var g_fontSize;

g_fontSize = readCookie("TextSize");
if( g_fontSize != null)
{
    document.getElementsByTagName("body")[0].style.fontSize = readCookie("TextSize") + "%";
    g_fontSize = readCookie("TextSize");
}


function LargerText()
{
    var body = document.getElementsByTagName("body")[0];
 
    if( !body.style.fontSize )
    {
        body.style.fontSize = "85%";
        g_fontSize = 85;
    }
    else
    {
        body.style.fontSize = parseFloat(g_fontSize) + 10 + "%";
        g_fontSize = parseFloat(g_fontSize) + 10;
    }
    eraseCookie("TextSize");
    createCookie("TextSize",g_fontSize,"1");
}
function SmallerText()
{

    var body = document.getElementsByTagName("body")[0];
    
    if( !body.style.fontSize )
    {
        body.style.fontSize = "65%";
        g_fontSize = 65;
    }
    else
    {
        body.style.fontSize = parseFloat(g_fontSize) - 10 + "%";
        g_fontSize = parseFloat(g_fontSize) - 10;
    }
    eraseCookie("TextSize");
    createCookie("TextSize",g_fontSize,"1");
}


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);
}