//** Featured Content Slider script- © Dynamic Drive DHTML code library (http://www.dynamicdrive.com)
//** Last updated: Nov 3rd- 07- Added optional fade transition effect.

////Ajax related settings
var csbustcachevar=0 //bust potential caching of external pages after initial Ajax request? (1=yes, 0=no)
var enabletransition=1 //enable fade into view transition effect? (1=yes, 0=no)
var csloadstatustext="<img src='images/loading_content.gif' /> Requesting content..." //HTML to indicate Ajax page is being fetched
var csexternalfiles=[] //External .css or .js files to load to style the external content(s), if any. Separate multiple files with comma ie: ["cat.css", dog.js"]

////NO NEED TO EDIT BELOW////////////////////////
var enablepersist=true
var slidernodes=new Object() //Object array to store references to each content slider's DIV containers (<div class="contentdiv">)
var csloadedobjects="" //Variable to store file names of .js/.css files already loaded (if Ajax is used)

function ContentSlider(sliderid, autorun, customPaginateText, customNextText){
	var slider=document.getElementById(sliderid)
	if (typeof customPaginateText!="undefined" && customPaginateText!="") //Custom array of pagination links text defined?
		slider.paginateText=customPaginateText
	if (typeof customNextText!="undefined" && customNextText!="") //Custom HTML for "Next" link defined?
		slider.nextText=customNextText
	slidernodes[sliderid]=[] //Array to store references to this content slider's DIV containers (<div class="contentdiv">)
	ContentSlider.loadobjects(csexternalfiles) //Load external .js and .css files, if any
	var alldivs=slider.getElementsByTagName("div")
	for (var i=0; i<alldivs.length; i++){
		if (alldivs[i].className=="opacitylayer")
			slider.opacitylayer=alldivs[i]
		else if (alldivs[i].className=="contentdiv"){
			slidernodes[sliderid].push(alldivs[i]) //add this DIV reference to array
			if (typeof alldivs[i].getAttribute("rel")=="string") //If get this DIV's content via Ajax (rel attr contains path to external page)
				ContentSlider.ajaxpage(alldivs[i].getAttribute("rel"), alldivs[i])
		}
	}
	ContentSlider.buildpagination(sliderid)
	var loadfirstcontent=true
	if (enablepersist && getCookie(sliderid)!=""){ //if enablepersist is true and cookie contains corresponding value for slider
		var cookieval=getCookie(sliderid).split(":") //process cookie value ([sliderid, int_pagenumber (div content to jump to)]
		if (document.getElementById(cookieval[0])!=null && typeof slidernodes[sliderid][cookieval[1]]!="undefined"){ //check cookie value for validity
			ContentSlider.turnpage(cookieval[0], parseInt(cookieval[1])) //restore content slider's last shown DIV
			loadfirstcontent=false
		}
	}
	if (loadfirstcontent==true) //if enablepersist is false, or cookie value doesn't contain valid value for some reason (ie: user modified the structure of the HTML)
		ContentSlider.turnpage(sliderid, 0) //Display first DIV within slider
	if (typeof autorun=="number" && autorun>0) //if autorun parameter (int_miliseconds) is defined, fire auto run sequence
		window[sliderid+"timer"]=setTimeout(function(){ContentSlider.autoturnpage(sliderid, autorun)}, autorun)
}

ContentSlider.buildpagination=function(sliderid){
	var slider=document.getElementById(sliderid)
	var paginatediv=document.getElementById("paginate-"+sliderid) //reference corresponding pagination DIV for slider
	var pcontent=""
	for (var i=0; i<slidernodes[sliderid].length; i++) //For each DIV within slider, generate a pagination link
		pcontent+='<a href="#" onClick=\"ContentSlider.turnpage(\''+sliderid+'\', '+i+'); return false\">'+(slider.paginateText? slider.paginateText[i] : i+1)+'</a> '
	pcontent+='<a href="#" style="font-weight: bold;" onClick=\"ContentSlider.turnpage(\''+sliderid+'\', parseInt(this.getAttribute(\'rel\'))); return false\">'+(slider.nextText || "Next")+'</a>'
	paginatediv.innerHTML=pcontent
	paginatediv.onclick=function(){ //cancel auto run sequence (if defined) when user clicks on pagination DIV
	if (typeof window[sliderid+"timer"]!="undefined")
		clearTimeout(window[sliderid+"timer"])
	}
}

