function increaseSelectCSS(){
var nextCSS = "";
var currentCSS = getActiveStyleSheet();
	if (currentCSS == null){
	nextCSS = 'Large';
	}
	if (currentCSS == 'Large'){
	nextCSS = 'Largest';
	}
	if (currentCSS == 'Largest'){
	nextCSS = 'Largest';
	}
setActiveStyleSheet(nextCSS, 1);return false;
}
function printerSelectCSS(){
	var currentCSS = getActiveStyleSheet();
	if (currentCSS == 'Printer'){
		setActiveStyleSheet(null, 1);return false;
	}
	else {
		setActiveStyleSheet('Printer', 1);return false;
	}
}
function decreaseSelectCSS(){
var nextCSS = ""
var currentCSS = getActiveStyleSheet();
	if (currentCSS == null){
	nextCSS = null;
	}
	if (currentCSS == 'Large'){
	nextCSS = null;
	}
	if (currentCSS == 'Largest'){
	nextCSS = 'Large';
	}
setActiveStyleSheet(nextCSS, 1);return false;
}
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;
}