window.currentSize = 15;
window.sizeMax = 19;
window.sizeMin = 13;
window.sizeDefault = 15;

function increaseSize() {
	
	if (window.currentSize < sizeMax) {
		document.getElementById('rightCol').style.fontSize = (window.currentSize - 1) + "px";
		window.currentSize++;
		document.getElementById('contentArea').style.fontSize = window.currentSize + "px";
	}

}

function decreaseSize() {
	
	if (window.currentSize > sizeMin) {
		window.currentSize--;
		document.getElementById('contentArea').style.fontSize = window.currentSize + "px";
		rightColSize = window.currentSize - 2;
		document.getElementById('rightCol').style.fontSize = rightColSize + "px";
	}

}

function resetSize() {
	window.currentSize = window.sizeDefault;
	document.getElementById('contentArea').style.fontSize = window.currentSize + "px";
	rightColSize = window.currentSize - 2;
	document.getElementById('rightCol').style.fontSize = rightColSize + "px";
}