i++) {
		stockLastPrices[i] = stockPrices[i];
		// Random walk: -8% to +8%
		var pct = Math.random() * 0.16 - 0.08;
		// Occasionally, a "news event" (1 in 8 chance): -25% to +25%
		if (Math.random() < 0.125) {
			pct = Math.random() * 0.5 - 0.25;
		}
		var newPrice = Math.max(10, Math.round(stockPrices[i] * (1 + pct)));
		stockPrices[i] = newPrice;
		// Update row
		stockRows[i].setPrice(newPrice);
		playerHoldings[i] = stockRows[i].holdings;
	}
	updateWealthUI();
	updateTotalProfit();
}
// --- Timer Logic ---
function tickTimer() {
	timeLeft -= 1;
	if (timeLeft < 0) timeLeft = 0;
	updateTimerUI();
	if (timeLeft === 0) {
		endGame();
	}
}
// --- End Game ---
function endGame() {
	// Calculate final wealth
	var finalWealth = playerCash;
	for (var i = 0; i < 10; i++) {
		finalWealth += playerHoldings[i] * stockPrices[i];
	}
	// Show game over (handled by LK)
	LK.showGameOver();
}
// --- Game Update Loop ---
game.update = function () {
	// No per-frame logic needed for this MVP
};
// --- Start Game Logic ---
function startGame() {
	// Reset state
	playerCash = 10000;
	for (var i = 0; i < 10; i++) {
		stockPrices[i] = initialPrices[i];
		stockLastPrices[i] = initialPrices[i];
		playerHoldings[i] = 0;
		stockRows[i].setPrice(stockPrices[i]);
		stockRows[i].setHoldings(0);
	}
	timeLeft = gameDurationSec;
	updateCashUI();
	updateTimerUI();
	updateWealthUI();
	// Start price update interval (every 10s)
	if (timerInterval) LK.clearInterval(timerInterval);
	timerInterval = LK.setInterval(function () {
		updateStockPrices();
	}, 10000);
	// Start timer (every 1s)
	if (game._timerTick) LK.clearInterval(game._timerTick);
	game._timerTick = LK.setInterval(function () {
		tickTimer();
	}, 1000);
}
// --- Start the game ---
startGame();

===================================================================
--- original.js
+++ change.js
@@ -77,113 +77,51 @@
 	buyTxt.anchor.set(0.5, 0.5);
 	buyTxt.x = buyBtn.x;
 	buyTxt.y = buyBtn.y;
 	self.addChild(buyTxt);
-	// Dropdown for amount selection (between buy and sell)
-	var dropdownBg = self.attachAsset('buyBtn', {
+	// Amount textbox (between buy and sell)
+	var amountBoxBg = self.attachAsset('buyBtn', {
 		anchorX: 0.5,
 		anchorY: 0.5,
 		x: 1575,
 		y: 60 + yPad,
 		scaleX: 0.7,
 		scaleY: 0.7
 	});
-	var dropdownTxt = new Text2('1 ▼', {
+	var amountTxt = new Text2('1', {
 		size: 36,
 		fill: 0x222a36
 	});
-	dropdownTxt.anchor.set(0.5, 0.5);
-	dropdownTxt.x = dropdownBg.x;
-	dropdownTxt.y = dropdownBg.y;
-	self.addChild(dropdownTxt);
-	// Dropdown options
-	var dropdownOptions = [1, 5, 10, 50];
-	var dropdownOpen = false;
-	var dropdownOptionNodes = [];
-	// Helper to close dropdown
-	function closeDropdown() {
-		for (var i = 0; i < dropdownOptionNodes.length; i++) {
-			dropdownOptionNodes[i].visible = false;
-			dropdownOptionNodes[i].interactive = false;
-		}
-		dropdownOpen = false;
-		dropdownTxt.setText(selectedAmount + ' ▼');
-	}
-	// Helper to open dropdown
-	function openDropdown() {
-		for (var i = 0; i < dropdownOptionNodes.length; i++) {
-			dropdownOptionNodes[i].visible = true;
-			dropdownOptionNodes[i].interactive = true;
-		}
-		dropdownOpen = true;
-		dropdownTxt.setText(selectedAmount + ' ▲');
-	}
-	// Selected amount
-	var selectedAmount = 1;
-	// Create dropdown option nodes (hidden by default)
-	for (var i = 0; i < dropdownOptions.length; i++) {
