// XMLHTTP JS class is is developed by Alex Serebryakov (#0.9.1)
// For more information, consult www.ajaxextended.com

// What's new in 0.9.1:
// - fixed the _createQuery function (used to force multipart requests)
// - fixed the getResponseHeader function (incorrect search)
// - fixed the _parseXML function (bug in the ActiveX parsing section)
// - fixed the _destroyScripts function (DOM errors reported)

var XMLHTTP = function() {

  // The following two options are configurable
  // you don't need to change the rest. Plug & play!
  var _maximumRequestLength = 1500
  var _apiURL = 'http://ucommxsrv1.unl.edu/xmlhttp/'

  this.status = null
  this.statusText = null
  this.responseText = null
  this.responseXML = null
  this.synchronous = false
  this.readyState = 0
  
  this.onreadystatechange =  function() { }
  this.onerror = function() { }
  this.onload = function() { }
  
  this.abort = function() {
    _stop = true
    _destroyScripts()
  }
  
  this.getAllResponseHeaders = function() {
    // Returns all response headers as a string
    var result = ''
    for (property in _responseHeaders)
      result += property + ': ' + _responseHeaders[property] + '\r\n'
    return result
  }
  
  this.getResponseHeader = function(name) {
    // Returns a response header value
    // Note, that the search is case-insensitive
    for(property in _responseHeaders) {
      if(property.toLowerCase() == name.toLowerCase())
        return _responseHeaders[property]
    }
    return null
  }
  
  this.overrideMimeType = function(type) {
    _overrideMime = type
  }
  
  this.open = function(method, url, sync, userName, password) {
    // Setting the internal values
    if (!_checkParameters(method, url)) return
    _method = (method) ? method : ''
    _url = (url) ? url : ''
    _userName = (userName) ? userName : ''
    _password = (password) ? password : ''
    _setReadyState(1)
  }
  
  this.openRequest = function(method, url, sync, userName, password) {
    // This method is inserted for compatibility purposes only
    return this.open(method, url, sync, userName, password)
  }
  
  this.send = function(data) {
    if (_stop) return
    var src = _createQuery(data)
    _createScript(src)
//    _setReadyState(2)
  }
  
  this.setRequestHeader = function(name, value) {
    // Set the request header. If the defined header
    // already exists (search is case-insensitive), rewrite it
    if (_stop) return
    for(property in _requestHeaders) {
      if(property.toLowerCase() == name.toLowerCase()) {
        _requestHeaders[property] = value; return
      }
    }
    _requestHeaders[name] = value
  }
  
  var _method = ''
  var _url = ''
  var _userName = ''
  var _password = ''
  var _requestHeaders = {
    "HTTP-Referer": escape(document.location),
    "Content-Type": "application/x-www-form-urlencoded"
  }
  var _responseHeaders = { }
  var _overrideMime = ""
  var self = this
  var _id = ''
  var _scripts = []
  var _stop = false
  
  var _throwError = function(description) {
    // Stop script execution and run
    // the user-defined error handler
    self.onerror(description)
    self.abort()
    return false
  }
  
  var _createQuery = function(data) {
    if(!data) data = ''
    var headers = ''
    for (property in _requestHeaders)
      headers += property + '=' + _requestHeaders[property] + '&'
    var originalsrc = _method
    + '$' + _id
    + '$' + _userName
    + "$" + _password
    + "$" + headers
    + '$' + _escape(data)
    + '$' + _url
    var src = originalsrc
    var max =  _maximumRequestLength, request = []
    var total = Math.floor(src.length / max), current = 0
    while(src.length > 0) {
      var query = _apiURL + '?'
      + 'multipart' 
      + '$' + _id
      + '$' + current++
      + '$' + total
      + '$' + src.substr(0, max)
      request.push(query)
      src = src.substr(max)
    }
    if(request.length == 1)
      src = _apiURL + '?' + originalsrc
    else
      src = request
    return src
  }
  
  var _checkParameters = function(method, url) {
    // Check the method value (GET, POST, HEAD)
    // and the prefix of the url (http://)
    if(!method)
      return _throwError('Please, specify the query method (GET, POST or HEAD)')
    if(!url)
      return _throwError('Please, specify the URL')
    if(method.toLowerCase() != 'get' &&
      method.toLowerCase() != 'post' &&
      method.toLowerCase() != 'head')
      return _throwError('Please, specify either a GET, POST or a HEAD method')
    if(url.toLowerCase().substr(0,7) != 'http://')
      return _throwError('Only HTTP protocol is supported (http://)')
    return true
  }

  var _createScript = function(src) {
    if ('object' == typeof src) {
      for(var i = 0; i < src.length; i++)
        _createScript(src[i]);
      return true;
    }
    // Create the SCRIPT tag
    var script = document.createElement('script');
    script.src = src;
    script.type = 'text/javascript';
    if (navigator.userAgent.indexOf('Safari')){
      script.charset = 'utf-8'; // Safari bug
    }
    script = document.getElementsByTagName('head')[0].appendChild(script);
    _scripts.push(script);
    return script;
  }
  
