/**
 * All changes made by Sothea Nim on April 1, 2009 is 
 * for text size buttons located in the globaltools of the sites
 */

var dname = window.location.href;
var arr_dname = dname.split('/');
var domainname = arr_dname[2];
var subdomain_tmp = domainname.split('.');
var subdomain = subdomain_tmp[0];

function display(id, mode) {
	if(mode===1)
		document.getElementById(id).style.display = 'block';
	else
		document.getElementById(id).style.display = 'none';
}

function maxlen(val, len) {

	if(val.length > len) {
		alert("You are allowed to enter up to 255 chraracters only!");
	}
	
}

function alertme(variable) {
	alert(variable);
}

function textsizeactive(){
	var textsizetools = document.getElementById("textsizetools");
	/**
	 * COMMENTED BY SOTHEA NIM, April 1, 2009

	textsizetools.innerHTML = '<a href="#" id="text_m">M</a>&middot;<a href="#" id="text_l">L</a>&middot;<a href="#" id="text_xl">XL</a>';
	
	 * ADDED BY SOTHEA, April 1, 2009
	 */
	textsizetools.innerHTML = '<a href="#" id="text_m" onclick="setActiveStyleSheet(\'text_m\'); return false;">M</a>&middot;<a href="#" id="text_l" onclick="setActiveStyleSheet(\'text_l\'); return false;">L</a>&middot;<a href="#" id="text_xl" onclick="setActiveStyleSheet(\'text_xl\'); return false;">XL</a>';
	
	if( !readCookie('searchtab') ) {
		createCookie('searchtab','li_thissite','365');
	}
	
}

function sizebuttons(){
	/*
	 * COMMENTED BY SOTHEA NIM, April 1, 2009
	 *
	var textsizetools = document.getElementById("textsizetools").getElementsByTagName("a");
	for (var i = 0; i < textsizetools.length; i++){
		textsizetools[i].onclick = function(){ setActiveStyleSheet(this.id);  return false;}
	}
	*/
}

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")) {
      if(a.getAttribute("title") == title) a.disabled = false;
      else a.disabled = true;
    }
  }
  setCookie("currentstyle", title, 365, '/');
}

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;
}

//create cookie
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 setCookie( name, value, expires, path, domain, secure ) {
	var today = new Date();
	today.setTime( today.getTime() );
	if ( expires ) {
		expires = expires * 1000 * 60 * 60 * 24;
	}
	var expires_date = new Date( today.getTime() + (expires) );
	document.cookie = name+'='+escape( value ) +
		( ( expires ) ? ';expires='+expires_date.toGMTString() : '' ) +
		( ( path ) ? ';path=' + path : '' ) +
		( ( domain ) ? ';domain=' + domain : '.concordia.ca' ) +
		( ( secure ) ? ';secure' : '' );
}

//get cookie by name
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)
		{
			if(name=='currentstyle' && !(c.substring(nameEQ.length,c.length) == 'text_m' && c.substring(nameEQ.length,c.length) == 'text_l' && c.substring(nameEQ.length,c.length) == 'text_xl'))
			{
				eraseCookie(name);
				createCookie(name,'text_m',365);
				return 'text_m';
			}
			return c.substring(nameEQ.length,c.length);
		}
	}
	return null;
}

//delete cookie by name
function eraseCookie(name) {
    setCookie(name,"",-1);
}
function deleteCookie( name, path, domain ) {
		document.cookie = name + '=' + ( ( path ) ? ';path=' + path : '') + ( ( domain ) ? ';domain=' + domain : '' ) + ';expires=-1';
}


function styleswitcher_onload(){
	var cookie = readCookie("currentstyle");
	var title = cookie ? cookie : getPreferredStyleSheet();
	setActiveStyleSheet(title);
}

function styleswitcher_unload(){
	var title = getActiveStyleSheet();
	setCookie("currentstyle", title, 365, '/');
}

// To be run in the dispatcher

function styleswitcher(){
	
	styleswitcher_onload();	
	
	var cookie = readCookie("currentstyle");
	var title = cookie ? cookie : getPreferredStyleSheet();
	setActiveStyleSheet(title);	
}