function resizeText(multiplier) {
    document.body.style.fontSize =  multiplier + "em";
    createCookie("fontSize",multiplier,30);
    setStyle(multiplier);
}

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 ca = document.cookie.split(';');
    var nameEQ = name + "=";
    for(var i=0; i < ca.length; i++) {
        var c = ca[i];
        while (c.charAt(0)==' ') c = c.substring(1, c.length); //delete spaces
        if (c.indexOf(nameEQ) == 0) 
            return c.substring(nameEQ.length, c.length);
    }
    return null;
}

function setStyle(multiplier) {
    if(multiplier == "0.65") {
        document.getElementById("tsizeSmall").className = "tsizeSelected";
        document.getElementById("tsizeNormal").className = "";
        document.getElementById("tsizeLarge").className = "";
    }
    if(multiplier == "0.75") {
        document.getElementById("tsizeSmall").className = "";
        document.getElementById("tsizeNormal").className = "tsizeSelected";
        document.getElementById("tsizeLarge").className = "";
    }
    if(multiplier == "1") {
        document.getElementById("tsizeNormal").className = "";
        document.getElementById("tsizeSmall").className = "";
        document.getElementById("tsizeLarge").className = "tsizeSelected";
    }       
}

function loadSettings() {
    fontSize=readCookie("fontSize");        
    if(fontSize != "undefined" && fontSize != null) {
        document.body.style.fontSize = fontSize + "em";
        setStyle(fontSize);
    }
}