  var _escape = function(string) {
    // Native escape() function doesn't quote the plus sign +
    string = escape(string)
    string = string.replace('+', '%2B')
    return string
  }
  
  var _destroyScripts = function() {
    // Removes the SCRIPT nodes used by the class
    for(var i = 0; i < _scripts.length; i++)
      if(_scripts[i].parentNode)
        _scripts[i].parentNode.removeChild(_scripts[i])
  }
  
  var _registerCallback = function() {
    // Register a callback variable (in global scope)
    // that points to current instance of the class
    _id = 'v' + Math.random().toString().substr(2)
    window[_id] = self
  }
  
  var _setReadyState = function(number) {
    // Set the ready state property of the class
    self.readyState = number
    self.onreadystatechange()
    if(number == 4) self.onload()
  }
    
  var _parseXML = function() {
      var type = self.getResponseHeader('Content-type') + _overrideMime
      if(!(type.indexOf('html') > -1 || type.indexOf('xml') > -1)) return
      if(document.implementation &&
	      document.implementation.createDocument &&
	      navigator.userAgent.indexOf('Opera') == -1) {
        var parser = new DOMParser()
        var xml = parser.parseFromString(self.responseText, "text/xml")
        self.responseXML = xml
      } else if (window.ActiveXObject) {
        var xml = new ActiveXObject('MSXML2.DOMDocument.3.0')
        if (xml.loadXML(self.responseText))
        	self.responseXML = xml
      } else {
        var xml = document.body.appendChild(document.createElement('div'))
        xml.style.display = 'none'
        xml.innerHTML = self.responseText
        _cleanWhitespace(xml, true)
        self.responseXML = xml.childNodes[0]
        document.body.removeChild(xml)
     }
  }
  
  var _cleanWhitespace = function(element, deep) {
    var i = element.childNodes.length; if(i == 0) return
    do {
      var node = element.childNodes[--i]
      if (node.nodeType == 3 && !_cleanEmptySymbols(node.nodeValue))
        element.removeChild(node)
      if (node.nodeType == 1 && deep)
        _cleanWhitespace(node, true)
    } while(i > 0)
  }

  var _cleanEmptySymbols = function(string) {
    string = string.replace('\r', '')
    string = string.replace('\n', '')
    string = string.replace(' ', '')
  	return (string.length == 0) ? false : true 
  }
 
  this._parse = function(object) {
    // Parse the received data and set all
    // the appropriate properties of the class
    if(_stop) return true;
    if(object.multipart) return true;
    if(!object.success)
      return _throwError(object.description);
    _responseHeaders = object.responseHeaders;
    this.status = object.status;
    this.statusText = object.statusText;
    this.responseText = object.responseText;
    _parseXML();
    _destroyScripts();
    _setReadyState(4);
    return true;
  }
    
   _registerCallback()

}
function rotateImg(imgArray_str,elementId_str,secs_int,thisNum_int){
	function showIt() {
		try {
			if(obj.src!=null && eval(imgArray_str+"["+thisNum_int+"][0]")!=null)
				obj.src=eval(imgArray_str+"["+thisNum_int+"][0]");
			if(obj.alt!=null && eval(imgArray_str+"["+thisNum_int+"][1]")!=null)
				obj.alt=eval(imgArray_str+"["+thisNum_int+"][1]");
			if(obj.parentNode.href!=null && eval(imgArray_str+"["+thisNum_int+"][2]")!=null) {
				obj.parentNode.href=eval(imgArray_str+"["+thisNum_int+"][2]");
				if(eval(imgArray_str+"["+thisNum_int+"][3]")!=null) {
					var clickEvent = eval(imgArray_str+"["+thisNum_int+"][3]");
					obj.parentNode.onclick=function() {eval(clickEvent);}
				}
				else
					obj.parentNode.onclick=null;
			}
			else
				obj.parentNode.href='#';
		} catch(e) {}
	}
	if(thisNum_int==null)
		thisNum_int=Math.floor(Math.random()*eval(imgArray_str+".length"));
	if(thisNum_int >= eval(imgArray_str+".length"))
		thisNum_int = 0;
	if(eval(imgArray_str+"["+thisNum_int+"]")!=null){
		// Try and set img
		var obj = MM_findObj(elementId_str);
		showIt();
	}
	thisNum_int++;
	if(secs_int>0) {
		return setTimeout("rotateImg('"+imgArray_str+"','"+elementId_str+"',"+secs_int+","+thisNum_int+")",secs_int*1000);
	} else {
		return true;
	}
}
function executeQuery( form, typeOperation, doSubmit)
{

