/***********************************
 *
 *	Common Javascript Methods
 *
 ***********************************/

function MM_openBrWindow(theURL,winName,features) 
{
	window.open(theURL,winName,features);
}

function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}

// function to remove leading and trailing spaces
function trimStr(inString) 
{
	inString = inString.replace( /^\s+/g, "" );// strip leading
	return inString.replace( /\s+$/g, "" );// strip trailing
}

// function for content query to grab the url from
// sharepoint Link field.
function GetArticleHyperlinkUrl(HyperLinkFieldContent)
{
	if(HyperLinkFieldContent.search(/<a href=\"/) != -1)
	{
		hyperlink = HyperLinkFieldContent.replace(/<a href=\"/, "");
		hyperlink = hyperlink.replace(/\">(.)*<\/a>/, "");
		return hyperlink;
	}
	return null;
}

// check whether the given url is a local site
function isUrlLocal(theURL)
{
	//strip the http:// tags
	targetUrl = theURL.replace(/(http:\/\/)/, "");
	currentUrl = window.location.href.replace(/(http:\/\/)/, "");
	//strip the subsites
	targetUrl = targetUrl.replace(/\/(.)*$/, "");
	currentUrl = currentUrl.replace(/\/(.)*$/, "");

	if(currentUrl.match(targetUrl))
		return true;
	return false;
}

// function for content query to grab the url of image src
function GetImgSrcUrl(ImageTag)
{
	if(ImageTag.search(/src=\"/) != -1)
	{
		imgUrl = ImageTag.replace(/.*src=\"/, "");
		imgUrl = imgUrl.replace(/\".*>/, "");
		return imgUrl;
	}
	return null;
}


//used in eXtra article pages
function GetMonthNameInFull(shortMonthName)
{
	var monthText = "";
	switch((shortMonthName.substring(0,3)).toLowerCase())
	{
		case "jan": monthText = "January"; break;
		case "feb": monthText = "February"; break;
		case "mar": monthText = "March"; break;
		case "apr": monthText = "April"; break;
		case "may": monthText = "May"; break;
		case "jun": monthText = "June"; break;
		case "jul": monthText = "July"; break;
		case "aug": monthText = "August"; break;
		case "sep": monthText = "September"; break;
		case "oct": monthText = "October"; break;
		case "nov": monthtext = "November"; break;
		case "dec": monthText = "December"; break;
	}
	return monthText;
}


function GetFullMonthNameFromNum(monthInNum)
{
	var monthText = "";
	switch(monthInNum.replace(/^(0)/, ""))
	{
		case "1": monthText = "Jan"; break;
		case "2": monthText = "Feb"; break;
		case "3": monthText = "Mar"; break;
		case "4": monthText = "Apr"; break;
		case "5": monthText = "May"; break;
		case "6": monthText = "Jun"; break;
		case "7": monthText = "Jul"; break;
		case "8": monthText = "Aug"; break;
		case "9": monthText = "Sep"; break;
		case "10": monthText = "Oct"; break;
		case "11": monthText = "Nov"; break;
		case "12": monthText = "Dec"; break;
	}
	return monthText;
}


//DateTime: 2003-12-31 00:00:00
function FormatNewsDate(dateTime)
{
	dateTimeArray = dateTime.split(' ');
	date = dateTimeArray[0];
	dateArray = date.split('-');
	month = dateArray[1];
	day = dateArray[2];
	year = dateArray[0];

	return ( day + " " + GetFullMonthNameFromNum(month) + " " + year );
}

//get query string
function queryString(searchName) 
{
	queryString = window.location.search.substring(1);
	stringArray = queryString.split("&");
	for (i=0;i<stringArray .length;i++) 
	{
		currentVar = stringArray [i].split("=");
		if (currentVar [0] == searchName) 
		{
			return currentVar [1];
		}
	}
	return null;
}


//eXtra archive listing dropdown list change
function eXtraDropDownChange(dropdownList)
{
	currentUrlString = window.location.href.split("?");

	urlOnly = currentUrlString[0].replace(/^(http:\/\/)/, "");
	urlOnlySplit = urlOnly.split("/");
	newUrl = window.location.protocol + '//'
	
	for(i=0; i<urlOnlySplit.length-1; i++)
	{
		newUrl += ( urlOnlySplit[i] + "/" );
	}
	newUrl = newUrl.replace(/^(https:\/\/https:\/\/)/, "https://");
	newUrl += "default.aspx?" + dropdownList[dropdownList.selectedIndex].value;

