/***********************************************************************/
/* Stylesheet Toggle
/***********************************************************************/

function setActiveStyleSheet(title) {
var i, a, main;
for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) {
a.disabled = true;
if(a.getAttribute("title") == title) a.disabled = false;
}
}
}

function getActiveStyleSheet() {
var i, a;
for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title") && !a.disabled) return a.getAttribute("title");
}
return null;
}

function getPreferredStyleSheet() {
var i, a;
for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
if(a.getAttribute("rel").indexOf("style") != -1
&& a.getAttribute("rel").indexOf("alt") == -1
&& a.getAttribute("title")
) return a.getAttribute("title");
}
return null;
}

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;
}

window.onload = function(e) {
var cookie = readCookie("style");
var title = cookie ? cookie : getPreferredStyleSheet();
setActiveStyleSheet(title);
}

window.onunload = function(e) {
var title = getActiveStyleSheet();
createCookie("style", title, 365);
}

var cookie = readCookie("style");
var title = cookie ? cookie : getPreferredStyleSheet();
setActiveStyleSheet(title);


function applyResizeScript() {
    if(!document.getElementById) { return; }    
    var toolTextresizeNormal = document.getElementById("tool-textresize-normal");
	var toolTextresizeLarge = document.getElementById("tool-textresize-large");
	var toolTextresizeExtralarge = document.getElementById("tool-textresize-extralarge");

    if (!toolTextresizeNormal) { return; }
	if (!toolTextresizeLarge) { return; }
	if (!toolTextresizeExtralarge) { return; }
    
  
    toolTextresizeNormal.onclick = function()
        {setActiveStyleSheet('', 1); return false;}
	toolTextresizeNormal.keypress = function()
        {setActiveStyleSheet('', 1); return false;}
	toolTextresizeLarge.onclick = function()
        {setActiveStyleSheet('textsize-large');return false;}
	toolTextresizeLarge.keypress = function()
        {setActiveStyleSheet('textsize-large');return false;}
	toolTextresizeExtralarge.onclick = function()
        {setActiveStyleSheet('textsize-extralarge');return false;}
	toolTextresizeExtralarge.keypress = function()
        {setActiveStyleSheet('textsize-extralarge');return false;}
} 


/***********************************************************************/
/* On Load Events
/***********************************************************************/

function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      if (oldonload) {
        oldonload();
      }
      func();
    }
  }
}

// Apply text resize script
addLoadEvent(applyResizeScript);