function changeStyleSheet()
{
	var sCurrent = getActiveStyleSheet();
	switch (sCurrent)
	{
		case 'fontsize_small' :
			setActiveStyleSheet('fontsize_standard');
			break;
		case 'fontsize_standard' :
			setActiveStyleSheet('fontsize_large');
			break;
		case 'fontsize_large' :
			setActiveStyleSheet('fontsize_small');
			break;
	}
}

/*function changeStyleSheet(bIncrease) {
	var sCurrent = getActiveStyleSheet();
	if (bIncrease) {
		switch (sCurrent) {
			case 'fontsize_small' :
				setActiveStyleSheet('fontsize_standard');
				img_sidebar_font_smaller_off.src = "/images/sidebar_btn_font_smaller.gif";
				img_sidebar_font_smaller_on.src = "/images/sidebar_btn_font_smaller_f2.gif";
				document.img_sidebar_font_smaller.src = img_sidebar_font_smaller_off.src;
				break;
			case 'fontsize_standard' :
				setActiveStyleSheet('fontsize_large');
				img_sidebar_font_larger_off.src = "/images/spacer.gif";
				img_sidebar_font_larger_on.src = "/images/spacer.gif";
				break;
		}
	} else {
		switch (sCurrent) {
			case 'fontsize_large' :
				setActiveStyleSheet('fontsize_standard');
				img_sidebar_font_larger_off.src = "/images/sidebar_btn_font_larger.gif";
				img_sidebar_font_larger_on.src = "/images/sidebar_btn_font_larger_f2.gif";
				document.img_sidebar_font_larger.src = img_sidebar_font_larger_off.src;
				break;
			case 'fontsize_standard' :
				setActiveStyleSheet('fontsize_small');
				img_sidebar_font_smaller_off.src = "/images/spacer.gif";
				img_sidebar_font_smaller_on.src = "/images/spacer.gif";
				break;
		}
	}
}*/

function setActiveStyleSheet(title) {
  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") == title) a.disabled = false;
    }
  }
}

function getActiveStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title") && !a.disabled) return a.getAttribute("title");
  }
  return null;
}

function getPreferredStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1
       && a.getAttribute("rel").indexOf("alt") == -1
       && a.getAttribute("title")
       ) return a.getAttribute("title");
  }
  return null;
}

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 = function(e) {
  var cookie = readCookie("style");
  var title = cookie ? cookie : getPreferredStyleSheet();
  setActiveStyleSheet(title);
}

window.onunload = function(e) {
  var title = getActiveStyleSheet();
  createCookie("style", title, 365);
}

var cookie = readCookie("style");
var title = cookie ? cookie : getPreferredStyleSheet();
setActiveStyleSheet(title);