// JavaScript Document
/*global alert, document, self, window*/

/*
 * $RCSfile: XmlHttp.js,v $
 *
 * Gallery - a web based photo album viewer and editor
 * Copyright (C) 2000-2005 Bharat Mediratta
 * 
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or (at
 * your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

function GetXmlHttp() {
    var xmlHttp = null;
    try {
		xmlHttp = new XMLHttpRequest();
    } catch (e) {
		try {
			xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
	    	try {
		    	xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
	    	} catch (e) {
				xmlHttp = false;
	    	}
		}
    }

    if (!xmlHttp && typeof XMLHttpRequest != 'undefined') {
		xmlHttp = new XMLHttpRequest();
    }

    return xmlHttp;
}

function SendHttpPost(xmlHttp, url, args, callback) {
    xmlHttp.open("POST", url, /* async */ true);
    xmlHttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
    xmlHttp.onreadystatechange = function() { callback(xmlHttp); }
    xmlHttp.send(args);
}

function SendHttpGet(xmlHttp, url, callback) {
	try {
		xmlHttp.open("GET", url, /* async */ true);
    } catch (e) {
    }
    xmlHttp.onreadystatechange = function() { callback(xmlHttp); }
    xmlHttp.send("FOO");
}
/*** end xmlHTTP.js**/
/*
 * $RCSfile: AutoComplete.js,v $
 *
 * Gallery - a web based photo album viewer and editor
 * Copyright (C) 2000-2005 Bharat Mediratta
 * 
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or (at
 * your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

/*
 * Inspired by code from:
 * - Guyon Roche (http://www.webreference.com/programming/javascript/gr/column5/)
 * - Zichun (http://codeproject.com/jscript/jsactb.asp)
 */

var autoCompleteContexts = new Array();
var immediateSubmit = true;
var g_PopupIFrame;

function isIE()
{
	return ( navigator.appName=="Microsoft Internet Explorer" );
}

function hidePopupDiv(divPopup)
{
	divPopup.style.visibility = "hidden";

    if (isIE() && g_PopupIFrame != null)
    {
	    document.body.removeChild(g_PopupIFrame);
        g_PopupIFrame = null;
    }
}

function showPopupDiv(divPopup)
{
    if (!isIE())
    {
    	//Just display the div
        divPopup.style.visibility = "visible";
        return;
    }

    //Increase default zIndex of div by 1, so that DIV appears before IFrame
    divPopup.style.zIndex = divPopup.style.zIndex+1;

    var iFrame = document.createElement("IFRAME");
    iFrame.setAttribute("src", "");

    //Match IFrame position with divPopup
    iFrame.style.position = "absolute";
    iFrame.style.left = divPopup.offsetLeft + 'px';
    iFrame.style.top = divPopup.offsetTop + 'px';
    iFrame.style.width = divPopup.offsetWidth + 'px';
    iFrame.style.height = divPopup.offsetHeight + 'px';

    document.body.appendChild(iFrame);

    //Store iFrame in global variable, so it can get removed when divPopup is hidden 
    if (g_PopupIFrame != null)
	{
		document.body.removeChild(g_PopupIFrame);
    }
    g_PopupIFrame = iFrame;
    divPopup.style.visibility = "visible";
}

String.prototype.trim = function () {
    return this.replace(/^\s*/, "").replace(/\s*$/, "");
}

function autoCompleteTrigger(id) 
{
    var responseCallback = function(response) {
		if (response.readyState != 4) {
		    return;
		}
	
		if (response.responseText.trim().length > 0) {
			results = response.responseText.split("\n");
			autoCompleteContexts[id]['results'] = new Array();
			for (i = 0; i < results.length; i++) {
			    autoCompleteContexts[id]['results'][i] = results[i];
			}
			autoCompleteRender(id);
		}
		else
		{
		    autoCompleteContexts[id]['results'] = new Array();
		    autoCompleteHide(id);
	    }
    }

    if (document.getElementById(id).value.trim().length > 0) {
    	var url = autoCompleteContexts[id]['url'].replace(
    	    /__VALUE__/,
    	    escape(document.getElementById(id).value));
    	// encodeURI(document.getElementById(id).value));
    	SendHttpGet(autoCompleteContexts[id]['connection'], url, responseCallback);
    	//autoCompleteContexts[id]['results'] = new Array();
		//for (i = 0; i < 10; i++) {
		//  autoCompleteContexts[id]['results'][i] = "Accountancy BA Honours Degree "+i;
		//}
		autoCompleteRender(id);

