// Copyright 2003 Eddie Traversa
// http://www.dhtmlnirvana.com/
// free to use as long as this copyright notice stays intact
var tags = new Array( 'div','td','tr','p','b','table','strong','emphasis','a','h1','h3','pre','sub','sup','i','th','cp','ul','ol','li','dt','dd');
var pixelArray =  new Array('10','12','14','18','20','30','40');
var emArray =  new Array('0.8','0.9','1.0','1.5','2.0','2.5','3');
var initSize = 1;

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;
	}
}
/*
	function changeFontSize(inc){

		var p = document.getElementsByTagName('p');
		for(n=0; n<p.length; n++) {
			if(p[n].style.fontSize) {
				var size = parseInt(p[n].style.fontSize.replace("px", ""));
			}
			else {
				var size = 12;
			}
			
			p[n].style.fontSize = inc + 'em';
		}
	}
*/