var prefsLoaded = false;
var defaultFontSize = 80;
var currentFontSize = defaultFontSize;
var curWidth = '';

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 > 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 = setUserOptions;

function setUserOptions(){
	if(!prefsLoaded){

		cookie = readCookie("fontSize");
		currentFontSize = cookie ? cookie : defaultFontSize;
		setFontSize(currentFontSize);
		
		prefsLoaded = true;
		
		cc = readCookie("curWidth");
		currentWidth = cc ? cc : curWidth;
		setActiveStyleSheet(currentWidth);
	}

}

window.onunload = saveSettings;

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



function toggleFluid(){
	var switchTo = (currentStyle == "Fixed") ? "Fluid" : "Fixed";

	document.body.className = switchTo;

}


function setWidth(width){
	
	if(width != "Fluid"){
		document.body.className = '';
		currentStyle = "Fixed";
	}else{
		document.body.className = 'bodyfluid';
		currentStyle = "Fluid";
	}
}
	
	
		function setActiveStyleSheet(title) {
	  var i, a, main;
		curWidth = title;
		createCookie("curWidth",title,100);
	  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;
	    }
	  }
	}

	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;
	}