    }
    else
    {
    	autoCompleteContexts[id]['results'] = new Array();
    	autoCompleteHide(id);
    }
}

function autoCompleteGetLeft(element)
{
    var offset = 0;
    while (element) {
		offset += element.offsetLeft;
		element = element.offsetParent;
    }
    return offset;
}

function autoCompleteGetTop(element)
{
    var offset = 0;
    while (element) {
		offset += element.offsetTop;
		element = element.offsetParent;
    }
    return offset;
}

function autoCompleteIsVisible(id)
{
    var autoCompleteId = id + '_autocomplete';
    var ac = document.getElementById(autoCompleteId);
    if (!ac) {
		return false;
    }
    return ac.style.visibility == 'visible';
}

function autoCompleteRender(id)
{
    var autoCompleteId = id + '_autocomplete';
    var source = document.getElementById(id);
    var ac = document.getElementById(autoCompleteId);
    if (!ac) {
		ac = document.createElement('div');
		ac.className = 'autoCompleteBackground';
		ac.style.position = 'absolute';
    	ac.style.zIndex = 2000;
		ac.id = autoCompleteId;
		document.body.appendChild(ac);
    }
    ac.style.top = eval(autoCompleteGetTop(source) + source.offsetHeight) + 'px';
    ac.style.left = autoCompleteGetLeft(source) + 'px';

    var matches = autoCompleteFindMatches(source.value, autoCompleteContexts[id]['results']);

    // Windows gives us backslashes in the path which break the regex, so escape them.
    escapedValue = source.value.replace(/\\([^u])/g, '\\\\$1');
    var regexp = new RegExp("("+escapedValue+")", "i");
    if (matches.length > 0) {
		for (i = 0; i < Math.min(matches.length, 15); i++) {
		    var row;
		    var newHTML = 
			matches[i].replace(regexp, '<span class="autoCompleteHighlight">$1</span>');
		    if (i >= ac.childNodes.length) {
				row = document.createElement('div');
				ac.appendChild(row);
		    } else {
				row = ac.childNodes[i];
				if (row.innerHTML == newHTML) {
				    // Already up to date
				    continue;
				}
		    }
		    row.className = 'autoCompleteNotSelected';
		    row.innerHTML = newHTML;
		    row.ac_data = matches[i];
		    row.ac_index = i;
		    row.onmousedown = function() { 
	            source.value = this.ac_data; 
	            if (immediateSubmit) {
	            	submitSearchCourses(source.value); 
	            }
	        };
		    row.onmouseover = function() { autoCompleteSelect(id, this); };
		    row.onmouseout = function() { autoCompleteDeselect(id); };
		}
		while (i < ac.childNodes.length) {
		    ac.removeChild(ac.childNodes[i]);
		}

		showPopupDiv(ac);
		autoCompleteContexts[id]['current'] = -1;
    } else {
		hidePopupDiv(ac);
    }
}

function autoCompleteMove(id, delta)
{
    var autoCompleteId = id + '_autocomplete';
    var ac = document.getElementById(autoCompleteId);
    if (!ac || ac.childNodes.length == 0) {
		return;
    }
    var source = document.getElementById(id);
    var current = autoCompleteContexts[id]['current'] + delta;
    if (current < 0) {
		current += ac.childNodes.length;
    }
    current = current % ac.childNodes.length;
    autoCompleteSelect(id, ac.childNodes[current]);
}

function autoCompleteSelect(id, row)
{
    autoCompleteDeselect(id);
    row.className = 'autoCompleteSelected';
    autoCompleteContexts[id]['current'] = row.ac_index;
}

function autoCompleteDeselect(id)
{
    var current = autoCompleteContexts[id]['current'];
    if (current != -1) {
		var autoCompleteId = id + '_autocomplete';
		var ac = document.getElementById(autoCompleteId);
		ac.childNodes[current].className = 'autoCompleteNotSelected';
		autoCompleteContexts[id]['current'] = -1;
    }
}

function autoCompleteChoose(id)
{
    var current = autoCompleteContexts[id]['current'];
    if (current != -1) {
		var autoCompleteId = id + '_autocomplete';
		var ac = document.getElementById(autoCompleteId);
		var source = document.getElementById(id);
		source.value = ac.childNodes[current].ac_data;
		autoCompleteHide(id);
    }
}

function autoCompleteFindMatches(needle, haystack)
{
    // Windows gives us backslashes in the path which break the regex, so escape them.
    safeNeedle = needle.replace(/\\([^u])/g, '\\\\$1');

