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;
    }
  }
  createCookie("style", title, 365);
}

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+"/";
}

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;
}


//retrieve pageQuery used in dynamically embedding swfs in windows---used in swfViewPop.html files 
function PageQuery(q) {
			  if(q.length > 1) this.q = q.substring(1, q.length);
			  else this.q = null;
			  this.keyValuePairs = new Array();
			  if(q) {
				  for(var i=0; i < this.q.split("&").length; i++) {
					  this.keyValuePairs[i] = this.q.split("&")[i];
				  }
			  }
			  this.getKeyValuePairs = function() { return this.keyValuePairs; }
			  this.getValue = function(s) {
				  for(var j=0; j < this.keyValuePairs.length; j++) {
					  if(this.keyValuePairs[j].split("=")[0] == s)
						  return this.keyValuePairs[j].split("=")[1];
				  }
				  return false;
			  }
			  this.getParameters = function() {
				  var a = new Array(this.getLength());
				  for(var j=0; j < this.keyValuePairs.length; j++) {
					  a[j] = this.keyValuePairs[j].split("=")[0];
				  }
				  return a;
			  }
			  this.getLength = function() { return this.keyValuePairs.length; }	
		  }
function queryString(key){
var page = new PageQuery(window.location.search); 
return unescape(page.getValue(key)); 
}
function displayItem(key){
if(queryString(key)=='false') 
{
result.innerHTML="you didn't enter a ?name=value querystring item.";
}else{
result.innerHTML+=queryString(key)+"<BR>";
}
}

function popupCentered(url, popWidth, popHeight) 
{
 var width  = popWidth;
 var height = popHeight;
 var left   = (screen.width  - width)/2;
 var top    = (screen.height - height)/2;
 var params = 'width='+width+', height='+height;
 params += ', top='+top+', left='+left;
 params += ', directories=no';
 params += ', location=no';
 params += ', menubar=no';
 params += ', resizable=yes';
 params += ', scrollbars=no';
 params += ', status=no';
 params += ', toolbar=no';
 newwin=window.open(url,'windowname5', params);
 if (window.focus) {newwin.focus()}
 return false;
}



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);