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('default');
 //createCookie("style", title, 365);
//}

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

window.onload = function(e) {
  //check for print friendly
  
  
  var checkPrint = ParseQueryString('printfriendly');
  if (checkPrint == "true")
  {
  	//use print friendly style
  	setActiveStyleSheet('print');
  }
  else   //otherwise use style from the cookie
  {
  	setActiveStyleSheet('default');
  
 	//var cookie = readCookie("style");
  	//var title = cookie ? cookie : getPreferredStyleSheet();
	
  	//setActiveStyleSheet(title); 
  }
 
}
//setActiveStyleSheet(title);

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

function ParseQueryString(val) {
	qs = window.location.search.substring(1);
	splitQs = qs.split("&");
	for (i=0;i<splitQs.length;i++) {
		splitItem = splitQs[i].split("=");
		if (splitItem[0] == val) {
			return splitItem[1];
		}
	}
}



  var checkPrint = ParseQueryString('printfriendly');
  if (checkPrint == "true")
  {
  	//use print friendly style
  	setActiveStyleSheet('print');
  }
  else   //otherwise use style from the cookie
  {
  	setActiveStyleSheet('default'); 
  }