	var ind = document.getElementById('whichDatabase').selectedIndex;
	var redirURL = document.getElementById('whichDatabase').options[ind].value+escape(form.q.value);
	if (form.q.value.length < 1)
	{
		alert ( "There is an empty query. Please enter a valid one" );
		form.q.focus();
		return false;
	}
	else
	{
		if(redirURL.indexOf("http://www.google.com/search") != -1) {
			window.open(redirURL);
		}
		else if(redirURL.indexOf("http://ucommxsrv1.unl.edu/peoplefinder/") != -1) {
			window.open(redirURL,'peoplefindpop','scrollbars=1,width=325,height=500,innerwidth=325,innerheight=500');
		}
		else {
			location.href = redirURL;
		}
		return false;
	}
	return false;
}
function MM_findObj(n, d) { //v3.0
  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); return x;
}
function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}
function makeRemoteQTVR() {
	remote = window.open("","remotewinQTVR", "toolbar=no,menubar=no,location=no,scrollbars=no,resizable=no,width=794,height=594");
	remote.location.href = "http://www.unl.edu/unlpub/tour/frame3/index_fullpage.shtml";
	   if (remote.opener == null) remote.opener = window; 
	remote.opener.name = "touropener";
}


var subnavshown = false;

function showAllNavlinks(){ 
	/* propagate down the list to get the to the last LI */
	var scan = document.getElementById("navlinks");
	var scanlist = scan.getElementsByTagName("li");
	for(var x=0; x<scanlist.length; x++){
		var scannestlist = scanlist[x].getElementsByTagName("ul");
	
		for(var f=0; f<scannestlist.length; f++){
			var finalist = scannestlist[f].getElementsByTagName("li");								
			if (finalist.length>5) {
				for(var l=5; l<finalist.length-1; l++){
					/*display the rest of the list*/
					if (subnavshown == false) {
						finalist[l].style.display = 'inline';
					} else {
						finalist[l].style.display = 'none';
					}
				}
				finalist[finalist.length-1].style.display = (subnavshown)?'inline':'none';
			}
		}
	}
	subnavshown = !subnavshown;
	return false;						
}
function showMyNavlinks(){
	var li = this.parentNode
	var ul = li.parentNode;
	var scan = ul.getElementsByTagName("li");
	for(var l=5; l<scan.length; l++){
		/*display the rest of the list*/
		var nextSibStatus = (scan[l].style.display == 'none') ? 'inline' : 'none';
		scan[l].style.display = nextSibStatus;
	}
	return false;
}

/* This is the navigation hide list JS @alvin.W */
var dc={


	init:function(e){
	try {
		/* variable initialization */
		var ndiv = document.getElementById('navlinks');
		var ul1 = ndiv.getElementsByTagName('ul');
		var te = ndiv.getElementsByTagName('div');
		if(te.length==0){//exclude navlink hide action from splash page navigation
			
			/* get the number of LI within an UL, and within that ul and so on..... */
			for( var k=0; k<ul1.length; k++){
			var li1 = ul1[k].getElementsByTagName("li");
				
				for(var z=0; z<li1.length; z++){
					var ul2 = li1[z].getElementsByTagName("ul");
					
					for(var t=0; t<ul2.length; t++){
						var li2 = ul2[t].getElementsByTagName("li");		
						
						for(var v=0; v<li2.length-1; v++){
							for(var q=0; q<li2[v].childNodes.length; q++) {
								if (li2[v].childNodes[q].innerHTML) {
									while (li2[v].childNodes[q].innerHTML.substring(li2[v].childNodes[q].innerHTML.length-1, li2[v].childNodes[q].innerHTML.length) == ' ') {
										li2[v].childNodes[q].innerHTML = li2[v].childNodes[q].innerHTML.substring(0,li2[v].childNodes[q].innerHTML.length-1);
									}
								} else {
									try {
										li2[v].childNodes[q].removeNode();
									} catch(e) {}
								}
							}
							var comma = document.createTextNode(', ');
							li2[v].appendChild(comma);
						}
						/* hide LI after the first five */
						if (li2.length > 5){
							
							for( var i=5; i<li2.length; i++){
								li2[i].style.display = 'none';
							}
							
							/* automatically insert ... characters after the fifth list to indicate more links */
							var para = document.createElement("li");
							para.style.display = 'inline';
							var text = document.createTextNode("more ...");
							var elip_link = document.createElement('a');
							elip_link.href = '#';
							elip_link.onclick = showMyNavlinks;
							elip_link.appendChild(text);
							para.appendChild(elip_link);
							ul2[t].appendChild(para);
							
							/*
							// show hide button
							var show1 = document.getElementById("showlink");
							if (show1) {
								show1.style.display = 'inline';
							} else {
								var d = document.createElement('div');
								d.id = 'showlink';
								show1 = document.createElement('a');
								show1.href = '#';
								show1.onclick = showAllNavlinks;
								d.appendChild(show1);
								ndiv.appendChild(d);
							}*/
						}
					}
				}
			}
		}
		} catch(e) {}
	},
	
