function fontSize(object, size)
{
	this.m_size = size;
	this.m_object = object;
	object.style.fontSize = size+"px";
}
 
fontSize.prototype.increase = function()
{
	var size = this.m_object.style.fontSize;
	size = size.replace(/px/, "");
	if (size == 14)
		return;
	size = size*1 + 1;
	size = size+"px";
	this.m_object.style.fontSize = size;
}
 
fontSize.prototype.decrease = function()
{
	var size = this.m_object.style.fontSize;
	size = size.replace(/px/, "");
	if (size == 12)
		return;
	size = size*1 - 1;
	size = size+"px";
	this.m_object.style.fontSize = size;
}

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 var 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);
}