function changeFontSize(size) {
	var currentsize = readCookie('fontsize');if(currentsize=='') {currentsize=0;}currentsize=parseInt(currentsize);
	if(size!=currentsize) {
		aElm = new Array('td', 'input', 'textarea', 'select');
		for(var elm=0; elm<aElm.length; elm++) {
			var p = document.getElementsByTagName(aElm[elm]);
			for(var i=0; i<p.length; i++) {
				if(p[i].style.fontSize) {
					var s = parseInt(p[i].style.fontSize.replace("px",""));
					var sfix = new String((s-currentsize));
					var snew = new String((s+size-currentsize));
					p[i].style.fontSize = sfix+"px";
					p[i].style.fontSize = snew+"px";
				}
			}
		}
		createCookie('fontsize', size, 40);
	}
	return(false);
}

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 initFontSize() {
	if(parseInt(readCookie('fontsize'))>0) {
		size = parseInt(readCookie('fontsize'));
		aElm = new Array('td', 'input', 'textarea', 'select');
		for(var elm=0; elm<aElm.length; elm++) {
			var p = document.getElementsByTagName(aElm[elm]);
			for(var i=0; i<p.length; i++) {
				if(p[i].style.fontSize) {
					var s = parseInt(p[i].style.fontSize.replace("px",""));
					p[i].style.fontSize = (s+size)+"px"
				}
			}
		}
		createCookie('fontsize', size, 40);
	} else {
		createCookie('fontsize', '0', 40);
	}
}