	/* substitute window.onload */
	addEvent: function(elm, evType, fn, useCapture){
		if (elm.addEventListener) 
		{
			elm.addEventListener(evType, fn, useCapture);
			return true;
		} else if (elm.attachEvent) {
			var r = elm.attachEvent('on' + evType, fn);
			return r;
		} else {
			elm['on' + evType] = fn;
			return true;
		}
	}
		
}
dc.addEvent(window, 'load', dc.init, false);

/* GetElementsByClass by Dustin Diaz */
function getElementsByClass(node,searchClass,tag) {
var classElements = new Array();
var els = node.getElementsByTagName(tag); // use "*" for all elements
var elsLen = els.length;
var pattern = new RegExp("\\b"+searchClass+"\\b");
for (i = 0, j = 0; i < elsLen; i++) {
 if ( pattern.test(els[i].className) ) {
 classElements[j] = els[i];
 j++;
 }
}
return classElements;
}


// Controls entire layout.
/* Viewport resize script (simon collison)*/
var wraphandler = {

  init: function() {

    if (!document.getElementById) return;

    // set up the appropriate wrapper

    wraphandler.setWrapper();

    // and make sure it gets set up again if you resize the window

    wraphandler.addEvent(window,"resize",wraphandler.setWrapper);

  },



  setWrapper: function() {



    var theWidth = 0;

    if (window.innerWidth) {

	theWidth = window.innerWidth

    } else if (document.documentElement &&

                document.documentElement.clientWidth) {

	theWidth = document.documentElement.clientWidth

    } else if (document.body) {

	theWidth = document.body.clientWidth

    }

    if (theWidth != 0) {

      if (theWidth > 1270) {

        document.getElementById('main_right').className = 'altwrapper';

      } else {
		
			version=0
			if (navigator.appVersion.indexOf("MSIE")!=-1){
			temp=navigator.appVersion.split("MSIE")
			version=parseFloat(temp[1])
			}
			if (version>=5.5) {
				if(theWidth < 1000){
				document.getElementById('header').className = 'ieminwidth';
				document.getElementById('container').className = 'ieminwidth';
				}
			}
			document.getElementById('main_right').className = 'mainwrapper';
      }

    }

  },



  addEvent: function( obj, type, fn ) {

    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 );

    }

  }

}



wraphandler.addEvent(window,"load",wraphandler.init);

/*	sIFR 2.0.2
	Copyright 2004 - 2006 Mike Davidson, Shaun Inman, Tomas Jogin and Mark Wubben

	This software is licensed under the CC-GNU LGPL <http://creativecommons.org/licenses/LGPL/2.1/>
*/

