// Author : Raghavendar Thirumala (Thiru) 

//var url_base = "http://hs-test.ucdmc.ucdavis.edu" ; 
var url_base = "http://www.ucdmc.ucdavis.edu" ; 
var webtrends_domain = "http://webtrends/";

// Method to parse the URL to get the
// param value from the URL for a GET request
// Takes the param name as the function input
// and an optional parameter that keeps the case
// otherwise converts the param value to lowercase

function getURLParam(strParamName, keepCase){
    var strReturn = "";
    var strHref = window.location.href;
    if ( strHref.indexOf("?") > -1 ){
        
        var strQueryString = "";
        if(keepCase) {
            strQueryString = strHref.substr(strHref.indexOf("?"));
        } else {
            strQueryString = strHref.substr(strHref.indexOf("?")).toLowerCase();
        }
        var aQueryString = strQueryString.split("&");
        for ( var iParam = 0; iParam < aQueryString.length; iParam++ ){
            if (aQueryString[iParam].indexOf(strParamName + "=") > -1 ){
                var aParam = aQueryString[iParam].split("=");
                strReturn = aParam[1];
                break;
            }
        }
    }
    return strReturn;
}

// Generic method used to get the Servlet URL for list of news releases 
// based on the various GET params passed to the current page
// This method takes three paramaters
// Category - To filter the news releases by category
// no_of_months - No of months of news releases to retrieve from the DB
// is_index_page - for an index page, pass true else false
function getScriptURL(category, no_of_months, is_index_page){

    var context_root = "/press"; 
    var days = "120";
    if((no_of_months) && (!isNaN(no_of_months))){
        days = no_of_months * 31;
    }
    var scriptUrl = url_base + context_root + "/press.js?type=latest";
    var thisUrl = window.location.href;
    if (getURLParam("svr")) {
        url_base = getURLParam("svr");
        scriptUrl = url_base + context_root + "/press.js?type=latest" + "&svr=" + url_base;
    }
    if (getURLParam("mode")) {
        var mode = getURLParam("mode");
        if (mode == "search") {
            scriptUrl = url_base + context_root + "/searchpress.js?mode=" + mode;
        }else if (mode == "previewarch") {
            scriptUrl = url_base + context_root + "/archpress.js?mode=" + mode;
        }else if (mode == "previewpub"){
            scriptUrl = url_base + context_root + "/press.js?mode=" + mode;
        }else {
            scriptUrl = url_base + context_root + "/press.js?mode=" + mode;
        }
        if (getURLParam("svr")) {
            url_base = getURLParam("svr");
            if (mode == "search") {
                scriptUrl = url_base + context_root + "/searchpress.js?mode=" + mode + "&svr=" + url_base;
            }else if (mode == "previewarch") {
                scriptUrl = url_base + context_root + "/archpress.js?mode=" + mode + "&svr=" + url_base;
            }else if (mode == "previewpub"){
                scriptUrl = url_base + context_root + "/press.js?mode=" + mode + "&svr=" + url_base;
            }else {
                scriptUrl = url_base + context_root + "/press.js?mode=" + mode + "&svr=" + url_base;
            }
        }
    }
 
    if (getURLParam("n")) {
        scriptUrl = scriptUrl + "&n=" + getURLParam("n");
    }else {
        if(is_index_page){
            scriptUrl = scriptUrl + "&n=" + days;
        }
    }
    if (getURLParam("cat")) {
        scriptUrl = scriptUrl + "&cat=" + getURLParam("cat");
    }else if ((category) && (category!="")){
        scriptUrl = scriptUrl + "&cat=" + category;
    }
    
    if (getURLParam("headline")) {
        scriptUrl = scriptUrl + "&headline=" + getURLParam("headline");
    }
    if (getURLParam("fromdate")) {
        scriptUrl = scriptUrl + "&fromdate=" + getURLParam("fromdate");
    }
    if (getURLParam("todate")) {
        scriptUrl = scriptUrl + "&todate=" + getURLParam("todate");
    }
    if (getURLParam("keyword")) {
        scriptUrl = scriptUrl + "&keyword=" + getURLParam("keyword");
    }
    if (getURLParam("site")) {
        scriptUrl = scriptUrl + "&site=" + getURLParam("site");
    }