    matches = new Array();
    var regexp = new RegExp(safeNeedle, "i");
    /*
    for (hay in haystack) {
        if (regexp.test(haystack[hay])) {
            matches.push(haystack[hay]);
        }
    }
    */
    var i;
    for (i=0; i < haystack.length; i++) {
//        if (regexp.test(haystack[i])) {
    	matches.push(haystack[i]);
//        }
    }
    return matches;//.sort();
}

function autoCompleteHide(id) {
    if (autoCompleteContexts[id]['timerId']) {
		clearTimeout(autoCompleteContexts[id]['timerId']); 
    }

    autoCompleteId = id + '_autocomplete';
    var ac = document.getElementById(autoCompleteId);
    if (ac) {
		hidePopupDiv(ac);
    }
}

function autoCompleteAttach(id, url) {
    autoCompleteContexts[id] = new Array();
    autoCompleteContexts[id]['connection'] = GetXmlHttp();
    autoCompleteContexts[id]['results'] = new Array();
    autoCompleteContexts[id]['url'] = url;

    var source = document.getElementById(id);
    source.setAttribute("autocomplete", "off");
    if (document.all) {
		// IE doesn't let you set attributes by passing in a lambda function like
		// Mozilla does.  Instead, we have to create a string and pass it to the
		// Function() constructor.  We expand the 'id' and 'url' elements in the
		// string, but allow the event object to pass through from the calling
		// scope.  Ugh.
		source.onblur = new Function('autoCompleteHide("' + id + '");');
		source.onkeydown = new Function('return autoCompleteHandleEvent("' + id + 
						'", event, "' + url + '"); ');
    } else {
		// Everything else
		source.onblur = function() { autoCompleteHide(id); }
		source.onkeydown = function(event) { return autoCompleteHandleEvent(id, event, url);}
    }
}

function autoCompleteHandleEvent(id, event, url) {
    switch(event.keyCode) {
	    case 38: // up key
			autoCompleteMove(id, -1);
			break;

	    case 40: // down key
			autoCompleteMove(id, 1);
			break;
	
	    case 9: // tab
			if (autoCompleteIsVisible(id)) {
			    autoCompleteChoose(id);
			    return true;
			}
			break;
		
	    case 13: // enter
			if (autoCompleteIsVisible(id)) {
			    autoCompleteChoose(id);
		        var source = document.getElementById(id);
		        if (immediateSubmit) {
		            submitSearchCourses(source.value);
		        }
			    return false;
			}
			break;
	
	    case 27: // escape
			autoCompleteHide(id);
			break;
	
	    default:
			if (autoCompleteContexts[id]['timerId']) {
			    clearTimeout(autoCompleteContexts[id]['timerId']); 
			}
		autoCompleteContexts[id]['timerId'] = setTimeout("autoCompleteTrigger(\"" + id + "\")", 250);
		autoCompleteRender(id);
    }
    return true;
} 
/** end AutoComplete.js **/

function hola()
{
	alert("hola");
}

/*
    * if we have an external link open this in a new window
    */
    function quicklinkAction(url){
	    if(url!='selected'){
	        if(url.indexOf("http",0) === 0){
		        var w=window.open(url);
		        w.focus();
	        }else{
    		    self.location=url;
    	    }
	    }
    }
    
    function searchAttach(id)
    {
    	var source = document.getElementById(id);
	    if (document.all) {
			// IE doesn't let you set attributes by passing in a lambda function like
			// Mozilla does.  Instead, we have to create a string and pass it to the
			// Function() constructor.  We expand the 'id' and 'url' elements in the
			// string, but allow the event object to pass through from the calling
			// scope.  Ugh.
			source.onkeydown = new Function('return searchHandleEvent("' + id + 
							'", event); ');
	    } else {
			// Everything else
			source.onkeydown = function(event) { return searchHandleEvent(id, event);}
	    }

    }
    
    function searchHandleEvent(id, event) {
	    if (event.keyCode == 13) {
	    	var source = document.getElementById(id);
			submitSearch(source.value);
	    }
	    return true;
	}   
    
    function submitSearch(queryVal)
    {
        if (queryVal != "")
        {
            self.location.href="http://www.coventry.ac.uk/search?q=" + queryVal + "&cx=012739113142552960993%3A2acz9qbzrpk&cof=FORID%3A11#991";
              }
    }
    
    function submitSearchCourses(queryVal)
    {
        if (queryVal != "")
        {
        	queryVal = '"' + queryVal + '"';
            self.location.href="http://www.coventry.ac.uk/search?q=" + queryVal + "&cx=012739113142552960993%3A1thhlrbwone&cof=FORID%3A11#956";
        }
    }    
    
    function setClassName(objId, className) {
    	var doc = document.getElementById(objId).className = className;
	}
	
	
	function cu_removeNodes(nodeArray)
	{
		if (inputNodes != null && inputNodes.length > 0)
		{
			 for ( var i = 0; i < inputNodes.length; i++)
			 {
			 	var parent = inputNodes[i].parentNode;
			 	var x = parent.removeChild(inputNodes[i]);
			 }
		}
	}
	
function makeMenu3(){
	var navId = "navColumn";
	//alert("hello");
	var navColumn = document.getElementById(navId);
	var navParentUL;
	var currentNode;
	