var hasFlash=function(){var a=6;if(navigator.appVersion.indexOf("MSIE")!=-1&&navigator.appVersion.indexOf("Windows")>-1){document.write('<script language="VBScript"\> \non error resume next \nhasFlash = (IsObject(CreateObject("ShockwaveFlash.ShockwaveFlash." & '+a+'))) \n</script\> \n');if(window.hasFlash!=null)return window.hasFlash}if(navigator.mimeTypes&&navigator.mimeTypes["application/x-shockwave-flash"]&&navigator.mimeTypes["application/x-shockwave-flash"].enabledPlugin){var b=(navigator.plugins["Shockwave Flash 2.0"]||navigator.plugins["Shockwave Flash"]).description;return parseInt(b.charAt(b.indexOf(".")-1))>=a}return false}();String.prototype.normalize=function(){return this.replace(/\s+/g," ")};if(Array.prototype.push==null){Array.prototype.push=function(){var i=0,a=this.length,b=arguments.length;while(i<b){this[a++]=arguments[i++]}return this.length}}if(!Function.prototype.apply){Function.prototype.apply=function(a,b){var c=[];var d,e;if(!a)a=window;if(!b)b=[];for(var i=0;i<b.length;i++){c[i]="b["+i+"]"}e="a.__applyTemp__("+c.join(",")+");";a.__applyTemp__=this;d=eval(e);a.__applyTemp__=null;return d}}function named(a){return new named.Arguments(a)}named.Arguments=function(a){this.oArgs=a};named.Arguments.prototype.constructor=named.Arguments;named.extract=function(a,b){var c,d;var i=a.length;while(i--){d=a[i];if(d!=null&&d.constructor!=null&&d.constructor==named.Arguments){c=a[i].oArgs;break}}if(c==null)return;for(e in c)if(b[e]!=null)b[e](c[e]);return};var parseSelector=function(){var a=/^([^#.>`]*)(#|\.|\>|\`)(.+)$/;function r(s,t){var u=s.split(/\s*\,\s*/);var v=[];for(var i=0;i<u.length;i++)v=v.concat(b(u[i],t));return v}function b(c,d,e){c=c.normalize().replace(" ","`");var f=c.match(a);var g,h,i,j,k,n;var l=[];if(f==null)f=[c,c];if(f[1]=="")f[1]="*";if(e==null)e="`";if(d==null)d=document;switch(f[2]){case "#":k=f[3].match(a);if(k==null)k=[null,f[3]];g=document.getElementById(k[1]);if(g==null||(f[1]!="*"&&!o(g,f[1])))return l;if(k.length==2){l.push(g);return l}return b(k[3],g,k[2]);case ".":if(e!=">")h=m(d,f[1]);else h=d.childNodes;for(i=0,n=h.length;i<n;i++){g=h[i];if(g.nodeType!=1)continue;k=f[3].match(a);if(k!=null){if(g.className==null||g.className.match("(\\s|^)"+k[1]+"(\\s|$)")==null)continue;j=b(k[3],g,k[2]);l=l.concat(j)}else if(g.className!=null&&g.className.match("(\\s|^)"+f[3]+"(\\s|$)")!=null)l.push(g)}return l;case ">":if(e!=">")h=m(d,f[1]);else h=d.childNodes;for(i=0,n=h.length;i<n;i++){g=h[i];if(g.nodeType!=1)continue;if(!o(g,f[1]))continue;j=b(f[3],g,">");l=l.concat(j)}return l;case "`":h=m(d,f[1]);for(i=0,n=h.length;i<n;i++){g=h[i];j=b(f[3],g,"`");l=l.concat(j)}return l;default:if(e!=">")h=m(d,f[1]);else h=d.childNodes;for(i=0,n=h.length;i<n;i++){g=h[i];if(g.nodeType!=1)continue;if(!o(g,f[1]))continue;l.push(g)}return l}}function m(d,o){if(o=="*"&&d.all!=null)return d.all;return d.getElementsByTagName(o)}function o(p,q){return q=="*"?true:p.nodeName.toLowerCase().replace("html:", "")==q.toLowerCase()}return r}();var sIFR=function(){var a="http://www.w3.org/1999/xhtml";var b=false;var c=false;var d;var ah=[];var al=document;var ak=al.documentElement;var am=window;var au=al.addEventListener;var av=am.addEventListener;var f=function(){var g=navigator.userAgent.toLowerCase();var f={a:g.indexOf("applewebkit")>-1,b:g.indexOf("safari")>-1,c:navigator.product!=null&&navigator.product.toLowerCase().indexOf("konqueror")>-1,d:g.indexOf("opera")>-1,e:al.contentType!=null&&al.contentType.indexOf("xml")>-1,f:true,g:true,h:null,i:null,j:null,k:null};f.l=f.a||f.c;f.m=!f.a&&navigator.product!=null&&navigator.product.toLowerCase()=="gecko";if(f.m&&g.match(/.*gecko\/(\d{8}).*/))f.j=new Number(g.match(/.*gecko\/(\d{8}).*/)[1]);f.n=g.indexOf("msie")>-1&&!f.d&&!f.l&&!f.m;f.o=f.n&&g.match(/.*mac.*/)!=null;if(f.d&&g.match(/.*opera(\s|\/)(\d+\.\d+)/))f.i=new Number(g.match(/.*opera(\s|\/)(\d+\.\d+)/)[2]);if(f.n||(f.d&&f.i<7.6))f.g=false;if(f.a&&g.match(/.*applewebkit\/(\d+).*/))f.k=new 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	sIFR.setup();
};
// ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
// 
// Coded by Travis Beckham
// http://www.squidfingers.com | http://www.podlob.com
// If want to use this code, feel free to do so, but please leave this message intact.
//
// ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
// --- version date: 01/24/03 ---------------------------------------------------------

// ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
// Cross-Browser Functions

var dom = document.getElementById;
var iex = document.all;
var ns4 = document.layers;

function addEvent(event,method){
	this[event] = method;
	if(ns4) this.captureEvents(Event[event.substr(2,event.length).toUpperCase()]);
}
function removeEvent(event){
	this[event] = null;
	if(ns4) this.releaseEvents(Event[event.substr(2,event.length).toUpperCase()]);
}
function getElement(name,nest){
	nest = nest ? "document."+nest+"." : "";
	var el = dom ? document.getElementById(name) : iex ? document.all[name] : ns4 ? eval(nest+"document."+name) : false;
	el.css = ns4 ? el : el.style;
	el.getTop = function(){return parseInt(el.css.top) || 0};
	el.setTop = function(y){el.css.top = ns4 ? y: y+"px"};
	el.getHeight = function(){return ns4 ? el.document.height : el.offsetHeight};
	el.getClipHeight = function(){return ns4 ? el.clip.height : el.offsetHeight};
	el.hideVis = function(){el.css.display="none"};
	el.unhideVis = function(){el.css.display="block"};
	el.addEvent = addEvent;
	el.removeEvent = removeEvent;
	return el;
}
function getYMouse(e){
	return iex ? event.clientY : e.pageY;
}

document.addEvent = addEvent;
document.removeEvent = removeEvent;

