var arrDescriptions= null;
var currObject = null;
var timerID;

var hexL = new Array('F','E','D','C');
var hexN = new Array('F','E','D','C','B','A','9','8','7','6','5','4','3','2','1','0');
var hexColors = hexArray();
var globalCounter = hexColors.length-1;

function hexArray(){
var duo = null;
var trio = null;
var arrHex = new Array();
	for(i=0; hexL.length>i; i++){

		for(j=0; hexN.length>j; j++){
			duo = hexL[i]+hexN[j];
			trio = duo + duo + duo;
			arrHex.push(trio);
		}
	}
return arrHex;
}

function fadeBackground(obj){
	obj.style.backgroundColor = '#'+hexColors[globalCounter];
	globalCounter = globalCounter - 1;
	if(globalCounter < 0){
		globalCounter = hexColors.length-1;
		clearInterval(timerID);
	}
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function indexInArray(theArray, theValue){
var arr_Length = theArray.length;
var i;
	for(i=0; i<arr_Length; i++){
		if(theArray[i] == theValue){return i;}}
return -1;
}
function readCookie(cookieName){
  var cookieValue = "";
  var search = cookieName + "=";
  if(document.cookie.length > 0){ 
    offset = document.cookie.indexOf(search);
    if (offset != -1){ 
      offset += search.length;
      end = document.cookie.indexOf(";", offset);
      if (end == -1) end = document.cookie.length;
      cookieValue = unescape(document.cookie.substring(offset, end));
    }
  }
   return cookieValue;
}

function writeCookie(cookieName, cookieValue, cookieExpires){
  var cookieExpiration = "";
  if(cookieExpires != null){
    cookieExpiration = new Date((new Date()).getTime() + cookieExpires * 3600000);
    cookieExpiration = ";domain=.lynda.com;path=/; expires=" + cookieExpiration.toGMTString();
  }
  document.cookie = cookieName + "=" + escape(cookieValue) + cookieExpiration;
}

function copyObjectProperties(setObj,getObj){
var err=null;var i;	
try{if(getObj && setObj){
	for(i in getObj){
	setObj[i] = getObj[i];}}}
catch(e){err=e;}
return (!err)? setObj : err;
}