var sizes = new Array('xx-small','x-small','small','medium','large','x-large','xx-large');
var fSize = 2;

function changeFont(target,increment)
{

	fSize += increment;
	if (fSize < 0) fSize = 0;
	if (fSize > 6) fSize = 6;
	
	eval("document.getElementById('"+target+"').style.fontSize = sizes[fSize]");
}