	window.location = newUrl;
}


//populate quicklinks options
function populateQuickLinks()
{
	quickLinkObj = document.getElementById("QuickLinks");
	if(!quickLinkObj)
		return;		
	quickLinkObj.options[1] = new Option('> Academic Calendar', '/aa/Pages/calendar.aspx');
	quickLinkObj.options[2] = new Option('> Campus Map', 'http://www.street-directory.com/ngeeann/campus.cgi?x=1750&y=1490&level=1');
	quickLinkObj.options[3] = new Option('> Career Opportunities', '/home/aboutnp/jobs/');
	quickLinkObj.options[4] = new Option('> CET Academy', '/cet/');
	quickLinkObj.options[5] = new Option('> Centres of Innovation', '/coi/');
	quickLinkObj.options[6] = new Option('> Course Brochures', '/home/courses/');
	quickLinkObj.options[7] = new Option('> Entrepreneurs-Connect@NP', '/entrepreneurs/');
	quickLinkObj.options[8] = new Option('> Graduate Employment Survey', '/home/media/release/year2008/jan_mar/Pages/20080121.aspx');
	quickLinkObj.options[9] = new Option('> Ideawerkz Innovation Incubator', '/ideawerkz/');
	quickLinkObj.options[10] = new Option('> Library', '/library/');
	quickLinkObj.options[11] = new Option('> Student Services', '/ss/');
	quickLinkObj.options[12] = new Option('> Student Dev. & Alumni Relations', '/sdar/');
	quickLinkObj.options[13] = new Option('> Scheduled Maintenance', '/cc/scheduledmaint/');

}


//for In Video files
function displayVideo(videoFileUrl)
{
	MM_openBrWindow( "/_layouts/App/ViewVideo.aspx?videoUrl=" + videoFileUrl, "Video" ,"status=yes,width=320,height=320");
}


// function for content query to grab the url from
// sharepoint Hyperlink column in list.
function GetSiteColumnHyperlinkUrl(HyperLinkFieldContent)
{
	if(HyperLinkFieldContent.search(/^http:/) != -1)
	{	
		hyperlink = HyperLinkFieldContent.replace(/,(.*)$/, "");
		return hyperlink;
	}
	return null;
}


// Encode html string
//http://www.yuki-onna.co.uk/html/encode.html
// added 20090310
function encodeHtml(input) {
	encodedHtml = escape(input);
    encodedHtml = encodedHtml.replace(/\//g,"%2F");
    encodedHtml = encodedHtml.replace(/\?/g,"%3F");
    encodedHtml = encodedHtml.replace(/=/g,"%3D");
    encodedHtml = encodedHtml.replace(/&/g,"%26");
    encodedHtml = encodedHtml.replace(/@/g,"%40");
    return encodedHtml;
} 



/*************************************************************************
 * function generally used by web designer using dreamweaver             *
 * inserted by Leow Boon Swee on 13/01/2009                                                                      *
 *************************************************************************/
 
function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  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);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function MM_showHideLayers() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}

function MM_nbGroup(event, grpName) { //v6.0
  var i,img,nbArr,args=MM_nbGroup.arguments;
  if (event == "init" && args.length > 2) {
    if ((img = MM_findObj(args[2])) != null && !img.MM_init) {
      img.MM_init = true; img.MM_up = args[3]; img.MM_dn = img.src;
      if ((nbArr = document[grpName]) == null) nbArr = document[grpName] = new Array();
      nbArr[nbArr.length] = img;
      for (i=4; i < args.length-1; i+=2) if ((img = MM_findObj(args[i])) != null) {
        if (!img.MM_up) img.MM_up = img.src;
        img.src = img.MM_dn = args[i+1];
        nbArr[nbArr.length] = img;
    } }
  } else if (event == "over") {
    document.MM_nbOver = nbArr = new Array();
    for (i=1; i < args.length-1; i+=3) if ((img = MM_findObj(args[i])) != null) {
      if (!img.MM_up) img.MM_up = img.src;
      img.src = (img.MM_dn && args[i+2]) ? args[i+2] : ((args[i+1])? args[i+1] : img.MM_up);
      nbArr[nbArr.length] = img;
    }
  } else if (event == "out" ) {
    for (i=0; i < document.MM_nbOver.length; i++) {
      img = document.MM_nbOver[i]; img.src = (img.MM_dn) ? img.MM_dn : img.MM_up; }
  } else if (event == "down") {
    nbArr = document[grpName];
    if (nbArr)
      for (i=0; i < nbArr.length; i++) { img=nbArr[i]; img.src = img.MM_up; img.MM_dn = 0; }
    document[grpName] = nbArr = new Array();
    for (i=2; i < args.length-1; i+=2) if ((img = MM_findObj(args[i])) != null) {
      if (!img.MM_up) img.MM_up = img.src;
      img.src = img.MM_dn = (args[i+1])? args[i+1] : img.MM_up;
      nbArr[nbArr.length] = img;
  } }
}