// ||||||||||||||||||||||||||||||||||||||||||||||||||
// Scroller Class

ScrollObj = function(speed, dragHeight, trackHeight, trackObj, upObj, downObj, dragObj, contentMaskObj, contentObj){
	this.speed = speed;
	this.dragHeight = dragHeight;
	this.trackHeight = trackHeight;
	this.trackObj = getElement(trackObj);
	this.upObj = getElement(upObj);
	this.downObj = getElement(downObj);
	this.dragObj = getElement(dragObj);
	this.contentMaskObj = getElement(contentMaskObj);
	this.contentObj = getElement(contentObj,contentMaskObj);
	this.obj = contentObj+"Object";
	eval(this.obj+"=this");
	
	this.trackTop = this.upObj.getTop() + this.upObj.getHeight();
	this.trackLength = this.trackHeight-this.dragHeight;
	this.trackBottom = this.trackTop+this.trackLength;
	this.contentMaskHeight = this.contentMaskObj.getClipHeight();
	this.contentHeight = this.contentObj.getHeight();
	this.contentLength = this.contentHeight-this.contentMaskHeight;
	this.scrollLength = this.trackLength/this.contentLength;
	this.scrollTimer = null;
	
	if(this.contentHeight <= this.contentMaskHeight){

		this.dragObj.hideVis();
		this.trackObj.hideVis();
		this.upObj.hideVis();
		this.downObj.hideVis();

	}else{
		var self = this;
		
		this.dragObj.unhideVis();
		this.trackObj.unhideVis();
		this.upObj.unhideVis();
		this.downObj.unhideVis();
		
		this.dragObj.setTop(this.trackObj.getTop()+this.upObj.getHeight());
		
		this.trackObj.addEvent("onmousedown", function(e){self.scrollJump(e);return false});
		this.upObj.addEvent("onmousedown", function(){self.scroll(self.speed);return false});
		this.upObj.addEvent("onmouseup", function(){self.stopScroll()});
		this.upObj.addEvent("onmouseout", function(){self.stopScroll()});
		this.downObj.addEvent("onmousedown", function(){self.scroll(-self.speed);return false});
		this.downObj.addEvent("onmouseup", function(){self.stopScroll()});
		this.downObj.addEvent("onmouseout", function(){self.stopScroll()});
		this.dragObj.addEvent("onmousedown", function(e){self.startDrag(e);return false});
		if(iex) this.dragObj.addEvent("ondragstart", function(){return false});
	}
}
ScrollObj.prototype.startDrag = function(e){
	this.dragStartMouse = getYMouse(e);
	this.dragStartOffset = this.dragObj.getTop();
	var self = this;
	document.addEvent("onmousemove", function(e){self.drag(e)});
	document.addEvent("onmouseup", function(){self.stopDrag()});
}
ScrollObj.prototype.stopDrag = function(){
	document.removeEvent("onmousemove");
	document.removeEvent("onmouseup");
}
ScrollObj.prototype.drag = function(e){
	var currentMouse = getYMouse(e);
	var mouseDifference = currentMouse-this.dragStartMouse;
	var dragDistance = this.dragStartOffset+mouseDifference;
	var dragMovement = (dragDistance<this.trackTop) ? this.trackTop : (dragDistance>this.trackBottom) ? this.trackBottom : dragDistance;
	this.dragObj.setTop(dragMovement);
	var contentMovement = -(dragMovement-this.trackTop)*(1/this.scrollLength);
	this.contentObj.setTop(contentMovement);
}
ScrollObj.prototype.scroll = function(speed){
	var contentMovement = this.contentObj.getTop()+speed;
	var dragMovement = this.trackTop-Math.round(this.contentObj.getTop()*(this.trackLength/this.contentLength));
	if(contentMovement > 0){
		contentMovement = 0;
	}else if(contentMovement < -this.contentLength){
		contentMovement = -this.contentLength;
	}
	if(dragMovement < this.trackTop){
		dragMovement = this.trackTop;
	}else if(dragMovement > this.trackBottom){
		dragMovement = this.trackBottom;
	}
	this.contentObj.setTop(contentMovement);
	this.dragObj.setTop(dragMovement);
	this.scrollTimer = window.setTimeout(this.obj+".scroll("+speed+")",25);
}
ScrollObj.prototype.stopScroll = function(){
	if(this.scrollTimer){
		window.clearTimeout(this.scrollTimer);
		this.scrollTimer = null;
	}
}
ScrollObj.prototype.scrollJump = function(e){
	var currentMouse = getYMouse(e);
	var dragDistance = currentMouse-(this.dragHeight/2);
	var dragMovement = (dragDistance<this.trackTop) ? this.trackTop : (dragDistance>this.trackBottom) ? this.trackBottom : dragDistance;
	this.dragObj.setTop(dragMovement);
	var contentMovement = -(dragMovement-this.trackTop)*(1/this.scrollLength);
	this.contentObj.setTop(contentMovement);
}

