var defsize=10;
function fsize(inc){
	var objText = document.getElementById("cbox");
	defsize = defsize - (-inc);
	fsz=defsize;
	var nsz;


	nsz = defsize

	if(nsz<10){
		nsz = 10;
		defsize=10;
	}
	if(nsz>18){
		nsz = 18;
		defsize=18;
	}
	nsz=nsz+"px";
	objText.style.fontSize = nsz;
}
function fsize_d()
{
	defsize=10;
	var objText = document.getElementById("cbox");
	objText.style.fontSize = "10px";
}