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 switchStyle() {
  if(document.getElementById('mainstylesheet').getAttribute('href') == "empathy/tplfiles/css/hardingandyorke.css") {
    
    document.getElementById('mainstylesheet').href = 'empathy/tplfiles/css/hardingandyorkebig.css';
    
    document.getElementById('switchlink').title = 'Make text smaller';
    document.getElementById('switchimg').src = 'empathy/images/FONTMINUS.gif';
    createCookie('textsize', 'big', 31);
    
  } else {
    
      if (document.getElementById('mainstylesheet').getAttribute('href') == "empathy/tplfiles/css/hardingandyorkebig.css") {
      document.getElementById('mainstylesheet').href = 'empathy/tplfiles/css/hardingandyorke.css';
      
      document.getElementById('switchlink').title = 'Make text bigger';
      document.getElementById('switchimg').src = 'empathy/images/FONTPLUS.gif';
      
      eraseCookie('textsize');
      
    } else {
      
      alert('Does not meet criteria of either stylesheet');
      
    }
    
  }

  
  return false;
}