/*
	Developed by Robert Nyman, http://www.robertnyman.com
	Code/licensing: http://code.google.com/p/getelementsbyclassname/
*/	
var getElementsByClassName = function (className, tag, elm){
 if (document.getElementsByClassName) {
   getElementsByClassName = function (className, tag, elm) {
     elm = elm || document;
     var elements = elm.getElementsByClassName(className),
       nodeName = (tag)? new RegExp("\\b" + tag + "\\b", "i") : null,
       returnElements = [],
       current;
     for(var i=0, il=elements.length; i<il; i+=1){
       current = elements[i];
       if(!nodeName || nodeName.test(current.nodeName)) {
         returnElements.push(current);
       }
     }
     return returnElements;
   };
 }
 else if (document.evaluate) {
   getElementsByClassName = function (className, tag, elm) {
     tag = tag || "*";
     elm = elm || document;
     var classes = className.split(" "),
       classesToCheck = "",
       xhtmlNamespace = "http://www.w3.org/1999/xhtml",
       namespaceResolver = (document.documentElement.namespaceURI === xhtmlNamespace)? xhtmlNamespace : null,
       returnElements = [],
       elements,
       node;
     for(var j=0, jl=classes.length; j<jl; j+=1){
       classesToCheck += "[contains(concat(' ', @class, ' '), ' " + classes[j] + " ')]";
     }
     try {
       elements = document.evaluate(".//" + tag + classesToCheck, elm, namespaceResolver, 0, null);
     }
     catch (e) {
       elements = document.evaluate(".//" + tag + classesToCheck, elm, null, 0, null);
     }
     while ((node = elements.iterateNext())) {
       returnElements.push(node);
     }
     return returnElements;
   };
 }
 else {
    getElementsByClassName = function (className, tag, elm) {
     tag = tag || "*";
     elm = elm || document;
     var classes = className.split(" "),
       classesToCheck = [],
       elements = (tag === "*" && elm.all)? elm.all : elm.getElementsByTagName(tag),
       current,
       returnElements = [],
       match;
     for(var k=0, kl=classes.length; k<kl; k+=1){
       classesToCheck.push(new RegExp("(^|\\s)" + classes[k] + "(\\s|$)"));
     }
     for(var l=0, ll=elements.length; l<ll; l+=1){
       current = elements[l];
       match = false;
       for(var m=0, ml=classesToCheck.length; m<ml; m+=1){
         match = classesToCheck[m].test(current.className);
         if (!match) {
           break;
         }
       }
       if (match) {
         returnElements.push(current);
       }
     }
     return returnElements;
    };
 }
 return getElementsByClassName(className, tag, elm);
};

/*
	Developed by Justin Reese, http://buskerweb.com
*/	

function changeLogo(i){
	var logos = ['accenture','alcatel_lucent','amex','apple','att','avaya','aventis','bank_of_america','belo','blockbuster','brinker','compusa','dbj','deloitte','eds','ernst_young','exxon','fidelity','fossil','frito_lay','gte','hp','ibm','integer','kpmg','kraft','marriott','mcdonalds','miller','nokia','nortel','perot','pfizer','pitney_bowes','pizza_hut','pwc','radio_shack','richards_group','sara_lee','southwest','sprint','txu','united_way','vw','yahoo'];
	document.getElementById('logo_wrapper').style.backgroundImage = "url('images/corporate_logos/"+logos[i]+".png')";
	var n = (i+1 < logos.length) ? i+1 : 0;
	setTimeout('changeLogo('+n+')',3000);
}

function checkForm() {
	var required = ['first_name','last_name','email','company','title','phone','date'];
	var allow = true;
	for (var i = 0; i < required.length; i++) {
		var element = document.getElementById(required[i]);
		if (element.value == '') {
			allow = false;
			element.className = 'failure';
			element.onblur = checkValue;
		} else { element.className = ''; }
	}
	return allow;
}

function checkValue() {
  if (this.value != '') this.className = '';
}

function closeBio(target) {
  var bio = (this.tagName != 'A') ? target : document.getElementById(this.id.replace('link_closer_',''));
  document.getElementById('cast_bios').style.zIndex = 0;
	document.getElementById('rollover_title').style.display = '';
	bio.className = 'bio';
  document.getElementById('wrapper').className = '';
  bio = null;
}

function openBio(target) {
  var bio_id = typeof(target) == 'string' ? target : this.href.substr(this.href.indexOf('#')+1);
	document.getElementById('cast_bios').style.zIndex = 3;
	document.getElementById('rollover_title').style.display = 'none';
	document.getElementById(bio_id).className = 'bio open';
  document.getElementById('wrapper').className = 'showing_' + bio_id;
  bio_id = null;
}

function hoverOnBio() {
  document.getElementById('wrapper').className = 'showing_' + this.href.substr(this.href.indexOf('#')+1);
	document.getElementById('rollover_title').innerHTML = this.innerHTML + '<span class="instructions">(Click to read full bio)</span>';
}

function hoverOffBio() {
  if (document.getElementById(this.href.substr(this.href.indexOf('#')+1)).className !== 'bio open') document.getElementById('wrapper').className = '';
	document.getElementById('rollover_title').innerHTML = 'Rollover a cast member\'s head';
}

function closeAllBios(e) {
  var evt = e || window.event;
  if (evt.keyCode == 88) {
  	var bios = getElementsByClassName('bio');
  	var bios_length = bios.length;
  	for (var i = 0; i < bios_length; i++) {
      if (bios[i].className == 'bio open') {
        closeBio(bios[i]);
      }
    }
    bios = bios_length = null;
  };
}

window.onload = function(){
  switch (document.body.id) {
    case 'page_cast':
      // Collect all valid bio IDs for use later
      var valid_bio_ids = [];
      var bios = getElementsByClassName('bio');
    	var bios_length = bios.length;
    	for (var i = 0; i < bios_length; i++) { valid_bio_ids.push(bios[i].id); }
      // Iterate through all the opener links, applying proper functions
      var openers = getElementsByClassName('opener');
    	var openers_length = openers.length;
    	for (var i = 0; i < openers_length; i++) {
        openers[i].onclick = openBio;
        if (openers[i].className !== 'opener unpictured') {
          openers[i].onmouseover = hoverOnBio;
          openers[i].onmouseout = hoverOffBio;
        }
    	}
      // Iterate through all the closer links, applying closing-function to them
    	var closers = getElementsByClassName('closer');
    	var closers_length = closers.length;
    	for (var i = 0; i < closers_length; i++) { closers[i].onclick = closeBio; }
      // Bind closing function to 'x' key for quick closing
    	document['onkeyup'] = closeAllBios;
      // Open a cast member's bio if the URL contains an explicit reference to them
      // (for link-sharing, bookmarking, etc.)
      if (window.location.href.indexOf('#') > 0) {
        var bio_id = window.location.href.substr(window.location.href.indexOf('#')+1);
        for (var i = 0; i < bios_length; i++) {
          // Make sure this is a valid bio ID to prevent screwups
          if (bio_id == valid_bio_ids[i]) {
            openBio(bio_id);
            break;
          }
        }
      }
      // Unbind stuff for memory usage
    	bios = bios_length = openers = openers_length = closers = closers_length = bio_id = null;
      break;
    case 'page_corporate_entertainment':
      changeLogo(0);
      break;
  }
};