ScrollObj.prototype.reset = function(){
// recalculate everything
	this.trackTop = this.upObj.getTop() + this.upObj.getHeight();
	this.trackLength = this.trackHeight-this.dragHeight;
	this.trackBottom = this.trackTop+this.trackLength;
	this.contentMaskHeight = this.contentMaskObj.getClipHeight();
	this.contentHeight = this.contentObj.getHeight();
	this.contentLength = this.contentHeight-this.contentMaskHeight;
	this.scrollLength = this.trackLength/this.contentLength;
	this.scrollTimer = null;
// movethings to the correct new locations
	this.dragObj.setTop(this.trackObj.getTop()+this.upObj.getHeight());
	this.contentObj.setTop(this.contentMaskObj.getTop());

}

// ||||||||||||||||||||||||||||||||||||||||||||||||||
// Misc Functions

function fixNetscape4(){
	if(ns4origWidth != window.innerWidth || ns4origHeight != window.innerHeight){
		window.location.reload();
	}	
}
if(document.layers){
	ns4origWidth = window.innerWidth;
	ns4origHeight = window.innerHeight;
	window.onresize = fixNetscape4;
}

// ||||||||||||||||||||||||||||||||||||||||||||||||||
/* webcam tab switcher */
function camtab(camuri){
var tcischecked=false

selectedtablink=camuri.href
tcischecked=(document.tabcontrol && document.tabcontrol.tabcheck.checked)? true : false
if (document.getElementById && !tcischecked){
var tabobj=document.getElementById("tablist")
var tabobjlinks=tabobj.getElementsByTagName("li")
for (i=0; i<tabobjlinks.length; i++)
tabobjlinks[i].className="off"
camuri.className="current"
return false
}
else
return true
}

/* shelf tab switcher */
function shelfbutton(){
var tcischecked=false
var shelftab = document.getElementById('shelf_button');
tcischecked=(getElementsByClass(document,'current','*'))? true : false;
if (document.getElementById && !tcischecked){
shelftab.className="off"
return true
}
else
shelftab.className="current";
return false
}

/* Keyboard shortcut to drop shelf */
document.onkeydown = checkKeycode
function checkKeycode(e) {
var keycode;
if (window.event) keycode = window.event.keyCode;
else if (e) keycode = e.which;
	if(keycode ==192){
	tabExpand();
	}
}

var calScrollBar;
var weatherScrollBar;
var pfScrollBar;

var firstTimeLoad = 1;

var wait = false;
var unlwebcam = 'http://www.unl.edu/unlpub/cam/cam1.jpg';
var pfreq = new XMLHTTP();
var calreq = new XMLHTTP();
var weatherreq = new XMLHTTP();
var pfresultsdiv = 'pfresults';
var pfserviceurl = 'http://ucommxsrv1.unl.edu/peoplefinder/service.php?q=';
var pfreq_q;
if (!pfreq)
	alert("Error initializing XMLHttpRequest!");
function tabExpand() {
	try {
		var tab = document.getElementById('sitetools');
		if (tab.style.display=='none') {
			pfresultsdiv = 'pfresults';
			pfserviceurl = 'http://ucommxsrv1.unl.edu/peoplefinder/service.php?q=';
			displayCalendar();
			displayUNLWeather();
			updateWebcam(unlwebcam);
			shelfbutton();
			
		if(firstTimeLoad){
			firstTimeLoad = 0;
			document.getElementById('upArrowPF').style.display = 'none';
			document.getElementById('downArrowPF').style.display = 'none';
			document.getElementById('dragButtonPF').style.display = 'none';
			document.getElementById('trackBarPF').style.display = 'none';
	
		
			document.getElementById('upArrowCal').style.display = 'none';
			document.getElementById('downArrowCal').style.display = 'none';
			document.getElementById('dragButtonCal').style.display = 'none';
			document.getElementById('trackBarCal').style.display = 'none';
	
	
			document.getElementById('upArrowWeather').style.display = 'none';
			document.getElementById('downArrowWeather').style.display = 'none';
			document.getElementById('dragButtonWeather').style.display = 'none';
			document.getElementById('trackBarWeather').style.display = 'none';
		}
	
							
			tab.style.display='block';
			
		
			
		} else {
			tab.style.display='none';
			var shelftab = document.getElementById('shelf_button');
			shelftab.className="off"
			
