//alert(document.cookie.indexOf('small')+" "+document.cookie.indexOf('medium')+" "+document.cookie.indexOf('large'));

function chooseStyle (newstyle){
	var expdate = new Date();
  	expdate.setTime(expdate.getTime() + (1000*3600*24*365));
  	document.cookie = newstyle + '; expires=' + expdate.toGMTString() + '; path=/';
      setActiveStyleSheet(newstyle);
}

function setActiveStyleSheet(newstyle) {
//alert(newstyle);
  var i, a, main;
  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") == newstyle) a.disabled = false;
    }
  }
}

function getPreferred() {
	if(document.cookie.indexOf('small')>=0) {
		setActiveStyleSheet('small');
	}
	else if(document.cookie.indexOf('medium')>=0) {
		setActiveStyleSheet('medium');
	}
	else if(document.cookie.indexOf('large')>=0) {
		setActiveStyleSheet('large');
	}
	else
	{
		setActiveStyleSheet('medium');
	}
}