/**
 * @author joaopaulo
 */
// JavaScript Document
var prefsLoaded = false;
var defaultFontSize =100;
var currentFontSize = defaultFontSize;

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 {
    var 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;
}

function setFontSize(sfontSize){
   var stObj = (document.getElementById) ? document.getElementById('mycontent') : document.all('mycontent');
   //document.body.style.fontSize = sfontSize + '%';
   document.getElementById('content').style.width = '550px';
   document.getElementById('content').style.fontSize = sfontSize + '%';
   //document.getElementById('style1').style.fontSize = sfontSize;

   //alert (document.body.style.fontSize);
}

function changeFontSize(sizeDifference){
   currentFontSize = parseInt(currentFontSize) + parseInt(sizeDifference * 5);

   if(currentFontSize > 220){
      currentFontSize = 220;
   }else if(currentFontSize < 60){
      currentFontSize = 60;
   }

   setFontSize(currentFontSize);
   //return null;
}

function revertStyles(){

   currentFontSize = defaultFontSize;
   changeFontSize(0);

}


function setUserOptions(){
   if(prefsLoaded == false){

      cookie = readCookie("fontSize");
      currentFontSize = cookie ? cookie : defaultFontSize;
      setFontSize(currentFontSize);

      prefsLoaded = true;
   }

}

//window.onload = setUserOptions();

function saveSettings()
{
  createCookie("fontSize", currentFontSize, 365);
}

//window.onunload = saveSettings();