    return scriptUrl;
}

// Generic method used to get the Servlet URL for news detail

function getScriptURLDetail(){
    var request_URL = String(window.location);
    while (request_URL.indexOf("%20") > -1 ) {
        request_URL = request_URL.replace("%20"," ");
    }
    var param_pos = request_URL.indexOf("?");
    var param = request_URL.slice(param_pos);
    var context_root  = "/press";         // /newsroom
    var scriptUrl = url_base + context_root + "/detail.js";
    if (getURLParam("svr")) {
        url_base = getURLParam("svr");
        scriptUrl = url_base + context_root + "/detail.js";
    }
    if (getURLParam("table")) {
    } else {
        if(document.referrer!=''){
            var referrer_base = document.referrer.toLowerCase();
            if(referrer_base.indexOf(webtrends_domain) != -1) {
                param = param+"&table=drafted";
            }
        }
    }
    
    
    var servlet_URL = scriptUrl + param;
    return servlet_URL;
}


function getScriptURLDetailWT(){
    var request_URL = String(window.location);
    while (request_URL.indexOf("%20") > -1 ) {
        request_URL = request_URL.replace("%20"," ");
    }
    var param_pos = request_URL.indexOf("?");
    var param = request_URL.slice(param_pos);
    var context_root  = "/press";         // /newsroom
    var scriptUrl = url_base + context_root + "/detail.js";
    if (getURLParam("svr")) {
        url_base = getURLParam("svr");
        scriptUrl = url_base + context_root + "/detail.js";
    }
    if (getURLParam("table")) {
    } else {
        param = param +"&table=drafted";
    }    
    var servlet_URL = scriptUrl + param;
    return servlet_URL;
}


// Get the website - obsolete, not used
//function getBranch()
//{
//    var URLpath = String(window.location.pathname);
//    var URLsplit = String(URLpath.split("/",2));
//    var URLbranch = URLsplit.replace(",","");
//    return(URLbranch);
//}


// Returns the keys parameter from the keyword array
function getKeywordsString(keywordArray) {
    var keys = "";
     
    if (typeof keywordArray != 'undefined') {   
      if (keywordArray.length > 0) {
          var separator = "";
          for (var i=0; i < keywordArray.length; i++) {
             keys += (separator + keywordArray[i]) ;
             separator = "@#$#"           
          }
      }
    }
    keys = encodeURIComponent(keys);
    keys = "&keyword=" + keys;
    //alert("keys being returned is " + keys);
    return keys;
}


//Method to highlight words/phrases within the web page

function doHighlight(bodyText, searchTerm, highlightStartTag, highlightEndTag)
{
    if ((!highlightStartTag) || (!highlightEndTag)) {
        highlightStartTag = "<font style='color:blue; background-color:yellow;' face=arial>";
        highlightEndTag = "</font>";
    }
    var newText = "";
    var i = -1;
    var lcSearchTerm = searchTerm.toLowerCase();
    var lcBodyText = bodyText.toLowerCase();

    while (bodyText.length > 0) {
        i = lcBodyText.indexOf(lcSearchTerm, i+1);
        var newTextTemp = "";
        if (i < 0) {
            newTextTemp = bodyText;
            bodyText = "";
        } else {
            // skip anything inside an HTML tag
            if (bodyText.lastIndexOf(">", i) >= bodyText.lastIndexOf("<", i)) {
                // skip anything inside a <script> block
                if (lcBodyText.lastIndexOf("/script>", i) >= lcBodyText.lastIndexOf("<script", i)) {
                    newTextTemp = bodyText.substring(0, i) + highlightStartTag + bodyText.substr(i, searchTerm.length) + highlightEndTag;
                    bodyText = bodyText.substr(i + searchTerm.length);
                    lcBodyText = bodyText.toLowerCase();
                    i = -1;
                }
            }
        }
        newText += newTextTemp;
    }
    return newText;
}

//Method to highlight words/phrases within the web page
function highlightSearchTerms(searchText, warnOnFailure, highlightStartTag, highlightEndTag)
{   
    searchArray = searchText;
    var articleText = document.getElementById("articleList").innerHTML; 
    if ((!highlightStartTag) || (!highlightEndTag)) {
        highlightStartTag = "<font style='color:blue; background-color:yellow;' face=arial>";
        highlightEndTag = "</font>";
    }
    
    for (var i = 0; i < searchArray.length; i++) {
    	var searchString = new RegExp(searchArray[i], "gim");
        articleText = doHighlight(articleText, searchArray[i], highlightStartTag, highlightEndTag);