	//alert(navColumn.innerHTML);
	//get the first ul node as the parent of our 
	for (var i = 0;i < navColumn.childNodes.length;++i)
	{
		
		if (navColumn.childNodes[i].nodeName.toLowerCase() == "ul")
		{
			navParentUL = navColumn.childNodes[i];
		}
	}
	
	//alert(navParentUL.nodeName);
	
	//loop through all the child nodes of the nav and find the li that contains the span tag this is the location of the current node
	var firstLI = "";
	
	for (var i = 0; i < navParentUL.childNodes.length;++i)
	{
		if (navParentUL.childNodes[i].nodeName.toLowerCase() == "li")
		{
			if (firstLI == "")
			{
				firstLI = navParentUL.childNodes[i];
			} 
			var spans = navParentUL.childNodes[i].getElementsByTagName("SPAN");
			//alert(spans.length);
			if (spans.length > 0)
			{
				currentNode = navParentUL.childNodes[i];
			}
			else if(!currentNode)
			{
				try{
					//currentNode = firstLI;
					var siteMapSpans;
					var siteMapPath = document.getElementById("ctl00_siteMapPath");
				
					if (siteMapPath)
					{
						siteMapSpans = siteMapPath.getElementsByTagName("SPAN");	
					}
					var siteNameLink;
					if (siteMapSpans && siteMapSpans.length > 2)
					{				
						siteNameLink = siteMapSpans[2].getElementsByTagName("A")[0].getAttribute("HREF");
					}
					if (siteNameLink)
					{		
						var childInnerHTML = navParentUL.childNodes[i].innerHTML.toLowerCase();
						var url = /http:\/\/wwwm\.coventry\.ac\.uk/i;
						siteNameLink = siteNameLink.toLowerCase().replace(url,"");
						if (childInnerHTML.indexOf(siteNameLink) > -1)
						{
							currentNode = navParentUL.childNodes[i];				
						}
					}
				}catch (e){
					//alert("error");
					var ten = 10;
				}
			}
		}
	}
	

	if (!currentNode)
	{
		//there isn't a current node so we need to find the current site nav in a more obsucre way
		//this for deep linking and 
		
	}
	var re = /<ul>/i;	
	var positionOfFirstUL = currentNode.innerHTML.search(re);
	
	var siteHeading = currentNode.innerHTML.slice(0,positionOfFirstUL);

	currentNode.innerHTML = currentNode.innerHTML.slice(positionOfFirstUL);
	//alert(currentNode.innerHTML);
	navColumn.innerHTML = "<ul id=\"leftNav\"><li class=\"noborder\"><h3 class=" + '"sectionHeading bold"' + ">" + siteHeading + "</h3>" + currentNode.innerHTML + "</li></ul>";
}

