var prefsLoaded = false;
var defaultFontSize =100;
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 * 1);
	//alert(currentFontSize)

	if(currentFontSize > 220){
		currentFontSize = 220;
	}else if(currentFontSize < 60){
		currentFontSize = 60;
	}
	
	/*if(currentFontSize > 70){
		currentFontSize = 70;
	}else if(currentFontSize < 1){
		currentFontSize = 1;
	}*/

	setFontSize(currentFontSize);
};

function setFontSize(fontSize){
	
	//var stObj = (document.getElementById) ? document.getElementById('content_area') : document.all('content_area');
	//document.body.style.fontSize = fontSize + '%';
 	
	//tags = new Array ('body', 'div', 'a', 'td', 'th', 'p', 'span', 'h1', 'h2', 'h3', 'table', 'tr');
	tags = new Array ( 'div', 'a', 'td', 'th', 'p', 'span', 'font');
    for (j = 0; j < tags.length; j ++) {
		
		 //alert ( tags[j] + " === " + document.getElementsByTagName(tags[j]).length);
		
		  for (i=0; i < document.getElementsByTagName(tags[j]).length; i++)
		{
      		
			  
			var getbody = document.getElementsByTagName(tags[j]).item(i);
      		if (getbody) {
        		getbody.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);
}*/