function setUnderline(){
    if (readCookie("fontsize") != "") {
        if (readCookie("fontsize")=='1em') {
            document.getElementById("defaultFont").childNodes[0].setAttribute("src","/pet/images/a-small-red.gif");
        } else {
            document.getElementById("defaultFont").childNodes[0].setAttribute("src","/pet/images/a-small.gif");
        }
     
        if (readCookie("fontsize")=='1.1em') {
            document.getElementById("largeFont").childNodes[0].setAttribute("src","/pet/images/a-mid-red.gif");
        } else {
            document.getElementById("largeFont").childNodes[0].setAttribute("src","/pet/images/a-mid.gif");
        }
     
        if (readCookie("fontsize")=='1.15em') {
            document.getElementById("largerFont").childNodes[0].setAttribute("src","/pet/images/a-big-red.gif");
        } else  {
            document.getElementById("largerFont").childNodes[0].setAttribute("src","/pet/images/a-big.gif");
        }
    } else {
        document.getElementById("defaultFont").childNodes[0].setAttribute("src","/pet/images/a-small-red.gif");
    }
}
document.getElementById('wrapperMain').style.fontSize=readCookie("fontsize");
setUnderline();