function resizeUp() {
	changeFontSize(+1);
}

function resizeZero() {
	document.getElementById('cim_page-wrapper').style.fontSize = '100%';
}

function resizeDown() {
	changeFontSize(-1);
}

var defaultFontSize = 100;
var currentFontSize = defaultFontSize;

function setFont()
{
  cookie = readCookie("fontSize");
  currentFontSize = cookie ? cookie : defaultFontSize;
  setFontSize(currentFontSize);
}

function changeFontSize(sizeDifference){
	currentFontSize = parseInt(currentFontSize) + parseInt(sizeDifference * 5);

	if(currentFontSize > 142){
		currentFontSize = 142;
	}else if(currentFontSize < 58){
		currentFontSize = 58;
	}

	setFontSize(currentFontSize);
	createCookie("fontSize", currentFontSize, 365);
};

function setFontSize(fontSize){
	var stObj = (document.getElementById) ? document.getElementById('content_area') : document.all('content_area');
	document.body.style.fontSize = fontSize + '%';
};

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 deleteCookie()
{
  var cookieDate = new Date();
  cookieDate.setTime(cookieDate.getTime() - 30 * 24 * 60 * 60 * 1000);
  document.cookie = "fontSize=100%;expires=" + cookieDate.toGMTString();
}