var prefsLoaded = false;
var defaultFontSize =75;
var currentFontSize = defaultFontSize;

function revertStyles(){

	currentFontSize = defaultFontSize;
	changeFontSize(0);

}

function toggleColors(){
	if(currentStyle == "White"){
		setColor("Black");
	}else{
		setColor("White");
	}
}

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

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

	setFontSize(currentFontSize);
};

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

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


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 = setUserOptions;

function setUserOptions(){
	if(!prefsLoaded){

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

		prefsLoaded = true;
	}

}

window.onunload = saveSettings;

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



var tmr;
var intvl;
var curr_link;
function focusto(who,pad_x,pad_y){
	if(typeof(who)=="object")curr_link = who;
	var f = document.getElementById("imgfocus");
	var i = document.getElementById("pngfocus");
	if(pad_x){
		if(tmr){clearTimeout(tmr);tmr=null;}
		f.style.left = pad_x; 
		f.style.top = pad_y;
		i.width=12;
		i.height=12;
		f.style.visibility = "visible";
		focuson();
	}else if(who==true){
		if(tmr){clearTimeout(tmr);tmr=null;}
	}else{
		tmr = setTimeout("focusoff()",40);
	}
}
function focuson(){
	if(intvl){clearInterval(intvl);intvl=null;}
	intvl = setInterval("popin()",1);
}
var dia=12;
function popin(){
	var i = document.getElementById("pngfocus");
	dia+=5;
	i.width = dia;
	i.height = dia;
	if(dia==112){clearInterval(intvl);intvl=null;dia=12;}
}
function focusoff(){
	document.getElementById("imgfocus").style.visibility = "hidden";
}
function activatelink(){
	focusto();
	window.location.href=curr_link.href;
}