// JS CORNERS

// Contributors 

// Ilkka Huotari at http://www.editsite.net

// Mathieu 'p01' HENRI at http://www.p01.org/

// http://seky.nahory.net/2005/04/rounded-corners/

// Steven Wittens at http://www.acko.net/anti-aliased-nifty-corners

// Original Nifty Corners by Alessandro Fulciniti at http://pro.html.it/esempio/nifty/

function NiftyCheck() {

  if(!document.getElementById || !document.createElement) {

    return false;

  }

  var b = navigator.userAgent.toLowerCase();

  if (b.indexOf("msie 5") > 0 && b.indexOf("opera") == -1) {

    return false;

  }

  return true;

}



function Rounded(className, sizex, sizey, sizex_b, sizey_b) {

	var bk;

	if (!NiftyCheck()) return;

	if (typeof(sizex_b) == 'undefined')

		sizex_b = sizex;

	if (typeof(sizey_b) == 'undefined')

		sizey_b = sizey;

	var v = getElements(className);

	var l = v.length;

	for (var i = 0; i < l; i++) {

		color = get_current_style(v[i],"background-color","transparent");

		bk = get_current_style(v[i].parentNode,"background-color","transparent");

		AddRounded(v[i], bk, color, sizex, sizey, true);

		AddRounded(v[i], bk, color, sizex_b, sizey_b, false);

	}

}



Math.sqr = function (x) {

  return x*x;

};



function Blend(a, b, alpha) {



  var ca = Array(

    parseInt('0x' + a.substring(1, 3)), 

    parseInt('0x' + a.substring(3, 5)), 

    parseInt('0x' + a.substring(5, 7))

  );

  var cb = Array(

    parseInt('0x' + b.substring(1, 3)), 

    parseInt('0x' + b.substring(3, 5)), 

    parseInt('0x' + b.substring(5, 7))

  );

  return '#' + ('0'+Math.round(ca[0] + (cb[0] - ca[0])*alpha).toString(16)).slice(-2).toString(16)

             + ('0'+Math.round(ca[1] + (cb[1] - ca[1])*alpha).toString(16)).slice(-2).toString(16)

             + ('0'+Math.round(ca[2] + (cb[2] - ca[2])*alpha).toString(16)).slice(-2).toString(16);



  return '#' + ('0'+Math.round(ca[0] + (cb[0] - ca[0])*alpha).toString(16)).slice(-2).toString(16)

             + ('0'+Math.round(ca[1] + (cb[1] - ca[1])*alpha).toString(16)).slice(-2).toString(16)

             + ('0'+Math.round(ca[2] + (cb[2] - ca[2])*alpha).toString(16)).slice(-2).toString(16);

}



function AddRounded(el, bk, color, sizex, sizey, top) {

  if (!sizex && !sizey)

	return;

  var i, j;

  var d = document.createElement("div");

  d.style.backgroundColor = bk;

  var lastarc = 0;

  for (i = 1; i <= sizey; i++) {

    var coverage, arc2, arc3;

    // Find intersection of arc with bottom of pixel row

    arc = Math.sqrt(1.0 - Math.sqr(1.0 - i / sizey)) * sizex;

    // Calculate how many pixels are bg, fg and blended.

    var n_bg = sizex - Math.ceil(arc);

    var n_fg = Math.floor(lastarc);

    var n_aa = sizex - n_bg - n_fg;

    // Create pixel row wrapper

    var x = document.createElement("div");

    var y = d;

    x.style.margin = "0px " + n_bg + "px";

	x.style.height='1px';

	x.style.overflow='hidden';

    // Make a wrapper per anti-aliased pixel (at least one)

    for (j = 1; j <= n_aa; j++) {

      // Calculate coverage per pixel

      // (approximates circle by a line within the pixel)

      if (j == 1) {

        if (j == n_aa) {

          // Single pixel

          coverage = ((arc + lastarc) * .5) - n_fg;

        }

        else {

          // First in a run

          arc2 = Math.sqrt(1.0 - Math.sqr((sizex - n_bg - j + 1) / sizex)) * sizey;

          coverage = (arc2 - (sizey - i)) * (arc - n_fg - n_aa + 1) * .5;

          // Coverage is incorrect. Why?

          coverage = 0;

        }

      }

      else if (j == n_aa) {

        // Last in a run

        arc2 = Math.sqrt(1.0 - Math.sqr((sizex - n_bg - j + 1) / sizex)) * sizey;

        coverage = 1.0 - (1.0 - (arc2 - (sizey - i))) * (1.0 - (lastarc - n_fg)) * .5;