    }

    document.getElementById("articleList").innerHTML = articleText;
} 

//Method that takes in the no_of_months
//and returns a date that is less by those no_of_months from the current date
// Sets the day component to 1

function get_display_until_date(no_of_months) {

    var today_date = new Date();
    var month_no = today_date.getMonth();
    var year_no  = today_date.getFullYear();
    var date_no  = 1;
    //year_no+=1900;

    var remaining_months = 0;

    if(no_of_months > 12) {
        var no_of_years = no_of_months/12;
        var no_of_years_to_cut = parseInt(no_of_years);
        year_no = year_no-no_of_years_to_cut;
        remaining_months = no_of_months - (no_of_years_to_cut * 12);
    } else {
        remaining_months = no_of_months;
    }

    if(month_no>(remaining_months-1)){
        month_no = month_no - (remaining_months-1);
    } else {
        month_no = 12 + month_no - (remaining_months-1);
        year_no = year_no-1;
    }

    var display_until_date = new Date();
    display_until_date.setFullYear(year_no,(month_no),date_no);
    display_until_date.setHours(0);
    display_until_date.setMinutes(0);
    display_until_date.setSeconds(0);
    //alert(display_until_date);
    return display_until_date;
}



// Generic Date functions


// Utility function to append a 0 to single-digit numbers
Date.LZ = function(x) {
    return(x<0||x>9?"":"0")+x
};
// Full month names. Change this for local month names
Date.monthNames = new Array('January','February','March','April','May','June','July','August','September','October','November','December');

// Month abbreviations. Change this for local month names
Date.monthAbbreviations = new Array('Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec');

// Full day names. Change this for local month names
Date.dayNames = new Array('Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday');

// Day abbreviations. Change this for local month names
Date.dayAbbreviations = new Array('Sun','Mon','Tue','Wed','Thu','Fri','Sat');

// Used for parsing ambiguous dates like 1/2/2000 - default to preferring 'American' format meaning Jan 2.
// Set to false to prefer 'European' format meaning Feb 1
Date.preferAmericanFormat = true;

// If the getFullYear() method is not defined, create it
if (!Date.prototype.getFullYear) { 
    Date.prototype.getFullYear = function() { var yy=this.getYear(); return (yy<1900?yy+1900:yy); } ;
} 

// Parse a string and convert it to a Date object.
// If no format is passed, try a list of common formats.
// If string cannot be parsed, return null.
// Avoids regular expressions to be more portable.
Date.parseString = function(val, format) {
    // If no format is specified, try a few common formats
    if (typeof(format)=="undefined" || format==null || format=="") {
        var generalFormats=new Array('y-M-d','MMM d, y','MMM d,y','y-MMM-d','d-MMM-y','MMM d','MMM-d','d-MMM');
        var monthFirst=new Array('M/d/y','M-d-y','M.d.y','M/d','M-d');
        var dateFirst =new Array('d/M/y','d-M-y','d.M.y','d/M','d-M');
        var checkList=new Array(generalFormats,Date.preferAmericanFormat?monthFirst:dateFirst,Date.preferAmericanFormat?dateFirst:monthFirst);
        for (var i=0; i<checkList.length; i++) {
            var l=checkList[i];
            for (var j=0; j<l.length; j++) {
                var d=Date.parseString(val,l[j]);
                if (d!=null) { 
                    return d; 
                }
            }
        }
        return null;
    };

