/*Textarea-maxlength by frequency decoder (http://www.frequency-decoder.com/)*/
function addEvent( obj, type, fn, tmp ) {
	if( obj.attachEvent ) {
		obj["e"+type+fn] = fn;
		obj[type+fn] = function(){obj["e"+type+fn]( window.event );};
		obj.attachEvent( "on"+type, obj[type+fn] );
	} else {
		obj.addEventListener( type, fn, false );
	}
};

/* TP Slideshow */

var d=document, imgs = new Array(), zInterval = null, current=0, pause=false;

function so_init() {
	if(!$("slideshow")){return;}
	imgs = d.getElementById("slideshow").getElementsByTagName("img");
	for(i=1;i<imgs.length;i++){
		imgs[i].style.display = 'none';
		imgs[i].xOpacity = 0;
	}		
	imgs[0].style.display = "block";
	imgs[0].xOpacity = .99;
	
	// Check to see if second image is completely available before beginning
	it = 0;
	function isComplete(){
		if(imgs[2].complete || imgs[2].complete == undefined || it == 100){
			setTimeout(so_xfade,5000);
			clearTimeout(com);
		} else {
			it += 1;
		}
	};
	com = setInterval(isComplete,10);

	// addEvent(window, 'load', setTimeout(so_xfade,3000), false);
}

function so_xfade() {
	cOpacity = imgs[current].xOpacity;
	nIndex = imgs[current+1]?current+1:0;

	nOpacity = imgs[nIndex].xOpacity;

	cOpacity-=.02; 
	nOpacity+=.02;

	imgs[nIndex].style.display = "block";
	imgs[current].xOpacity = cOpacity;
	imgs[nIndex].xOpacity = nOpacity;

	setOpacity(imgs[current]); 
	setOpacity(imgs[nIndex]);

	if(cOpacity<=0) {
		imgs[current].style.display = "none";
		current = nIndex;
		setTimeout(so_xfade,4500);
	} else {
		setTimeout(so_xfade,50);
	}

	function setOpacity(obj) {
		if(obj.xOpacity>.99) {
			obj.xOpacity = .99;
			return;
		}
		obj.style.opacity = obj.xOpacity;
		obj.style.MozOpacity = obj.xOpacity;
		obj.style.filter = "alpha(opacity=" + (obj.xOpacity*100) + ")";
	}

}




/* Smooth scrolling
   Changes links that link to other parts of this page to scroll
   smoothly to those links rather than jump to them directly, which
   can be a little disorienting.

   sil, http://www.kryogenix.org/

   v1.0 2003-11-11
   v1.1 2005-06-16 wrap it up in an object
*/

var ss = {
  fixAllLinks: function() {
    // Get a list of all links in the page
    var allLinks = document.getElementsByTagName('a');
    // Walk through the list
    for (var i=0;i<allLinks.length;i++) {
      var lnk = allLinks[i];
      if ((lnk.href && lnk.href.indexOf('#') != -1) && 
          ( (lnk.pathname == location.pathname) ||
	    ('/'+lnk.pathname == location.pathname) ) && 
          (lnk.search == location.search)) {
        // If the link is internal to the page (begins in #)
        // then attach the smoothScroll function as an onclick
        // event handler
        ss.addEvent(lnk,'click',ss.smoothScroll);
      }
    }
  },

  smoothScroll: function(e) {
    // This is an event handler; get the clicked on element,
    // in a cross-browser fashion
    if (window.event) {
      target = window.event.srcElement;
    } else if (e) {
      target = e.target;
    } else return;

    // Make sure that the target is an element, not a text node
    // within an element
    if (target.nodeType == 3) {
      target = target.parentNode;
    }

    // Paranoia; check this is an A tag
    if (target.nodeName.toLowerCase() != 'a') return;

    // Find the <a name> tag corresponding to this href
    // First strip off the hash (first character)
    anchor = target.hash.substr(1);
    // Now loop all A tags until we find one with that name
    var allLinks = document.getElementsByTagName('a');
    var allDivs = document.getElementsByTagName('div');
    var all = [allLinks, allDivs];
    var destinationLink = null;
    for (var j=0; j<all.length; j++) {
      for (var i=0;i<all[j].length;i++) {
        var lnk = all[j][i];
        if (lnk.name && (lnk.name == anchor)) {
          destinationLink = lnk;
          break;
        } else if (lnk.id && (lnk.id == anchor)){
	  destinationLink = lnk;
          break;
	}
      }
    }
    /*
    var allLinks = document.getElementsByTagName('a');
    var destinationLink = null;
    for (var i=0;i<allLinks.length;i++) {
      var lnk = allLinks[i];
      if (lnk.name && (lnk.name == anchor)) {
        destinationLink = lnk;
        break;
      }
    }
    */

    // If we didn't find a destination, give up and let the browser do
    // its thing
    if (!destinationLink) return true;

