function changelinkclass(linkname) {
	var links = new Array('small','medium','large','xlarge');
	for (var i in links) {
		document.getElementById('text_' + links[i]).style.color='#000';
	}
	document.getElementById('text_' + linkname).style.color='#DD137B';
}
		   
function changeTextSize(filename){
  var fileref=document.createElement("link");
  fileref.setAttribute("rel", "stylesheet");
  fileref.setAttribute("type", "text/css");
  fileref.setAttribute("href", "/global/css/textsize/default-" + filename + ".css");
  createCookie('fontsize',filename,7);
  changelinkclass(filename);
 if (typeof fileref!="undefined") document.getElementsByTagName("head")[0].appendChild(fileref);
}

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 var 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;
}

function eraseCookie(name) {
	createCookie(name,"",-1);
}

function checkCookie() {
	if (readCookie('fontsize')) {
		changeTextSize(readCookie('fontsize'));
		changelinkclass(readCookie('fontsize'));
	} else {
		changeTextSize('medium');
		changelinkclass('medium');
	}
}