    this.isInteger = function(val) {
        for (var i=0; i < val.length; i++) {
            if ("1234567890".indexOf(val.charAt(i))==-1) { 
                return false; 
            }
        }
        return true;
    };
    this.getInt = function(str,i,minlength,maxlength) {
        for (var x=maxlength; x>=minlength; x--) {
            var token=str.substring(i,i+x);
            if (token.length < minlength) { 
                return null; 
            }
            if (this.isInteger(token)) { 
                return token; 
            }
        }
        return null;
    };
    val=val+"";
    format=format+"";
    var i_val=0;
    var i_format=0;
    var c="";
    var token="";
    var token2="";
    var x,y;
    var year=new Date().getFullYear();
    var month=1;
    var date=1;
    var hh=0;
    var mm=0;
    var ss=0;
    var ampm="";
    while (i_format < format.length) {
        // Get next token from format string
        c=format.charAt(i_format);
        token="";
        while ((format.charAt(i_format)==c) && (i_format < format.length)) {
            token += format.charAt(i_format++);
        }
        // Extract contents of value based on format token
        if (token=="yyyy" || token=="yy" || token=="y") {
            if (token=="yyyy") { 
                x=4;y=4; 
            }
            if (token=="yy") { 
                x=2;y=2; 
            }
            if (token=="y") { 
                x=2;y=4; 
            }
            year=this.getInt(val,i_val,x,y);
            if (year==null) { 
                return null; 
            }
            i_val += year.length;
            if (year.length==2) {
                if (year > 70) { 
                    year=1900+(year-0); 
                }
                else { 
                    year=2000+(year-0); 
                }
            }
        }
        else if (token=="MMM" || token=="NNN"){
            month=0;
            var names = (token=="MMM"?(Date.monthNames.concat(Date.monthAbbreviations)):Date.monthAbbreviations);
            for (var i=0; i<names.length; i++) {
                var month_name=names[i];
                if (val.substring(i_val,i_val+month_name.length).toLowerCase()==month_name.toLowerCase()) {
                    month=(i%12)+1;
                    i_val += month_name.length;
                    break;
                }
            } 
            if ((month < 1)||(month>12)){
                return null;
            }
        }
        else if (token=="EE"||token=="E"){
            var names = (token=="EE"?Date.dayNames:Date.dayAbbreviations);
            for (var i=0; i<names.length; i++) {
                var day_name=names[i];
                if (val.substring(i_val,i_val+day_name.length).toLowerCase()==day_name.toLowerCase()) {
                    i_val += day_name.length;
                    break;
                }
            }
        }
        else if (token=="MM"||token=="M") {
            month=this.getInt(val,i_val,token.length,2);
            if(month==null||(month<1)||(month>12)){
                return null;
            }
            i_val+=month.length;
        }
        else if (token=="dd"||token=="d") {
            date=this.getInt(val,i_val,token.length,2);
            if(date==null||(date<1)||(date>31)){
                return null;
            }
            i_val+=date.length;
        }
        else if (token=="hh"||token=="h") {
            hh=this.getInt(val,i_val,token.length,2);
            if(hh==null||(hh<1)||(hh>12)){
                return null;
            }
            i_val+=hh.length;
        }
        else if (token=="HH"||token=="H") {
            hh=this.getInt(val,i_val,token.length,2);
            if(hh==null||(hh<0)||(hh>23)){
                return null;
            }
            i_val+=hh.length;
        }
        else if (token=="KK"||token=="K") {
            hh=this.getInt(val,i_val,token.length,2);
            if(hh==null||(hh<0)||(hh>11)){
                return null;
            }
            i_val+=hh.length;
            hh++;
        }
        else if (token=="kk"||token=="k") {
            hh=this.getInt(val,i_val,token.length,2);
            if(hh==null||(hh<1)||(hh>24)){
                return null;
            }
            i_val+=hh.length;
            hh--;
        }
        else if (token=="mm"||token=="m") {
            mm=this.getInt(val,i_val,token.length,2);
            if(mm==null||(mm<0)||(mm>59)){
                return null;
            }
            i_val+=mm.length;
        }
        else if (token=="ss"||token=="s") {
            ss=this.getInt(val,i_val,token.length,2);
            if(ss==null||(ss<0)||(ss>59)){
                return null;
            }
            i_val+=ss.length;
        }
        else if (token=="a") {
            if (val.substring(i_val,i_val+2).toLowerCase()=="am") {
                ampm="AM";
            }
            else if (val.substring(i_val,i_val+2).toLowerCase()=="pm") {
                ampm="PM";
            }
            else {
                return null;
            }
            i_val+=2;
        }
        else {
            if (val.substring(i_val,i_val+token.length)!=token) {
                return null;
            }
            else {
                i_val+=token.length;
            }
        }
    }
    // If there are any trailing characters left in the value, it doesn't match
    if (i_val != val.length) { 
        return null; 
    }
    // Is date valid for month?
    if (month==2) {
        // Check for leap year
        if ( ( (year%4==0)&&(year%100 != 0) ) || (year%400==0) ) { // leap year
            if (date > 29){ 
                return null; 
            }
        }
        else { 
        if (date > 28) { 
            return null; 
        } 
    }
}
    if ((month==4)||(month==6)||(month==9)||(month==11)) {
        if (date > 30) { 
            return null; 
        }
    }
    // Correct hours value
    if (hh<12 && ampm=="PM") {
        hh=hh-0+12; 
    }
    else if (hh>11 && ampm=="AM") { 
        hh-=12; 
    }
    return new Date(year,month-1,date,hh,mm,ss);
};

// Check if a date string is valid
Date.isValid = function(val,format) {
  return (Date.parseString(val,format) != null);
};

// Check if a date object is before another date object
Date.prototype.isBefore = function(date2) {
  if (date2==null) { 
    return false; 
  }
  return (this.getTime()<date2.getTime());
};

// Check if a date object is after another date object
Date.prototype.isAfter = function(date2) {
    if (date2==null) { 
        return false; 
    }
    return (this.getTime()>date2.getTime());
};

