function resize(sz) {
	if(!document.getElementById){
		return;
	}
	d=document,obj=null;
	if(!(obj=d.getElementById('content'))){
		obj = d.getElementsByTagName('content');
	}
	obj.style.fontSize = sz+'px';
	saveSize("size",sz,1000);
}

function readSize(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 saveSize(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 defaultSize(){
	var x = readSize('size');
	if(x>15 && x<19){
		resize(x);
	} else {
		resize(15);	
	}
}