ContentSlider.turnpage=function(sliderid, thepage){
	var paginatelinks=document.getElementById("paginate-"+sliderid).getElementsByTagName("a") //gather pagination links
	for (var i=0; i<slidernodes[sliderid].length; i++){ //For each DIV within slider
		paginatelinks[i].className="" //empty corresponding pagination link's class name
		slidernodes[sliderid][i].style.display="none" //hide DIV
	}
	paginatelinks[thepage].className="selected" //for selected DIV, set corresponding pagination link's class name
	if (enabletransition){
		if (window[sliderid+"fadetimer"])
			clearTimeout(window[sliderid+"fadetimer"])
		this.setopacity(sliderid, 0.1)
	}
	slidernodes[sliderid][thepage].style.display="block" //show selected DIV
	if (enabletransition)
		this.fadeup(sliderid, thepage)
	//Set "Next" pagination link's (last link within pagination DIV) "rel" attribute to the next DIV number to show
	paginatelinks[paginatelinks.length-1].setAttribute("rel", thenextpage=(thepage<paginatelinks.length-2)? thepage+1 : 0)
	if (enablepersist)
		setCookie(sliderid, sliderid+":"+thepage)
}

ContentSlider.autoturnpage=function(sliderid, autorunperiod){
	var paginatelinks=document.getElementById("paginate-"+sliderid).getElementsByTagName("a") //Get pagination links
	var nextpagenumber=parseInt(paginatelinks[paginatelinks.length-1].getAttribute("rel")) //Get page number of next DIV to show
	ContentSlider.turnpage(sliderid, nextpagenumber) //Show that DIV
	window[sliderid+"timer"]=setTimeout(function(){ContentSlider.autoturnpage(sliderid, autorunperiod)}, autorunperiod)
}

ContentSlider.setopacity=function(sliderid, value){ //Sets the opacity of targetobject based on the passed in value setting (0 to 1 and in between)
	var targetobject=document.getElementById(sliderid).opacitylayer || null //reference slider container itself
	if (targetobject && targetobject.filters && targetobject.filters[0]){ //IE syntax
		if (typeof targetobject.filters[0].opacity=="number") //IE6
			targetobject.filters[0].opacity=value*100
		else //IE 5.5
			targetobject.style.filter="alpha(opacity="+value*100+")"
		}
	else if (targetobject && typeof targetobject.style.MozOpacity!="undefined") //Old Mozilla syntax
		targetobject.style.MozOpacity=value
	else if (targetobject && typeof targetobject.style.opacity!="undefined") //Standard opacity syntax
		targetobject.style.opacity=value
	targetobject.currentopacity=value
}

ContentSlider.fadeup=function(sliderid){
	var targetobject=document.getElementById(sliderid).opacitylayer || null //reference slider container itself
	if (targetobject && targetobject.currentopacity<1){
		this.setopacity(sliderid, targetobject.currentopacity+0.1)
		window[sliderid+"fadetimer"]=setTimeout(function(){ContentSlider.fadeup(sliderid)}, 100)
	}
}

function getCookie(Name){ 
	var re=new RegExp(Name+"=[^;]+", "i"); //construct RE to search for target name/value pair
	if (document.cookie.match(re)) //if cookie found
		return document.cookie.match(re)[0].split("=")[1] //return its value
	return ""
}

function setCookie(name, value){
	document.cookie = name+"="+value
}

////////////////Ajax Related functions //////////////////////////////////

ContentSlider.ajaxpage=function(url, thediv){
	var page_request = false
	var bustcacheparameter=""
	if (window.XMLHttpRequest) // if Mozilla, Safari etc
		page_request = new XMLHttpRequest()
	else if (window.ActiveXObject){ // if IE
		try {
		page_request = new ActiveXObject("Msxml2.XMLHTTP")
		} 
		catch (e){
		try{
		page_request = new ActiveXObject("Microsoft.XMLHTTP")
		}
		catch (e){}
		}
	}
	else
		return false
	thediv.innerHTML=csloadstatustext
	page_request.onreadystatechange=function(){
		ContentSlider.loadpage(page_request, thediv)
	}
	if (csbustcachevar) //if bust caching of external page
		bustcacheparameter=(url.indexOf("?")!=-1)? "&"+new Date().getTime() : "?"+new Date().getTime()
	page_request.open('GET', url+bustcacheparameter, true)
	page_request.send(null)
}