      }

      else {

        // Middle of a run

        arc3 = Math.sqrt(1.0 - Math.sqr((sizex - n_bg - j) / sizex)) * sizey;

        arc2 = Math.sqrt(1.0 - Math.sqr((sizex - n_bg - j + 1) / sizex)) * sizey;

        coverage = ((arc2 + arc3) * .5) - (sizey - i);

      }

      

      x.style.backgroundColor = Blend(bk, color, coverage);

	  if (top)

	      y.appendChild(x);

      else

	      y.insertBefore(x, y.firstChild);

      y = x;

      var x = document.createElement("div");

		x.style.height='1px';

		x.style.overflow='hidden';

      x.style.margin = "0px 1px";

    }

    x.style.backgroundColor = color;

    if (top)

	    y.appendChild(x);

    else

		y.insertBefore(x, y.firstChild);

    lastarc = arc;

  }

  if (top)

	  el.insertBefore(d, el.firstChild);

  else

	  el.appendChild(d);

}



function getElements(className) {

	var elements = [];

	var el = document.getElementsByTagName('DIV');  

	var regexp=new RegExp("\\b"+className+"\\b");

	for (var i = 0; i < el.length; i++) 

	{

		if (regexp.test(el[i].className)) 

			elements.push(el[i]);

	}

	return elements;

}



function get_current_style(element,property,not_accepted)

{

  var ee,i,val,apr;

  try

  {

    var cs=document.defaultView.getComputedStyle(element,'');

    val=cs.getPropertyValue(property);

  }

  catch(ee)

  {

    if(element.currentStyle)

  	{

	    apr=property.split("-");

	    for(i=1;i<apr.length;i++) apr[i]=apr[i].toUpperCase();

	    apr=apr.join("");

	    val=element.currentStyle.getAttribute(apr);

   }

  }

  if((val.indexOf("rgba") > -1 || val==not_accepted) && element.parentNode)

  {

	 if(element.parentNode != document) 

		 val=get_current_style(element.parentNode,property,not_accepted);

	 else

		 val = '#FFFFFF';

  }

  if (val.indexOf("rgb") > -1 && val.indexOf("rgba") == -1)

	  val = rgb2hex(val);

  if (val.length == 4)

	  val = '#'+val.substring(1,1)+val.substring(1,1)+val.substring(2,1)+val.substring(2,1)+val.substring(3,1)+val.substring(3,1);

  return val;

}



function rgb2hex(value)

{

	var x = 255;

	var hex = '';

	var i;

	var regexp=/([0-9]+)[, ]+([0-9]+)[, ]+([0-9]+)/;

	var array=regexp.exec(value);

	for(i=1;i<4;i++) hex += ('0'+parseInt(array[i]).toString(16)).slice(-2);

	return '#'+hex;

}



//** Featured Content Slider script- (c) Dynamic Drive DHTML code library: http://www.dynamicdrive.com.

//** May 2nd, 08'- Script rewritten and updated to 2.0.

//** June 12th, 08'- Script updated to v 2.3, which adds the following features:

			//1) Changed behavior of script to actually collapse the previous content when the active one is shown, instead of just tucking it underneath the later.

			//2) Added setting to reveal a content either via "click" or "mouseover" of pagination links (default is former).

			//3) Added public function for jumping to a particular slide within a Featured Content instance using an arbitrary link, for example.



//** July 11th, 08'- Script updated to v 2.4:

			//1) Added ability to select a particular slide when the page first loads using a URL parameter (ie: mypage.htm?myslider=4 to select 4th slide in "myslider")

			//2) Fixed bug where the first slide disappears when the mouse clicks or mouses over it when page first loads.



var featuredcontentslider={



//3 variables below you can customize if desired:

ajaxloadingmsg: '<div style="margin: 20px 0 0 20px"><img src="images/loading.gif" /> Fetching slider Contents. Please wait...</div>',

bustajaxcache: true, //bust caching of external ajax page after 1st request?

enablepersist: true, //persist to last content viewed when returning to page?



settingcaches: {}, //object to cache "setting" object of each script instance



jumpTo:function(fcsid, pagenumber){ //public function to go to a slide manually.

	this.turnpage(this.settingcaches[fcsid], pagenumber)

},



ajaxconnect:function(setting){

	var page_request = false

	if (window.ActiveXObject){ //Test for support for ActiveXObject in IE first (as XMLHttpRequest in IE7 is broken)

		try {

		page_request = new ActiveXObject("Msxml2.XMLHTTP")

