function getCookie(c_name)
{
if (document.cookie.length>0)
  {
  c_start=document.cookie.indexOf(c_name + "=");
  if (c_start!=-1)
    { 
    c_start=c_start + c_name.length+1; 
    c_end=document.cookie.indexOf(";",c_start);
    if (c_end==-1) c_end=document.cookie.length;
    return unescape(document.cookie.substring(c_start,c_end));
    } 
  }
return "";
}


function changeFontSize(FontNumber) {
    var FontSize
    FontSize = getCookie('WilberforceFontSize');
    if (FontSize == "") {
        if (FontNumber == "+") {
            FontSize = "16";
        } else if (FontNumber == "-") {
            FontSize = "14";
        }
        
    } else {
        if (FontNumber == "+") {
            FontSize = ++FontSize;
        } else if (FontNumber == "-") {
            FontSize = --FontSize;
        }
    
    }
    document.getElementById('header').style.fontSize = FontSize + "px";
    document.getElementById('body').style.fontSize = FontSize + "px";
    var exdate=new Date();
    exdate.setDate(exdate.getDate() + 5);
    document.cookie = "WilberforceFontSize" + "=" + escape(FontSize) + ";path=/; expires=" + exdate.toGMTString();
    //document.getElementById('ChangeNavSize').style.fontSize = FontNumber+"px";//
}

function fontSizeLoad() {
    var FontSize
    FontSize = getCookie('WilberforceFontSize');
    if (FontSize != "") {
        document.getElementById('body').style.fontSize = FontSize + "px";
        document.getElementById('header').style.fontSize = FontSize + "px";
    };

}

function bookmark()
{
bookmarkurl="http://www.wilberforcetrust.org.uk/"
bookmarktitle="The Wilberforce Trust"
if (document.all)
window.external.AddFavorite(bookmarkurl,bookmarktitle)
else if (window.sidebar) // firefox
window.sidebar.addPanel(bookmarktitle, bookmarkurl, "");
}