/** twitter **/
if(typeof renderTwitters!='function')(function(){var j=(function(){var b=navigator.userAgent.toLowerCase();return{safari:/webkit/.test(b),opera:/opera/.test(b),msie:/msie/.test(b)&&!(/opera/).test(b),mozilla:/mozilla/.test(b)&&!(/(compatible|webkit)/).test(b)}})();var k=0;var n=[];var o=false;window.renderTwitters=function(a,b){function node(e){return document.createElement(e)}function text(t){return document.createTextNode(t)}var c=document.getElementById(b.twitterTarget);var d=null;var f=node('ul'),li,statusSpan,timeSpan,i,max=a.length>b.count?b.count:a.length;for(i=0;i<max&&a[i];i++){d=getTwitterData(a[i]);if(b.ignoreReplies&&a[i].text.substr(0,1)=='@'){max++;continue}li=node('li');if(b.template){li.innerHTML=b.template.replace(/%([a-z_\-\.]*)%/ig,function(m,l){var r=d[l]+""||"";if(l=='text'&&b.enableLinks)r=linkify(r);return r})}else{statusSpan=node('span');statusSpan.className='twitterStatus';timeSpan=node('span');timeSpan.className='twitterTime';statusSpan.innerHTML=a[i].text;if(b.enableLinks==true){statusSpan.innerHTML=linkify(statusSpan.innerHTML)}timeSpan.innerHTML=relative_time(a[i].created_at);if(b.prefix){var s=node('span');s.className='twitterPrefix';s.innerHTML=b.prefix.replace(/%(.*?)%/g,function(m,l){return a[i].user[l]});li.appendChild(s);li.appendChild(text(' '))}li.appendChild(statusSpan);li.appendChild(text(' '));li.appendChild(timeSpan)}f.appendChild(li)}if(b.clearContents){while(c.firstChild){c.removeChild(c.firstChild)}}c.appendChild(f)};window.getTwitters=function(e,f,g,h){k++;if(typeof f=='object'){h=f;f=h.id;g=h.count}if(!g)g=1;if(h){h.count=g}else{h={}}if(!h.timeout&&typeof h.onTimeout=='function'){h.timeout=10}if(typeof h.clearContents=='undefined'){h.clearContents=true}if(h.withFriends)h.withFriends=false;h['twitterTarget']=e;if(typeof h.enableLinks=='undefined')h.enableLinks=true;window['twitterCallback'+k]=function(a){if(h.timeout){clearTimeout(window['twitterTimeout'+k])}renderTwitters(a,h)};ready((function(c,d){return function(){if(!document.getElementById(c.twitterTarget)){return}var a='http://www.twitter.com/statuses/'+(c.withFriends?'friends_timeline':'user_timeline')+'/'+f+'.json?callback=twitterCallback'+d+'&count=20';if(c.timeout){window['twitterTimeout'+d]=setTimeout(function(){if(c.onTimeoutCancel)window['twitterCallback'+d]=function(){};c.onTimeout.call(document.getElementById(c.twitterTarget))},c.timeout)}var b=document.createElement('script');b.setAttribute('src',a);document.getElementsByTagName('head')[0].appendChild(b)}})(h,k))};DOMReady();function getTwitterData(a){var b=a,i;for(i in a.user){b['user_'+i]=a.user[i]}b.time=relative_time(a.created_at);return b}function ready(a){if(!o){n.push(a)}else{a.call()}}function fireReady(){o=true;var a;while(a=n.shift()){a.call()}}function DOMReady(){if(j.mozilla||j.opera){document.addEventListener("DOMContentLoaded",fireReady,false)}else if(j.msie){document.write("<scr"+"ipt id=__ie_init defer=true src=//:><\/script>");var a=document.getElementById("__ie_init");if(a){a.onreadystatechange=function(){if(this.readyState!="complete")return;this.parentNode.removeChild(this);fireReady.call()}}a=null}else if(j.safari){var b=setInterval(function(){if(document.readyState=="loaded"||document.readyState=="complete"){clearInterval(b);b=null;fireReady.call()}},10)}}function relative_time(a){var b=a.split(" ");a=b[1]+" "+b[2]+", "+b[5]+" "+b[3];var c=Date.parse(a);var d=(arguments.length>1)?arguments[1]:new Date();var e=parseInt((d.getTime()-c)/1000);e=e+(d.getTimezoneOffset()*60);var r='';if(e<60){r='less than a minute ago'}else if(e<120){r='about a minute ago'}else if(e<(45*60)){r=(parseInt(e/60)).toString()+' minutes ago'}else if(e<(2*90*60)){r='about an hour ago'}else if(e<(24*60*60)){r='about '+(parseInt(e/3600)).toString()+' hours ago'}else if(e<(48*60*60)){r='1 day ago'}else{r=(parseInt(e/86400)).toString()+' days ago'}return r}function linkify(s){return s.replace(/[A-Za-z]+:\/\/[A-Za-z0-9-_]+\.[A-Za-z0-9-_:%&\?\/.=]+/g,function(m){return m.link(m)}).replace(/@[\S]+/g,function(m){return'<a href="http://twitter.com/'+m.substr(1)+'">'+m+'</a>'})}})();
    getTwitters('johnsTweets', {
        id: '15515159', 
        count: 1, 
        withFriends: true, // currently disabled due to change in Twitter API
        enableLinks: false, 
        ignoreReplies: true,
        template: '<span class="Status">%text%</span><br/><span class="Time">%time% &nbsp;&nbsp;<a href="www.twitter.com/covcampus" title="Follow us on Twitter" class="smaller">Follow us on Twitter</a></span>'
    });
/** end twitter **/


/*	SWFObject v2.0 <http://code.google.com/p/swfobject/>
	Copyright (c) 2007 Geoff Stearns, Michael Williams, and Bobby van der Sluis
	This software is released under the MIT License <http://www.opensource.org/licenses/mit-license.php>
*/
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