var fsize = new Array(12,14,16,18,20);
var fnum = 2;
var areaNum = 1;

function fsizeChg(num){

fnum += num;
if (fnum>4) fnum=4;
if (fnum<0) fnum=0;

if (document.all){
for (i=1;i<=areaNum;i++){
if (document.all["area"+i]){
document.all["area"+i].style.fontSize = fsize[fnum]+"px";
document.all["area"+i].style.lineHeight = "140%";
}
}
} else {
for (i=1;i<=areaNum;i++){
if (document.getElementById("area"+i)){
document.getElementById("area"+i).style.fontSize = fsize[fnum]+"px";
document.getElementById("area"+i).style.lineHeight = "140%";
}
}
}
}