var tags = new Array('fieldset','legend','div','td','tr','p','b','table','strong','emphasis','a','h1','h2','h3','pre','sub','sup','i','th','cp','ul','ol','li','dt','dd','blockquote');
var pixelArray =  new Array('11', '12', '13', '14', '15', '16', '17', '18');
var emArray =  new Array('0.7','0.9','1.0','1.5','2.0','2.5','3');
var initSize = 1;
var curSize;
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;
	}
	curSize = pixelArray[size-1]+unit;
}

function createCookie(name,value,days) {
  if (days) {
    var date = new Date();
    date.setTime(date.getTime()+(days*24*60*60*1000));
    var expires = '; expires='+date.toGMTString();
  }
  else expires = '';
  document.cookie = name+'='+value+expires+'; path=/';
}

function readCookie(name) {
  var nameEQ = name + '=';
  var ca = document.cookie.split(';');
  for(var i=0;i < ca.length;i++) {
    var c = ca[i];
    while (c.charAt(0)==' ') c = c.substring(1,c.length);
    if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
  }
  return null;
}

function eraseCookie(name) {
	createCookie(name,'',-1);
}

function doFontLoad()
{
	var cookie = readCookie('la-style');
	if (cookie != null) {
		var size = cookie.substring(0, 2);
	
		if (size == "10") {
			initSize = 1
		} else if (size == "11") {
			initSize = 2
		} else if (size == "12") {
			initSize = 3
		} else if (size == "13") {
			initSize = 4
		} else if (size == "14") {
			initSize = 5
		} else if (size == "15") {
			initSize = 6
		} else if (size == "16") {
			initSize = 7
		} else if (size == "17") {
			initSize = 8
		} else if (size == "18") {
			initSize = 9
		}
		initSize --;
		fontSizer(0, 'px');
	} else {
		initSize = 2;
		fontSizer(0, 'px');
	}
}

function setCookie()
{
	createCookie('la-style', curSize, 365);
}