/******************************/
/* Function: Change Font Size */
/******************************/
function changeFontSize(size) {
	if (size == null)
	{
		size = readCookie("size");
		if (size == null || size == 'null')
			return false;
	}
	var normalSize = "0.76em";
	var biggerSize = "1.0em";
	var biggestSize = "1.2em";
	switch (size) {
		case "normal":
			document.body.style.fontSize = normalSize;
			break;
		case "bigger":
			document.body.style.fontSize = biggerSize;
			break;
		case "biggest":
			document.body.style.fontSize = biggestSize;
			break;
		default:
			document.body.style.fontSize = normalSize;
	}
	createCookie("size", size, 365);
}

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;
}