		} 

		catch (e){

			try{

			page_request = new ActiveXObject("Microsoft.XMLHTTP")

			}

			catch (e){}

		}

	}

	else if (window.XMLHttpRequest) // if Mozilla, Safari etc

		page_request = new XMLHttpRequest()

	else

		return false

	var pageurl=setting.contentsource[1]

	page_request.onreadystatechange=function(){

		featuredcontentslider.ajaxpopulate(page_request, setting)

	}

	document.getElementById(setting.id).innerHTML=this.ajaxloadingmsg

	var bustcache=(!this.bustajaxcache)? "" : (pageurl.indexOf("?")!=-1)? "&"+new Date().getTime() : "?"+new Date().getTime()

	page_request.open('GET', pageurl+bustcache, true)

	page_request.send(null)

},



ajaxpopulate:function(page_request, setting){

	if (page_request.readyState == 4 && (page_request.status==200 || window.location.href.indexOf("http")==-1)){

		document.getElementById(setting.id).innerHTML=page_request.responseText

		this.buildpaginate(setting)

	}

},



buildcontentdivs:function(setting){

	var alldivs=document.getElementById(setting.id).getElementsByTagName("div")

	for (var i=0; i<alldivs.length; i++){

		if (this.css(alldivs[i], "contentdiv", "check")){ //check for DIVs with class "contentdiv"

			setting.contentdivs.push(alldivs[i])

				alldivs[i].style.display="none" //collapse all content DIVs to begin with

		}

	}

},



buildpaginate:function(setting){

	this.buildcontentdivs(setting)

	var sliderdiv=document.getElementById(setting.id)

	var pdiv=document.getElementById("paginate-"+setting.id)

	var phtml=""

	var toc=setting.toc

	var nextprev=setting.nextprev

	if (typeof toc=="string" && toc!="markup" || typeof toc=="object"){

		for (var i=1; i<=setting.contentdivs.length; i++){

			phtml+='<a href="#'+i+'" class="toc">'+(typeof toc=="string"? toc.replace(/#increment/, i) : toc[i-1])+'</a> '

		}

		phtml=(nextprev[0]!=''? '<a href="#prev" class="prev">'+nextprev[0]+'</a> ' : '') + phtml + (nextprev[1]!=''? '<a href="#next" class="next">'+nextprev[1]+'</a>' : '')

		pdiv.innerHTML=phtml

	}

	var pdivlinks=pdiv.getElementsByTagName("a")

	var toclinkscount=0 //var to keep track of actual # of toc links

	for (var i=0; i<pdivlinks.length; i++){

		if (this.css(pdivlinks[i], "toc", "check")){

			if (toclinkscount>setting.contentdivs.length-1){ //if this toc link is out of range (user defined more toc links then there are contents)

				pdivlinks[i].style.display="none" //hide this toc link

				continue

			}

			pdivlinks[i].setAttribute("rel", ++toclinkscount) //store page number inside toc link

			pdivlinks[i][setting.revealtype]=function(){

				featuredcontentslider.turnpage(setting, this.getAttribute("rel"))

				return false

			}

			setting.toclinks.push(pdivlinks[i])

		}

		else if (this.css(pdivlinks[i], "prev", "check") || this.css(pdivlinks[i], "next", "check")){ //check for links with class "prev" or "next"

			pdivlinks[i].onclick=function(){

				featuredcontentslider.turnpage(setting, this.className)

				return false

			}

		}

	}

	this.turnpage(setting, setting.currentpage, true)

	if (setting.autorotate[0]){ //if auto rotate enabled

		pdiv[setting.revealtype]=function(){

			featuredcontentslider.cleartimer(setting, window["fcsautorun"+setting.id])

		}

		sliderdiv["onclick"]=function(){ //stop content slider when slides themselves are clicked on

			featuredcontentslider.cleartimer(setting, window["fcsautorun"+setting.id])

		}

		setting.autorotate[1]=setting.autorotate[1]+(1/setting.enablefade[1]*50) //add time to run fade animation (roughly) to delay between rotation

	 this.autorotate(setting)

	}

},



urlparamselect:function(fcsid){

	var result=window.location.search.match(new RegExp(fcsid+"=(\\d+)", "i")) //check for "?featuredcontentsliderid=2" in URL

	return (result==null)? null : parseInt(RegExp.$1) //returns null or index, where index (int) is the selected tab's index

