var scale = 1;
function fontsizeup() {	
	scale = scale + 0.1;
	document.body.style.MozTransform = "scale("+scale+")";
	document.body.style.zoom= scale;
	//document.body.style.margin = (scale*100)-100 + '% 0';
}

function fontsizedown() {
	scale = scale - 0.1;
	document.body.style.MozTransform = "scale("+scale+")";
	document.body.style.zoom= scale;
	//document.body.style.margin = '0';
}

function fontsizestd() {
	scale = 1;
	document.body.style.MozTransform = "scale(1)";
	document.body.style.zoom= "1";
	//document.body.style.margin = '0';
}