javascript打印ascii表

<SCRIPT LANGUAGE="JavaScript">
<!--
function printAscii(uBound)
{
  for(i=0;i<uBound;i++)
 {
  //document.write(i);
  document.write("&nbsp;&nbsp;&nbsp;");
  var str=String.fromCharCode(i);
  document.write(str);
  if(i%10==0) document.write("\r\n<p>");
 }
}
printAscii(128);
//-->
</SCRIPT>