var GlobalSettings = {
	currentFontSize: null,

	setFontSize: function(value) {
		document.cookie = 'font_size=' + value + '; path=/';
		document.body.style.fontSize = value + "em";
		this.currentFontSize = value;
	},

	increaseFontSize: function() {
		this.setFontSize(this.currentFontSize + 0.1);
	},

	decreaseFontSize: function() {
		this.setFontSize(this.currentFontSize - 0.1);
	},

	resetFontSize: function() {
		this.setFontSize(1.0);
	}
};