var fSize = 1;

function FontSizing(spInc)
{
	var siteBody = document.getElementById('page_content');
	var plusSymbol = document.getElementById('fontPlus');
	var minusSymbol = document.getElementById('fontMinus');

	if (fSize < 1.5 && spInc > 0) {
		fSize += spInc;
		siteBody.style.fontSize = fSize + "em";
		minusSymbol.style.color = "#ddd";
		if (fSize >= 1.5) {
			plusSymbol.style.color = "#ddd";
            minusSymbol.style.color = "#aaa";
		}
	} else if (fSize > 1 && spInc < 0) {
		fSize += spInc;
		siteBody.style.fontSize = fSize + "em";
		plusSymbol.style.color = "#ddd";
		if (fSize <= 1) {
			minusSymbol.style.color = "#ddd";
            plusSymbol.style.color = "#aaa";
		}
	} else if (spInc == 0) {
		fSize = 1;
		siteBody.style.fontSize = fSize + "em";
	}
}