var textsize = 12;
function changetextsize(up){
	if(up)
		textsize = parseFloat(textsize)+2;
	else
		textsize =parseFloat(textsize)-2;
}

function fsize(size,unit,id){
	var vfontsize = document.getElementById(id);
	if (vfontsize){
		vfontsize.style.fontSize = size + unit;
		createCookie("textsizestyle", size, 365);
	}
}

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;
}