ContentSlider.loadpage=function(page_request, thediv){
	if (page_request.readyState == 4 && (page_request.status==200 || window.location.href.indexOf("http")==-1))
		thediv.innerHTML=page_request.responseText
}

ContentSlider.loadobjects=function(externalfiles){ //function to load external .js and .css files. Parameter accepts a list of external files to load (array)
	for (var i=0; i<externalfiles.length; i++){
		var file=externalfiles[i]
		var fileref=""
		if (csloadedobjects.indexOf(file)==-1){ //Check to see if this object has not already been added to page before proceeding
			if (file.indexOf(".js")!=-1){ //If object is a js file
				fileref=document.createElement('script')
				fileref.setAttribute("type","text/javascript");
				fileref.setAttribute("src", file);
			}
			else if (file.indexOf(".css")!=-1){ //If object is a css file
				fileref=document.createElement("link")
				fileref.setAttribute("rel", "stylesheet");
				fileref.setAttribute("type", "text/css");
				fileref.setAttribute("href", file);
			}
		}
		if (fileref!=""){
			document.getElementsByTagName("head").item(0).appendChild(fileref)
			csloadedobjects+=file+" " //Remember this object as being already added to page
		}
	}
}




//////////////////////////
///// Add article to /////
//////////////////////////
var txtVersion = "1.1";
var addtoInterval = null;
var popupWin = '';

var sns = [
	 {name:'Digg',			image: 'AddTo_Digg.png',		url: 'http://digg.com/submit?',				urlVar: 'url',	titleVar: '',		noteVar: '',	returnVar: '',	otherVars: '&phase=2' },
	 {name:'Del.icio.us',	image: 'AddTo_Delicious.png',	url: 'http://del.icio.us/post?',			urlVar: 'url',	titleVar: 'title',	noteVar: '',	returnVar: '',	otherVars: '' },
	 {name:'Google',		image: 'AddTo_Google.png',		url: 'http://www.google.com/bookmarks/mark?',		urlVar: 'bkmk',	titleVar: 'title',	noteVar: '',	returnVar: '',	otherVars: '&op=edit' },
	 {name:'Windows Live',	image: 'AddTo_Live.png',		url: 'https://favorites.live.com/quickadd.aspx?', urlVar: 'url', titleVar: 'title',	noteVar: '',	returnVar: '',	otherVars: '&marklet=1&mkt=en-us&top=1' },
	 {name:'Yahoo! MyWeb',	image: 'AddTo_Yahoo.png',		url: 'http://myweb2.search.yahoo.com/myresults/bookmarklet?', urlVar: 'u', titleVar: 't',	noteVar: '', returnVar: '', otherVars: '&d=&ei=UTF-8' },
	 {name:'Technorati',	image: 'AddTo_Technorati.png',	url: 'http://technorati.com/faves?',		urlVar: 'add',	titleVar: '',		noteVar: '',	returnVar: '',	otherVars: '' },
	 {name:'Blink',			image: 'AddTo_Blink.png',		url: 'http://www.blinklist.com/index.php?', urlVar: 'url', titleVar: 'title', noteVar: 'description', returnVar: '', otherVars: '&Action=Blink/addblink.php' },
	 {name:'Furl',			image: 'AddTo_Furl.png',		url: 'http://www.furl.net/storeIt.jsp?',	urlVar: 'u',	titleVar: 't',		noteVar: '',	returnVar: '',	otherVars: '' },
	 {name:'Simpy',			image: 'AddTo_Simpy.png',		url: 'http://simpy.com/simpy/LinkAdd.do?',	urlVar: 'href',	titleVar: 'title',	noteVar: 'note', returnVar: '_doneURI', otherVars: '&v=6&src=bookmarklet' },
	 {name:'Reddit',		image: 'AddTo_Reddit.png',		url: 'http://reddit.com/submit?',			urlVar: 'url',	titleVar: 'title',	noteVar: '',	returnVar: '',	otherVars: '' },
	 {name:'Newsvine',		image: 'AddTo_Newsvine.png',	url: 'http://www.newsvine.com/_wine/save?',	urlVar: 'u',	titleVar: '',		noteVar: '',	returnVar: '',	otherVars: '&popoff=0' },
	 {name:'Stumbleupon',	image: 'AddTo_stumbleupon.png',	url: 'http://www.stumbleupon.com/submit?',	urlVar: 'url',	titleVar: 'title',		noteVar: '',	returnVar: '',	otherVars: '' },
	 {name:'Mr. Wong',		image: 'AddTo_MrWong.png',		url: 'http://www.mister-wong.com/index.php?',urlVar: 'bm_url',	titleVar: 'bm_description',	noteVar: '', returnVar: '', otherVars: '&action=addurl' }
];

