/**
******************************************************
* styleswitcher.js - Madana Girls School
******************************************************
*
* Style Sheet Switcher JavaScript
*
******************************************************
*
* NOTES: Only widthup() and widthdown() was written by the author.
*
******************************************************
*
* Developed By	: Ewave Designs (UK)
* Company URL	: http://www.ewavedesigns.co.uk
* Author         	: M S Rahman
* Contact       	: s.rahman@webain.co.uk
* Author URL   	: http://www.webain.co.uk
* Date Created	: 09/02/2005
* Script Status	: IE bugs found for check_select(). Rest is Healthy.
* Version			: 1.2 Re
* Last Modified	: 30/05/2006 {Please update this accordingly}
*
******************************************************
*
*  Copyright (c) 2006 Ewave Designs (UK). All rights reserved.
*
******************************************************
*
**/

function widthup() {
  active = getActiveStyleSheet();
  switch (active) {
    case '%--' : 
      setActiveStyleSheet('%-');
      break;
    case '%-' : 
      setActiveStyleSheet('%');
      break;
    case '%' : 
      setActiveStyleSheet('%+');
      break;
    case '%+' : 
      setActiveStyleSheet('%++');
      break;
    case '%++' :
      break;
    default :
      setActiveStyleSheet('%');
      break;
  }
}

function widthdown() {
  active = getActiveStyleSheet();
  switch (active) {
    case '%++' : 
      setActiveStyleSheet('%+');
      break;
    case '%+' : 
      setActiveStyleSheet('%');
      break;
    case '%' : 
      setActiveStyleSheet('%-');
      break;
    case '%-' : 
      setActiveStyleSheet('%--');
      break;
    case '%--' : 
       break;
    default :
      setActiveStyleSheet('%--');
      break;
  }
}

function fontsizeup() {
  active = getActiveStyleSheet();
  switch (active) {
    case 'A--' : 
      setActiveStyleSheet('A-');
      break;
    case 'A-' : 
      setActiveStyleSheet('A');
      break;
    case 'A' : 
      setActiveStyleSheet('A+');
      break;
    case 'A+' : 
     // setActiveStyleSheet('A++');
      break;
    case 'A++' :
      break;
    default :
      setActiveStyleSheet('A');
      break;
  }
}

function fontsizedown() {
  active = getActiveStyleSheet();
  switch (active) {
    case 'A++' : 
      setActiveStyleSheet('A+');
      break;
    case 'A+' : 
      setActiveStyleSheet('A');
      break;
    case 'A' : 
      setActiveStyleSheet('A-');
      break;
    case 'A-' : 
      setActiveStyleSheet('A--');
      break;
    case 'A--' : 
       break;
    default :
      setActiveStyleSheet('A--');
      break;
  }
}

function highcontrast() {
  active = getActiveStyleSheet();
      setActiveStyleSheet('HC');
}



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() {
  return ('A-');
}

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();
if (title == 'null') {
  title = getPreferredStyleSheet();
}

setActiveStyleSheet(title);