resize font size

function resetCurrentsize() {
  currentSize = 13;
  if(strLocalization == "JP") {
	if(typeof(fontOverride) == "undefined") {
		currentSize = 16;
	} else {
		currentSize = fontOverride;
	}
  }
  if(strLocalization == "CN") {
  if(typeof(fontOverride) == "undefined") {
		currentSize = 14;
	} else {
		currentSize = fontOverride;
	}
  }
  if (typeof(preDefaultSize) != "undefined") {
  	currentSize = preDefaultSize;
  }
  document.getElementById("CurrentSize").value = currentSize;
  if (document.getElementById) {
  	document.getElementById("resizeableText").style.cssText = "font-size:"+currentSize+"px";  	
  }
}

function sizeDown() {
  if (document.getElementById) {
    currentSize--;
    document.getElementById("CurrentSize").value = currentSize;
    document.getElementById("resizeableText").style.cssText = "font-size:"+currentSize+"px";
  }
}

function sizeUp() {
  if (document.getElementById) {
    currentSize++;
    document.getElementById("CurrentSize").value = currentSize;
    document.getElementById("resizeableText").style.cssText = "font-size:"+currentSize+"px";
  }
}