// Check if two date objects have equal dates and times
Date.prototype.equals = function(date2) {
    if (date2==null) { 
        return false; 
    }
    return (this.getTime()==date2.getTime());
};

// Check if two date objects have equal dates, disregarding times
Date.prototype.equalsIgnoreTime = function(date2) {
    if (date2==null) { 
        return false; 
    }
    var d1 = new Date(this.getTime()).clearTime();
    var d2 = new Date(date2.getTime()).clearTime();
    return (d1.getTime()==d2.getTime());
};

    // Format a date into a string using a given format string
    Date.prototype.format = function(format) {
    format=format+"";
    var result="";
    var i_format=0;
    var c="";
    var token="";
    var y=this.getYear()+"";
    var M=this.getMonth()+1;
    var d=this.getDate();
    var E=this.getDay();
    var H=this.getHours();
    var m=this.getMinutes();
    var s=this.getSeconds();
    var yyyy,yy,MMM,MM,dd,hh,h,mm,ss,ampm,HH,H,KK,K,kk,k;
    // Convert real date parts into formatted versions
    var value=new Object();
    if (y.length < 4) {
        y=""+(+y+1900);
    }
    value["y"]=""+y;
    value["yyyy"]=y;
    value["yy"]=y.substring(2,4);
    value["M"]=M;
    value["MM"]=Date.LZ(M);
    value["MMM"]=Date.monthNames[M-1];
    value["NNN"]=Date.monthAbbreviations[M-1];
    value["d"]=d;
    value["dd"]=Date.LZ(d);
    value["E"]=Date.dayAbbreviations[E];
    value["EE"]=Date.dayNames[E];
    value["H"]=H;
    value["HH"]=Date.LZ(H);
    if (H==0){
        value["h"]=12;
    }
    else if (H>12){
        value["h"]=H-12;
    }
    else {
        value["h"]=H;
    }
    value["hh"]=Date.LZ(value["h"]);
    value["K"]=value["h"]-1;
    value["k"]=value["H"]+1;
    value["KK"]=Date.LZ(value["K"]);
    value["kk"]=Date.LZ(value["k"]);
    if (H > 11) { 
        value["a"]="PM"; 
    }
    else { 
        value["a"]="AM"; 
    }
    value["m"]=m;
    value["mm"]=Date.LZ(m);
    value["s"]=s;
    value["ss"]=Date.LZ(s);
    while (i_format < format.length) {
        c=format.charAt(i_format);
        token="";
        while ((format.charAt(i_format)==c) && (i_format < format.length)) {
            token += format.charAt(i_format++);
        }
        if (typeof(value[token])!="undefined") { 
            result=result + value[token]; 
        }
        else { 
            result=result + token; 
        }
    }
    return result;
};

// Get the full name of the day for a date
Date.prototype.getDayName = function() { 
    return Date.dayNames[this.getDay()];
};

// Get the abbreviation of the day for a date
Date.prototype.getDayAbbreviation = function() { 
    return Date.dayAbbreviations[this.getDay()];
};

// Get the full name of the month for a date
Date.prototype.getMonthName = function() {
    return Date.monthNames[this.getMonth()];
};

// Get the abbreviation of the month for a date
Date.prototype.getMonthAbbreviation = function() { 
    return Date.monthAbbreviations[this.getMonth()];
};

// Clear all time information in a date object
Date.prototype.clearTime = function() {
    this.setHours(0); 
    this.setMinutes(0);
    this.setSeconds(0); 
    this.setMilliseconds(0);
    return this;
};

// Add an amount of time to a date. Negative numbers can be passed to subtract time.
Date.prototype.add = function(interval, number) {
    if (typeof(interval)=="undefined" || interval==null || typeof(number)=="undefined" || number==null) { 
        return this; 
    }
    number = +number;
    if (interval=='y') { // year
        this.setFullYear(this.getFullYear()+number);
    }
    else if (interval=='M') { // Month
        this.setMonth(this.getMonth()+number);
    }
    else if (interval=='d') { // Day
        this.setDate(this.getDate()+number);
    }
    else if (interval=='w') { // Weekday
        var step = (number>0)?1:-1;
        while (number!=0) {
            this.add('d',step);
            while(this.getDay()==0 || this.getDay()==6) { 
                this.add('d',step);
            }
            number -= step;
        }
    }
    else if (interval=='h') { // Hour
        this.setHours(this.getHours() + number);
    }
    else if (interval=='m') { // Minute
        this.setMinutes(this.getMinutes() + number);
    }
    else if (interval=='s') { // Second
        this.setSeconds(this.getSeconds() + number);
    }
      return this;
};