/*************************************************************************
 * function used for time format conversion                              *
 * inserted by Leow Boon Swee on 11/01/2010                              *
 *************************************************************************/
 
var dateFormat = function () {
	var	token = /d{1,4}|m{1,4}|yy(?:yy)?|([HhMsTt])\1?|[LloSZ]|"[^"]*"|'[^']*'/g,
		timezone = /\b(?:[PMCEA][SDP]T|(?:Pacific|Mountain|Central|Eastern|Atlantic) (?:Standard|Daylight|Prevailing) Time|(?:GMT|UTC)(?:[-+]\d{4})?)\b/g,
		timezoneClip = /[^-+\dA-Z]/g,
		pad = function (val, len) {
			val = String(val);
			len = len || 2;
			while (val.length < len) val = "0" + val;
			return val;
		};

	// Regexes and supporting functions are cached through closure
	return function (date, mask, utc) {
		var dF = dateFormat;

		// You can't provide utc if you skip other args (use the "UTC:" mask prefix)
		if (arguments.length == 1 && Object.prototype.toString.call(date) == "[object String]" && !/\d/.test(date)) {
			mask = date;
			date = undefined;
		}

		// Passing date through Date applies Date.parse, if necessary
		date = date ? new Date(date) : new Date;
		if (isNaN(date)) throw SyntaxError("invalid date");

		mask = String(dF.masks[mask] || mask || dF.masks["default"]);

		// Allow setting the utc argument via the mask
		if (mask.slice(0, 4) == "UTC:") {
			mask = mask.slice(4);
			utc = true;
		}

		var	_ = utc ? "getUTC" : "get",
			d = date[_ + "Date"](),
			D = date[_ + "Day"](),
			m = date[_ + "Month"](),
			y = date[_ + "FullYear"](),
			H = date[_ + "Hours"](),
			M = date[_ + "Minutes"](),
			s = date[_ + "Seconds"](),
			L = date[_ + "Milliseconds"](),
			o = utc ? 0 : date.getTimezoneOffset(),
			flags = {
				d:    d,
				dd:   pad(d),
				ddd:  dF.i18n.dayNames[D],
				dddd: dF.i18n.dayNames[D + 7],
				m:    m + 1,
				mm:   pad(m + 1),
				mmm:  dF.i18n.monthNames[m],
				mmmm: dF.i18n.monthNames[m + 12],
				yy:   String(y).slice(2),
				yyyy: y,
				h:    H % 12 || 12,
				hh:   pad(H % 12 || 12),
				H:    H,
				HH:   pad(H),
				M:    M,
				MM:   pad(M),
				s:    s,
				ss:   pad(s),
				l:    pad(L, 3),
				L:    pad(L > 99 ? Math.round(L / 10) : L),
				t:    H < 12 ? "a"  : "p",
				tt:   H < 12 ? "am" : "pm",
				T:    H < 12 ? "A"  : "P",
				TT:   H < 12 ? "AM" : "PM",
				Z:    utc ? "UTC" : (String(date).match(timezone) || [""]).pop().replace(timezoneClip, ""),
				o:    (o > 0 ? "-" : "+") + pad(Math.floor(Math.abs(o) / 60) * 100 + Math.abs(o) % 60, 4),
				S:    ["th", "st", "nd", "rd"][d % 10 > 3 ? 0 : (d % 100 - d % 10 != 10) * d % 10]
			};

		return mask.replace(token, function ($0) {
			return $0 in flags ? flags[$0] : $0.slice(1, $0.length - 1);
		});
	};
}();

// Some common format strings
dateFormat.masks = {
	"default":      "ddd mmm dd yyyy HH:MM:ss",
	shortDate:      "m/d/yy",
	mediumDate:     "mmm d, yyyy",
	longDate:       "mmmm d, yyyy",
	fullDate:       "dddd, mmmm d, yyyy",
	shortTime:      "h:MM TT",
	mediumTime:     "h:MM:ss TT",
	longTime:       "h:MM:ss TT Z",
	isoDate:        "yyyy-mm-dd",
	isoTime:        "HH:MM:ss",
	isoDateTime:    "yyyy-mm-dd'T'HH:MM:ss",
	isoUtcDateTime: "UTC:yyyy-mm-dd'T'HH:MM:ss'Z'"
};

// Internationalization strings
dateFormat.i18n = {
	dayNames: [
		"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat",
		"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"
	],
	monthNames: [
		"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec",
		"January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"
	]
};

// For convenience...
Date.prototype.format = function (mask, utc) {
	return dateFormat(this, mask, utc);
};