var pub_font_size=16;

function SetCookie(sName, sValue) {
	if (navigator.cookieEnabled) {
 		document.cookie = sName + "=" + escape(sValue) + "; expires=31 Dec 2099 23:59:59 UTC;";
	}
}

function GetCookie(sName) {
	if (navigator.cookieEnabled) {
		var aCookie = document.cookie.split("; ");
		for (var i=0; i < aCookie.length; i++) {
			var aCrumb = aCookie[i].split("=");
			if (sName == aCrumb[0]) 
			return unescape(aCrumb[1]);
		}
		return "null";
	}
}

function setFontSize() {
	pt = document.getElementById ? document.getElementById("pub_text") : document.all.pub_text;
	pt.style.fontSize = pub_font_size + "px";
}

function changeFontSize(par) {
	if ((pub_font_size > 12) & (pub_font_size < 25)) {
		switch (par) {	
			case "+":	if (pub_font_size < 24) pub_font_size+=1; 
						setFontSize();
						break;
			case "-":	if (pub_font_size > 13) pub_font_size-=1;
						setFontSize();
						break;
		}
		SetCookie("pf", pub_font_size);
	}
}