    // Find the destination's position
    var destx = destinationLink.offsetLeft; 
    var desty = destinationLink.offsetTop;
    var thisNode = destinationLink;
    while (thisNode.offsetParent && 
          (thisNode.offsetParent != document.body)) {
      thisNode = thisNode.offsetParent;
      destx += thisNode.offsetLeft;
      desty += thisNode.offsetTop;
    }

    // Stop any current scrolling
    clearInterval(ss.INTERVAL);

    cypos = ss.getCurrentYPos();

    ss_stepsize = parseInt((desty-cypos)/ss.STEPS);
    ss.INTERVAL =
setInterval('ss.scrollWindow('+ss_stepsize+','+desty+',"'+anchor+'")',10);

    // And stop the actual click happening
    if (window.event) {
      window.event.cancelBubble = true;
      window.event.returnValue = false;
    }
    if (e && e.preventDefault && e.stopPropagation) {
      e.preventDefault();
      e.stopPropagation();
    }
  },

  scrollWindow: function(scramount,dest,anchor) {
    wascypos = ss.getCurrentYPos();
    isAbove = (wascypos < dest);
    // window.scrollTo(0,wascypos + scramount);
	window.scrollTo(0, parseInt(wascypos + (dest-wascypos)/30 + 2));
 	iscypos = ss.getCurrentYPos();
    isAboveNow = (iscypos < dest);
    if ((isAbove != isAboveNow) || (wascypos == iscypos)) {
      // if we've just scrolled past the destination, or
      // we haven't moved from the last scroll (i.e., we're at the
      // bottom of the page) then scroll exactly to the link
      window.scrollTo(0,dest);
      // cancel the repeating timer
      clearInterval(ss.INTERVAL);
      // and jump to the link directly so the URL's right
      location.hash = anchor;
    }
  },

  getCurrentYPos: function() {
    if (document.body && document.body.scrollTop)
      return document.body.scrollTop;
    if (document.documentElement && document.documentElement.scrollTop)
      return document.documentElement.scrollTop;
    if (window.pageYOffset)
      return window.pageYOffset;
    return 0;
  },

  addEvent: function(elm, evType, fn, useCapture) {
    // addEvent and removeEvent
    // cross-browser event handling for IE5+,  NS6 and Mozilla
    // By Scott Andrew
    if (elm.addEventListener){
      elm.addEventListener(evType, fn, useCapture);
      return true;
    } else if (elm.attachEvent){
      var r = elm.attachEvent("on"+evType, fn);
      return r;
    } else {
      alert("Handler could not be removed");
    }
  } 
}

ss.STEPS = 5;
//ss.addEvent(window,"load",ss.fixAllLinks);

// Cross browser get window dimensions
function getSize(which) {
  var myWidth = 0, myHeight = 0;
  if( typeof( window.innerWidth ) == 'number' ) {
    //Non-IE
    myWidth = window.innerWidth;
    myHeight = window.innerHeight;
  } else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {
    //IE 6+ in 'standards compliant mode'
    myWidth = document.documentElement.clientWidth;
    myHeight = document.documentElement.clientHeight;
  } else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
    //IE 4 compatible
    myWidth = document.body.clientWidth;
    myHeight = document.body.clientHeight;
  }
  return (which=='height' ? myHeight : myWidth);
};

function adjustHeight(){
	if($('sidebar')){
		var c = $('content').getHeight();
		var b = getSize('height');
		var diff = (c+240) - b;
		if((c+240) < b){
			diff = (diff > -240 && diff < 0 ? diff : 0);
			$('sidebar').style.height = (b-240-diff)+'px';
		} else {
			$('sidebar').style.height = (c+266)+'px';
		}		
	}
};

window.onresize = function(){
	adjustHeight();
};

/* Initiate DOM */
document.observe('dom:loaded', function(){
	createPlayer();	
	so_init();
	ss.fixAllLinks();
});

Event.observe(window, 'load', function(){
	adjustHeight();
});

// function init() {
// 	if (arguments.callee.done) return;
// 	arguments.callee.done = true;
// 	if (_timer) clearInterval(_timer);
// 
// 	// functions to load 
// 
// };
// 
// /* for Mozilla/Opera9 and Safari */
// if (document.addEventListener) {
// 	/* for Safari */
// 	if (/WebKit/i.test(navigator.userAgent)){
// 		var _timer = setInterval(function(){if(/loaded|complete/.test(document.readyState)){ init(); }}, 0);
// 		window.onload(init);
// 	} else {
// 		document.addEventListener("DOMContentLoaded", init, false);
// 	}
// } else {
// 	document.write("<script id=__ie_onload defer src=//:><\/script>");
// 	var script = document.getElementById("__ie_onload");
// 	script.onreadystatechange = function() {
// 		if (this.readyState == "complete") {
// 			this.onreadystatechange = null;
// 			init(); // call the onload handler
// 		}
// 	};
// }