var prefsLoaded = false;
var defaultFontSize = 76;
var currentFontSize = defaultFontSize;
var currentStyle = "Fixed";

function revertStyles(){

	currentFontSize = defaultFontSize;
	changeFontSize(0);
	

}

function switchFluid(){
	if(currentStyle == "Fluid"){
		setWidth("Fixed");
	}
}
function switchFixed(){
	if(currentStyle == "Fixed"){
		setWidth("Fluid");
	}
}

function setWidth(width){
	d=new Date();
	flash=Math.round(Math.random()*d.getTime());
	if(width != "Fixed"){
		document.body.className = 'bodyfluid';
		currentStyle = "Fluid";
	}else{
		document.body.className = '';
		currentStyle = "Fixed";
	}
}

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

	if(currentFontSize > 100){
		currentFontSize = 100;
	}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 = setWidthFont;

function setWidthFont(){
	if(!prefsLoaded){

		cookie = readCookie("fontSize");
		currentFontSize = cookie ? cookie : defaultFontSize;
		setFontSize(currentFontSize);
		
		cookie = readCookie("pageWidth");
		currentStyle = cookie ? cookie : "Fixed";
		setWidth(currentStyle);
		prefsLoaded = true;
	}

}

window.onunload = saveSettings;

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