-		var optVal = dropdownOptions[i];
-		var optBg = self.attachAsset('buyBtn', {
-			anchorX: 0.5,
-			anchorY: 0.5,
-			x: dropdownBg.x,
-			y: dropdownBg.y + (i + 1) * 60,
-			scaleX: 0.7,
-			scaleY: 0.7
-		});
-		var optTxt = new Text2(optVal + '', {
-			size: 36,
-			fill: 0x222a36
-		});
-		optTxt.anchor.set(0.5, 0.5);
-		optTxt.x = optBg.x;
-		optTxt.y = optBg.y;
-		self.addChild(optBg);
-		self.addChild(optTxt);
-		optBg.visible = false;
-		optTxt.visible = false;
-		optBg.interactive = false;
-		// Option select handler
-		(function (val, bg, txt) {
-			optBg.down = function (x, y, obj) {
-				selectedAmount = val;
-				dropdownTxt.setText(val + ' ▼');
-				closeDropdown();
-			};
-			// Show/hide text with bg
-			optBg.visible = false;
-			optTxt.visible = false;
-			// When showing/hiding, always keep text in sync
-			optBg._setVisible = function (v) {
-				optBg.visible = v;
-				optTxt.visible = v;
-			};
-			Object.defineProperty(optBg, 'visible', {
-				set: function set(v) {
-					// Prevent recursive setter call by only updating if value changes
-					if (optBg._visible !== v) {
-						optBg._visible = v;
-						optBg._setVisible(v);
+	amountTxt.anchor.set(0.5, 0.5);
+	amountTxt.x = amountBoxBg.x;
+	amountTxt.y = amountBoxBg.y;
+	self.addChild(amountTxt);
+	// Expose for external update
+	self.amountTxt = amountTxt;
+	// Touch to edit amount (prompt for number)
+	amountBoxBg.down = function (x, y, obj) {
+		// On mobile, prompt is supported in LK sandbox for numeric input
+		var current = parseInt(amountTxt.text, 10);
+		if (isNaN(current) || current < 1) current = 1;
+		var entered = prompt("Enter number of shares:", current);
+		var val = parseInt(entered, 10);
+		if (isNaN(val) || val < 1) val = 1;
+		amountTxt.setText('' + val);
+		// Also update all other amount boxes to match this value
+		if (typeof setAllAmountBoxes === "function") setAllAmountBoxes(val);
+		// Also update quick amount button highlight if matches a quick value
+		if (typeof quickAmounts !== "undefined" && typeof quickAmountBtns !== "undefined") {
+			for (var i = 0; i < quickAmounts.length; i++) {
+				if (quickAmounts[i] === val) {
+					selectedQuickAmount = val;
+					for (var b = 0; b < quickAmountBtns.length; b++) {
+						quickAmountBtns[b].updateBtnStyle();
 					}
-				},
-				get: function get() {
-					return optBg._visible;
+					break;
 				}
-			});
-			optBg._visible = false;
-		})(optVal, optBg, optTxt);
-		dropdownOptionNodes.push(optBg);
-	}
-	// Dropdown open/close handler
-	dropdownBg.down = function (x, y, obj) {
-		if (dropdownOpen) {
-			closeDropdown();
-		} else {
-			openDropdown();
+			}
 		}
 	};
-	dropdownTxt.down = dropdownBg.down;
-	closeDropdown();
 	// Sell button
 	var sellBtn = self.attachAsset('sellBtn', {
 		anchorX: 0.5,
 		anchorY: 0.5,
@@ -215,9 +153,9 @@
 	};
 	// Buy handler
 	buyBtn.down = function (x, y, obj) {
 		// Buy N shares if enough cash
-		var amount = selectedAmount;
+		var amount = parseInt(amountTxt.text, 10);
 		if (isNaN(amount) || amount < 1) amount = 1;
 		var maxBuy = Math.floor(playerCash / self.price);
 		var buyCount = Math.min(amount, maxBuy);
 		if (buyCount > 0) {
@@ -229,9 +167,9 @@
 	};
 	// Sell handler
 	sellBtn.down = function (x, y, obj) {
 		// Sell N shares if holding
-		var amount = selectedAmount;
+		var amount = parseInt(amountTxt.text, 10);
