// JavaScript Document

//TEXT RESIZE
var prefsLoaded = false;
var defaultFontSize = 65;
var currentFontSize = defaultFontSize;

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 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 revertStyles(){
 currentFontSize = defaultFontSize;
 changeFontSize(0);
}

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

 if(currentFontSize > 92){
 currentFontSize = 92;
 }else if(currentFontSize < 58){
 currentFontSize = 58;
 }

 setFontSize(currentFontSize);
 createCookie("fontSize", currentFontSize, 365);
}

function setFontSize(fontSize){
 var stObj = (document.getElementById) ? document.getElementById('main') : document.all('main');
 document.body.style.fontSize = fontSize + '%';
}


function setUserOptions(){
 if(!prefsLoaded){

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

 prefsLoaded = true;
 }

}