function DrawLink(index, cellClass)
{
	document.write("<a class=\"" + cellClass + "\" title=\"Add this page to " + sns[index].name + "\" ");
	document.write("onclick=\"return addto(" + index.toString() + ");\" href=\"#\"><img align=\"middle\" src=\"Images/AddToImages/" + sns[index].image + "\" ");
	document.write("width=\"16\" height=\"16\" border=\"0\" />" + /*sns[index].name +*/ "</a> ");
}

function DrawLinks(cols, width, headClass, cellClass) 
{
	if (cols > sns.length) 
	{
		document.write("<span class=\"" + headClass + "\">Add this page to: </span> ")
		for (var i = 0; i < sns.length; i++)
		{
			DrawLink(i, cellClass)
			document.write(" ");
		}
	} else {
		document.writeln("<table width=\"" + width.toString() + "\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\"><tr>");
		document.writeln("<tr><td colspan=\"" + cols.toString() + "\" class=\"" + headClass + "\" height=\"20\">Add this article to:</td></tr>");
		for (var i = 0; i < sns.length; i++)
		{
			document.write("<td valign=\"middle\">");
			DrawLink(i, cellClass);
			document.writeln("</td>");
			if ( (((i+1)%cols) == 0) && (i != (sns.length-1))) document.writeln("</tr><tr>");
		}
		document.writeln("</td></tr></table>");
	}
}

function addtoWin(addtoFullURL)
{
	if (!popupWin.closed && popupWin.location){
		popupWin.location.href = addtoFullURL;
		var addtoInterval = setInterval("closeAddTo();",1000);
	}
	else{
		popupWin = window.open(addtoFullURL,'addtoPopUp','width=770px,height=500px,menubar=1,toolbar=1,status=1,location=1,resizable=1,scrollbars=1,left=0,top=100');
		var addtoInterval = setInterval("closeAddTo();",1000);
		if (!popupWin.opener) popupWin.opener = self;
	}
	if (window.focus) {popupWin.focus()}
	return false;
}
// closes the popupWin
function closeAddTo() {
	if (!popupWin.closed && popupWin.location){
		if (popupWin.location.href == AddURL)	//if it's the same url as what was bookmarked, close the win
		popupWin.close();
	}
	else {	//if it's closed - clear the timer
		clearInterval(addtoInterval)
		return true
	}
}

function addto(index){
	var addtoFullURL = sns[index].url + sns[index].urlVar + "=" + AddURL + "&" + sns[index].titleVar + "=" + AddTitle + sns[index].otherVars ;
	if (sns[index].noteVar != "") 
		addtoFullURL = addtoFullURL + "&" + sns[index].noteVar + "=" + AddTitle;
	if (sns[index].returnVar != "")
		addtoFullURL = addtoFullURL + "&" + sns[index].returnVar + "=" + AddURL;

	switch(addtoMethod){
		case 0:	// 0=direct link
			self.location = addtoFullURL
			break
		case 1:	// 1=popup
			addtoWin(addtoFullURL);
			break
		default:	
	}
	return false;
}
//	checking across domains causes errors - this is to suppress these
function handleError() {return true;}
window.onerror = handleError;