 		if (isNaN(amount) || amount < 1) amount = 1;
 		var sellCount = Math.min(amount, self.holdings);
 		if (sellCount > 0) {
 			playerCash += self.price * sellCount;
@@ -264,8 +202,14 @@
 		self.lastPrice = price;
 		icon.setAsset(colorId);
 		self.updateUI();
 	};
+	// Allow external update of amount box
+	self.setAmountBox = function (val) {
+		if (typeof val === "number" && val > 0) {
+			self.amountTxt.setText('' + val);
+		}
+	};
 	return self;
 });
 
 /**** 
@@ -277,11 +221,11 @@
 
 /**** 
 * Game Code
 ****/ 
-// Button shapes
-// 10 company colors for stocks (distinct, visually clear)
 // --- Game Data ---
+// 10 company colors for stocks (distinct, visually clear)
+// Button shapes
 var companyNames = ["AlphaTech", "BetaBank", "GammaFoods", "DeltaPharma", "EpsilonEnergy", "ZetaAuto", "EtaRetail", "ThetaMedia", "IotaLogix", "KappaSpace"];
 var companyColors = ['stockA', 'stockB', 'stockC', 'stockD', 'stockE', 'stockF', 'stockG', 'stockH', 'stockI', 'stockJ'];
 // Initial prices (randomized a bit for variety)
 var initialPrices = [];
@@ -369,15 +313,74 @@
 totalProfitTxt.x = 1110;
 totalProfitTxt.y = 80 + 10 * 120 + 10; // below last row
 tableContainer.addChild(totalProfitTxt);
 // --- Stock Rows ---
+// Quick amount select buttons (1,5,10,25) above first buy/sell
+var quickAmounts = [1, 5, 10, 25];
+var quickAmountBtns = [];
+var selectedQuickAmount = 1;
+// Helper to update all amount boxes in all rows
+function setAllAmountBoxes(val) {
+	for (var i = 0; i < stockRows.length; i++) {
+		if (stockRows[i].setAmountBox) stockRows[i].setAmountBox(val);
+	}
+}
+// Create quick amount buttons
+for (var q = 0; q < quickAmounts.length; q++) {
+	(function (qIdx) {
+		var amt = quickAmounts[qIdx];
+		var btn = LK.getAsset('buyBtn', {
+			anchorX: 0.5,
+			anchorY: 0.5,
+			x: 1450 + qIdx * 100 - 150,
+			// spread above buy/sell, left-aligned
+			y: 60 - 70 // above first row's buy/sell
+		});
+		var txt = new Text2('' + amt, {
+			size: 36,
+			fill: 0xFFFFFF
+		});
+		txt.anchor.set(0.5, 0.5);
+		txt.x = btn.x;
+		txt.y = btn.y;
+		// Highlight selected
+		function updateBtnStyle() {
+			btn.alpha = selectedQuickAmount === amt ? 1.0 : 0.5;
+			txt.setStyle({
+				fill: selectedQuickAmount === amt ? "#f1c40f" : "#ffffff"
+			});
+		}
+		btn.down = function (x, y, obj) {
+			selectedQuickAmount = amt;
+			setAllAmountBoxes(amt);
+			// update all button styles
+			for (var b = 0; b < quickAmountBtns.length; b++) {
+				quickAmountBtns[b].updateBtnStyle();
+			}
+		};
+		btn.updateBtnStyle = updateBtnStyle;
+		updateBtnStyle();
+		tableContainer.addChild(btn);
+		tableContainer.addChild(txt);
+		quickAmountBtns.push(btn);
+	})(q);
+}
+// Stock rows
 for (var i = 0; i < 10; i++) {
 	var row = new StockRow();
 	row.init(i, companyNames[i], companyColors[i], stockPrices[i]);
 	row.y = 80 + i * 120;
 	tableContainer.addChild(row);
 	stockRows.push(row);
+	// Add setAmountBox method to each row to allow updating amount box text
+	row.setAmountBox = function (amountTxt) {
+		return function (val) {
+			amountTxt.setText('' + val);
+		};
+	}(row.children[row.children.length - 8]); // amountTxt is always 8th from end
 }
+// Set all amount boxes to default selected value at start
+setAllAmountBoxes(selectedQuickAmount);
 // Update total profit/loss
 function updateTotalProfit() {
 	var totalProfit = 0;
 	for (var i = 0; i < 10; i++) {