// JavaScript Document

var tags = new Array('div','td','tr','p','b','span','table','strong','emphasis','a',
'h2','h3','pre','sub','sup','i','th','cp','ul','ol','li','dt','dd');

var pixelArray = new Array('8','10','12','14','18','24','30','40');
var emArray = new Array('0.7','0.9','1.0','1.5','2.0','2.5','3');

var initSize = 2;

function fontSizer(inc,unit) {
  if (!document.getElementById)
    return;
  var size = initSize;
  size += inc;
  if (size < 0 ) {
    size = 0;
  }
  if (size > 6 ) {
    size = 6;
  }
  initSize = size;
  getBody = document.getElementsByTagName('body')[0];
  for (i = 0 ; i < tags.length ; i++ ) {
    getallTags = getBody.getElementsByTagName(tags[i]);
    for (k = 0 ; k < getallTags.length ; k++)
      getallTags[k].style.fontSize = (unit=='px') ? pixelArray[size]+unit: emArray[size]+unit;
  }
}