var debugTesting = 0;
function resizeText(multiplier) {

  if (document.body.style.fontSize == "") {
    document.body.style.fontSize = "1.0em";
  }
  size = (multiplier==0 ? 1 : parseFloat(document.body.style.fontSize) + (multiplier * 0.2));
  document.body.style.fontSize = size + "em";
  set_cookie('page_size', size, 30);
  if(debugTesting && document.getElementById('fontSizeSpan'))
  {  document.getElementById('fontSizeSpan').innerHTML = size; }
}

function set_cookie(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 get_cookie(name) {
    var name_eq = 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(name_eq) == 0) return c.substring(name_eq.length,c.length);
    }
    return null;
}

var stext = document.createElement('img');
stext.id = 'minustext';
stext.title = 'Decrease text size';
stext.alt = 'Decrease text size';
stext.src = '/images/makeTextSmaller.png';
stext.onclick= function() { resizeText(-1); };

var ntext = document.createElement('img');
ntext.id = 'normaltext';
ntext.title = 'Normal text size';
ntext.alt = 'Normal text size';
ntext.src = '/images/makeTextNormal.png';
ntext.onclick= function() { resizeText(0); };

var ptext = document.createElement('img');
ptext.id = 'plustext';
ptext.title = 'Increase text size';
ptext.alt = 'Increase text size';
ptext.src = '/images/makeTextLarger.png';
ptext.onclick= function() { resizeText(1); };

var fontSizeSpan = document.createElement('span');
fontSizeSpan.id = 'fontSizeSpan';
fontSizeSpan.innerHTML = 'Select your font size: ';


var textDiv = document.createElement('div');
textDiv.id = 'textDiv';
textDiv.appendChild(fontSizeSpan);
textDiv.appendChild(stext); 
textDiv.appendChild(ntext); 
textDiv.appendChild(ptext);

document.getElementById("page").parentNode.insertBefore( textDiv,document.getElementById('page'));
//document.getElementById("nav-contain").appendChild( textDiv );

if(get_cookie("page_size") != null){  
size=get_cookie("page_size");
document.body.style.fontSize = size + "em";
/*    document.write('<style>');
    document.write('body{');
    document.write('font-size:'+ get_cookie("page_size") + 'em');
    document.write('}');
    document.write('</style>')
*/
}else{
/*    document.write('<style>');
    document.write('body{');
    document.write('font-size: 1em');
    document.write('}');
    document.write('</style>')  
*/
}

  

if(debugTesting && document.getElementById('fontSizeSpan'))
{  document.getElementById('fontSizeSpan').innerHTML = size; }