},



turnpage:function(setting, thepage, autocall){

	var currentpage=setting.currentpage //current page # before change

	var totalpages=setting.contentdivs.length

	var turntopage=(/prev/i.test(thepage))? currentpage-1 : (/next/i.test(thepage))? currentpage+1 : parseInt(thepage)

	turntopage=(turntopage<1)? totalpages : (turntopage>totalpages)? 1 : turntopage //test for out of bound and adjust

	if (turntopage==setting.currentpage && typeof autocall=="undefined") //if a pagination link is clicked on repeatedly

		return

	setting.currentpage=turntopage

	setting.contentdivs[turntopage-1].style.zIndex=++setting.topzindex

	this.cleartimer(setting, window["fcsfade"+setting.id])

	setting.cacheprevpage=setting.prevpage

	if (setting.enablefade[0]==true){

		setting.curopacity=0

		this.fadeup(setting)

	}

	if (setting.enablefade[0]==false){ //if fade is disabled, fire onChange event immediately (verus after fade is complete)

		setting.contentdivs[setting.prevpage-1].style.display="none" //collapse last content div shown (it was set to "block")

		setting.onChange(setting.prevpage, setting.currentpage)

	}

	setting.contentdivs[turntopage-1].style.visibility="visible"

	setting.contentdivs[turntopage-1].style.display="block"

	if (setting.prevpage<=setting.toclinks.length) //make sure pagination link exists (may not if manually defined via "markup", and user omitted)

		this.css(setting.toclinks[setting.prevpage-1], "selected", "remove")

	if (turntopage<=setting.toclinks.length) //make sure pagination link exists (may not if manually defined via "markup", and user omitted)

		this.css(setting.toclinks[turntopage-1], "selected", "add")

	setting.prevpage=turntopage

	if (this.enablepersist)

		this.setCookie("fcspersist"+setting.id, turntopage)

},



setopacity:function(setting, value){ //Sets the opacity of targetobject based on the passed in value setting (0 to 1 and in between)

	var targetobject=setting.contentdivs[setting.currentpage-1]

	if (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 (typeof targetobject.style.MozOpacity!="undefined") //Old Mozilla syntax

		targetobject.style.MozOpacity=value

	else if (typeof targetobject.style.opacity!="undefined") //Standard opacity syntax

		targetobject.style.opacity=value

	setting.curopacity=value

},





fadeup:function(setting){

	if (setting.curopacity<1){

		this.setopacity(setting, setting.curopacity+setting.enablefade[1])

		window["fcsfade"+setting.id]=setTimeout(function(){featuredcontentslider.fadeup(setting)}, 50)

	}

	else{ //when fade is complete

		if (setting.cacheprevpage!=setting.currentpage) //if previous content isn't the same as the current shown div (happens the first time the page loads/ script is run)

			setting.contentdivs[setting.cacheprevpage-1].style.display="none" //collapse last content div shown (it was set to "block")

		setting.onChange(setting.cacheprevpage, setting.currentpage)

	}

},



cleartimer:function(setting, timervar){

	if (typeof timervar!="undefined"){

		clearTimeout(timervar)

		clearInterval(timervar)

		if (setting.cacheprevpage!=setting.currentpage){ //if previous content isn't the same as the current shown div

			setting.contentdivs[setting.cacheprevpage-1].style.display="none"

		}

	}

},



css:function(el, targetclass, action){

	var needle=new RegExp("(^|\\s+)"+targetclass+"($|\\s+)", "ig")

	if (action=="check")

		return needle.test(el.className)

	else if (action=="remove")

		el.className=el.className.replace(needle, "")

	else if (action=="add")

		el.className+=" "+targetclass

},



autorotate:function(setting){

 window["fcsautorun"+setting.id]=setInterval(function(){featuredcontentslider.turnpage(setting, "next")}, setting.autorotate[1])

},



getCookie:function(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 null

},



setCookie:function(name, value){

	document.cookie = name+"="+value



},





init:function(setting){

	var persistedpage=this.getCookie("fcspersist"+setting.id) || 1

	var urlselectedpage=this.urlparamselect(setting.id) //returns null or index from: mypage.htm?featuredcontentsliderid=index

	this.settingcaches[setting.id]=setting //cache "setting" object

	setting.contentdivs=[]

	setting.toclinks=[]

	setting.topzindex=0

	setting.currentpage=urlselectedpage || ((this.enablepersist)? persistedpage : 1)

	setting.prevpage=setting.currentpage

	setting.revealtype="on"+(setting.revealtype || "click")

	setting.curopacity=0

	setting.onChange=setting.onChange || function(){}

	if (setting.contentsource[0]=="inline")

		this.buildpaginate(setting)

	if (setting.contentsource[0]=="ajax")

		this.ajaxconnect(setting)

}



}