var _tailleMin = 1;
var _tailleMax = 6;

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 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 LoadSize()
{
    var fsize = readCookie("fsize");
    if (fsize == null)
		setSize(_tailleMin);
	else
		setSize(fsize);
	
}

function increaseFontSize()
{

	var newSize = readCookie("fsize");
	newSize++;
	
	if (newSize > _tailleMax)
		newSize = _tailleMax;
	
	setSize(newSize);
}

function decreaseFontSize()
{
	var newSize = readCookie("fsize");
	newSize--;
	
	if (newSize < _tailleMin)
		newSize = _tailleMin;
	
	setSize(newSize);
}

function setSize(size)
{
	$("body").removeClass("tailleTexte1 tailleTexte2 tailleTexte3 tailleTexte4 tailleTexte5 tailleTexte6");
	var resu= $("body").addClass("tailleTexte" + size);
	createCookie("fsize", size, 365);
}