// JavaScript Document

// JavaScript Document

var inAccessibleMode = false;

function setActiveStyleSheet(title, reloadPage) {
	var i, a, main;
	var showing;
	
	if ($.browser.msie && $.browser.version.substr(0,1)<7) {
		title = "ie6";
		inAccessibleMode = true;
	}
	
	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;
			}
		}
	}
	
	if(reloadPage)
	{	
		window.location.reload();
	}
	else
	{
		if (title == null || title == 'default'){
		inAccessibleMode = false;
		
		try{ document.getElementById('accessibleLink').innerHTML = 'Accessible Site'; }
		catch(err){ /* supress error */ }

		try {
		    document.getElementById('accessibleLink').href = 'javascript:setActiveStyleSheet("accessible",true);';


		    var hash = location.hash.replace('#', '');

		    if (hash != '') {

		        // Clear the hash in the URL
		        location.hash = '';
		    } 
		}
		catch(err){	/* supress error */ }
		
		enableDropdown();
		}
		else
		{
			inAccessibleMode = true;
			
			try{ document.getElementById('accessibleLink').innerHTML = 'Standard Site'; }
			catch(err){ /* supress error */ }

			try {
			        document.getElementById('accessibleLink').href = 'javascript:setActiveStyleSheet("default",true);';

			        $("a#barnNav_roadshow").attr("href", "#overlay_roadshow");
                    $("a#barnNav_sam").attr("href", "#overlay_sam");
                    $("a#barnNav_fieldCrisp").attr("href", "#overlay_field");
                    $("a#barnNav_tvad").attr("href", "#overlay_TV");
                    $("a#barnNav_signup").attr("href", "#overlay_signUp");
                }
			catch(err){	/* supress error */ }
			
			disableDropdown();
		}
	}
	
}

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 createCookieAcc(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 readCookieAcc(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;
}

/* Text size changer starts here */

var min=13;
var max=60;

function increaseFontSize() {
   var p = document.getElementsByTagName('p');
   for(i=0;i<p.length;i++) {
      if(p[i].style.fontSize) {
         var s = parseInt(p[i].style.fontSize.replace("px",""));
      } else {
         var s = 13;
      }
      if(s!=max) {
         s += 1;
      }
      p[i].style.fontSize = s+"px"
   }
   var div = document.getElementsByTagName('div');
   for(i=0;i<div.length;i++) {
      if(div[i].style.fontSize) {
         var s = parseInt(div[i].style.fontSize.replace("divx",""));
      } else {
         var s = 13;
      }
      if(s!=max) {
         s += 1;
      }
      div[i].style.fontSize = s+"px"
   }
}

function decreaseFontSize() {
   var p = document.getElementsByTagName('p');
   for(i=0;i<p.length;i++) {
      if(p[i].style.fontSize) {
         var s = parseInt(p[i].style.fontSize.replace("px",""));
      } else {
         var s = 13;
      }
      if(s!=min) {
         s -= 1;
      }
      p[i].style.fontSize = s+"px"
   }  
   var div = document.getElementsByTagName('div');
   for(i=0;i<div.length;i++) {
      if(div[i].style.fontSize) {
         var s = parseInt(div[i].style.fontSize.replace("divx",""));
      } else {
         var s = 13;
      }
      if(s!=min) {
         s -= 1;
      }
      div[i].style.fontSize = s+"px"
   } 
}

function setFontSize(s) {
   var p = document.getElementsByTagName('p');
   for(i=0;i<p.length;i++) {
      p[i].style.fontSize = s+"px"
   }
   var div = document.getElementsByTagName('div');
   for(i=0;i<div.length;i++) {
      div[i].style.fontSize = s+"px"
   }
}

function getFontSize() {
   var p = document.getElementsByTagName('p');
   for(i=0;i<p.length;i++) {
      if(p[i].style.fontSize) {
         var s = parseInt(p[i].style.fontSize.replace("px",""));
      } else {
         var s = 13;
      }
   }  
   return s;
}

function createCookieSize(name,value,days) {
  if (days) {
    var date_size = new Date();
    date_size.setTime(date_size.getTime()+(days*24*60*60*1000));
    var expires_size = "; expires="+date_size.toGMTString();
  }
  else expires_size = "";
  document.cookie = name+"="+value+expires_size+"; path=/";
}

function readCookieSize(name) {
  var nameEQ_size = name + "=";
  var ca_size = document.cookie.split(';');
  for(var x=0;x < ca_size.length;x++) {
    var c_size = ca_size[x];
    while (c_size.charAt(0)==' ') c_size = c_size.substring(1,c_size.length);
    if (c_size.indexOf(nameEQ_size) == 0) return c_size.substring(nameEQ_size.length,c_size.length);
  }
  return null;
}

/* do the cookies...*/

window.onload = function(a) {
	var cookie2 = readCookieAcc("style");
	var title = cookie ? cookie2 : getPreferredStyleSheet();
	setActiveStyleSheet(title,false);
  
  /* var cookie1 = readCookieSize("textsize");
  var s = cookie ? cookie1 : getFontSize();
  setFontSize(s); */
}

window.onunload = function(a) {
  var title = getActiveStyleSheet();
  createCookieAcc("style", title, 365);
  
  var s = getFontSize();
  createCookieSize("textsize", s, 365);
}

var cookie = readCookieSize("textsize");
var s = cookie ? cookie : getFontSize();
setFontSize(s);

var cookie = readCookieAcc("style");
var title = cookie ? cookie : getPreferredStyleSheet();
setActiveStyleSheet(title,false);