		}
		if (!sIFR.UA.bIsIE) {
			var sifr1 = document.getElementById('titlegraphic').getElementsByTagName('h1');
			var sifr2 = document.getElementById('titlegraphic').getElementsByTagName('h2');
			if (tab.style.display=='block') {
				sifr1[0].style.display='none';
				sifr2[0].style.display='none';
			} else {
				sifr1[0].style.display='block';
				sifr2[0].style.display='block';
			}
		}
		return false;
	} catch(e) {
		return true;
	}
}
function pf_getUID(uid) {
	var url = "http://ucommxsrv1.unl.edu/peoplefinder/service.php?uid="+uid+"&format=hcard";
	if (wait==true) {
		pfreq.abort();
		pfreq = new XMLHTTP();
	}
	pfreq.open("GET", url, true);
	pfreq.onreadystatechange = updatePeopleFinderResults;
	pfreq.send(null);
	wait=true;
	return false;
}

function updateWebcam(camuri) {
	document.getElementById('webcamuri').src = camuri;
	unlwebcam = camuri;
}
function queuePFChooser(q,resultsdiv) {
	pfserviceurl = 'http://ucommxsrv1.unl.edu/peoplefinder/service.php?chooser=true&q=';
	queuePFRequest(q,resultsdiv);
}
function queuePFRequest(q,resultsdiv) {
	pfresultsdiv = resultsdiv;
	clearTimeout(pfreq_q);
	if (q.length > 3) {
		document.getElementById(pfresultsdiv).innerHTML = '';
		document.getElementById("pfprogress").src = '/ucomm/templatedependents/templatecss/images/loadingContent.gif';
		pfreq_q = setTimeout('getPeopleFinderResults("'+escape(q)+'")',400);
		displayUNLPFScrollbar();
		pfScrollBar.reset();
	} else if (q.length>0) {
		document.getElementById("pfprogress").src = '/ucomm/templatedependents/templatecss/images/transpixel.gif';
		document.getElementById(pfresultsdiv).innerHTML = 'Please enter more information.';
		displayUNLPFScrollbar();
		pfScrollBar.reset();

	} else {
		document.getElementById("pfprogress").src = '/ucomm/templatedependents/templatecss/images/transpixel.gif';
		document.getElementById(pfresultsdiv).innerHTML = '';
		displayUNLPFScrollbar();
		pfScrollBar.reset();
	}
}
function getPeopleFinderResults(q) {
	var url = pfserviceurl + q;
	if (wait==true) {
		pfreq.abort();
		pfreq = new XMLHTTP();
	}
	pfreq.open("GET", url, true);
	pfreq.onreadystatechange = updatePeopleFinderResults;
	pfreq.send(null);
	wait=true;
}
function pfCatchUID(uid)
{
	alert('I\'ve caught '+uid+'. You should create your own pfCatchUID function.');
	return false;
}

function updatePeopleFinderResults() {
	if (pfreq.readyState == 4) {
		if (pfreq.status == 200) {
			document.getElementById(pfresultsdiv).innerHTML = pfreq.responseText;
			displayUNLPFScrollbar();
			pfScrollBar.reset();
		} else {
			document.getElementById(pfresultsdiv).innerHTML = 'Error loading results.';
		}
	}
	document.getElementById("pfprogress").src = '/ucomm/templatedependents/templatecss/images/transpixel.gif';
	wait = false;
	pfreq = new XMLHTTP();
}

function displayUNLPFScrollbar(){
pfScrollBar = new ScrollObj(10,25,168-2*18,"trackBarPF","upArrowPF","downArrowPF","dragButtonPF","pfResultsMask","pfresults");
}



function displayCalendar() {
	var calurl = "http://events.unl.edu/?format=hcalendar";
	calreq.open("GET", calurl, true);
	calreq.onreadystatechange = updateCalendarResults;
	calreq.send(null);
}
function updateCalendarResults()
{
	if (calreq.readyState == 4) {
		if (calreq.status == 200) {
			document.getElementById("calresults").innerHTML = calreq.responseText;
			displayUNLCalScrollbar();
			calScrollBar.reset();
		} else {
			document.getElementById("calresults").innerHTML = 'Error loading results.';
		}
	}
	wait = false;
	calreq = new XMLHTTP();
}

function displayUNLCalScrollbar(){
calScrollBar = new ScrollObj(10,25,220-2*18,"trackBarCal","upArrowCal","downArrowCal","dragButtonCal","calcontent","calresults");
}



function displayUNLWeather() {
	var weatherurl = "http://www.unl.edu/ucomm/templatedependents/templatesharedcode/scripts/current.html";
	weatherreq.open("GET", weatherurl, true);
	weatherreq.onreadystatechange = updateWeatherResults;
	weatherreq.send(null);
}
function updateWeatherResults()
{
	if (weatherreq.readyState == 4) {
		if (weatherreq.status == 200) {
			document.getElementById("weatherresults").innerHTML = weatherreq.responseText;
			displayUNLWeatherScrollbar();
			weatherScrollBar.reset();
		} else {
			document.getElementById("weatherresults").innerHTML = 'Error loading results.';
		}
	}
	wait = false;
	weatherreq = new XMLHTTP();

}

function displayUNLWeatherScrollbar(){
weatherScrollBar = new ScrollObj(10,25,220-2*18,"trackBarWeather","upArrowWeather","downArrowWeather","dragButtonWeather","weathercontent","weatherresults");
}