// Define global Variables

newWindow = '';
popupCalendar = '';

if (!opener)
{
  userInfo = Get_Cookie('userinfo');
  if (userInfo) {
          userInfo = userInfo.split('&');
          userName = userInfo[0];
          userType = userInfo[1];
          }
}

var today = new Date();
var day   = today.getDate();
var month = today.getMonth();
var year  = y2k(today.getYear());
var monthNames = new Array('January','February','March','April','May','June','July','August','September','October','November','December');
var monthDays = new Array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
var dow = new Array('Sun','Mon','Tue','Wed','Thu','Fri','Sat');
useMonth = month;
useYear = year;

var serverParts = location.href.split('/');
//alert(serverParts);
var thisServer = serverParts[0] + '\/\/' + serverParts[2] + '/';
if (serverParts[3]=='vapahcs')
{
  thisServer = thisServer + 'vapahcs/';
}
//thisServer = thisServer;
document.write('<base href="' + thisServer + '">\n');

// Browser/OS Detect
var detect = navigator.userAgent.toLowerCase();
var mac = (detect.indexOf("mac") !=-1);
var xplore = (detect.indexOf("msie") !=-1);
var num = navigator.appVersion.charAt(0);

// Check for DHTML support
//if (document.all || document.layers)
//        document.dhtml = true;
//else
//        location.href = "index_3.html";

// Use Correct Stylesheet based on OS/Browser
if (xplore && (!mac))
        stylesheet = "stylesheet_ie.css";
else if (mac)
        stylesheet = "stylesheet_mac.css";
else
        stylesheet = "stylesheet_nn.css";

// Only one style sheet, so hard-code file name here
stylesheet = "stylesheet_all.css";

// Write Style Sheet and other JavaScript references

document.write('<link rel="STYLESHEET" type="text/css" href="' + thisServer + 'css/' + stylesheet + '">');
//document.write('<script language="JavaScript" src="' + thisServer + 'js/dropnav.js"></script>');
document.write('<script language="JavaScript" src="' + thisServer + 'js/va_validation.js"></script>');
document.write('<script language="JavaScript" src="' + thisServer + 'js/FormChek.js"></script>');
document.write('<script language="JavaScript" src="' + thisServer + 'js/utils.js"></script>');

// Check for popup window
if (document.all || document.layers || document.dhtml) {
        if (document.layers) document.captureEvents(Event.MOUSEUP)
        document.onmouseup = checkPopup;
} else {
        event = null;
}

// Set IE and Netscape specific DHTML variables
if (document.layers)
        doc = 'document.layers[', vis = '].visibility', top = '].top', left
= '].left', height = '].document.height', trueTop = '].pageY';
if (document.all)
        var doc = 'document.all[', vis = '].style.visibility', top =
'].style.posTop', left = '].style.posLeft', height = '].offsetHeight',
trueTop = '].offsetTop';
if (document.getElementById)
                var doc = 'document.getElementById(', vis = ').style.visibility', top =
').style.top', left = ').style.left', height = ').offsetHeight';


/*
if (document.layers)
        doc = 'document.layers.', vis = '.visibility', top = '.top', height = '.document.height', trueTop = '.pageY';
if (document.all)
        var doc = 'document.all.', vis = '.style.visibility', top = '.style.posTop', height = '.offsetHeight', trueTop = '.offsetTop';
if (document.getElementById)
                var doc = 'document.getElementById(', vis = ').style.visibility', top = ').style.top', left = ').style.left', height = ').offsetHeight';
*/

// FUNCTIONS //

// Common graphic mouse-over routines
function imageOver(imageItem,subdir) {
                fileformat = ".gif";
                document[imageItem].src = thisServer + subdir + imageItem + '_2' + fileformat;
                document.swapImage = imageItem;
                saveSubdir = subdir;
        }

function imageOut() {
        if(document.swapImage) {
                fileformat = ".gif";
                imageItem = document.swapImage;
                document[imageItem].src = thisServer + saveSubdir + imageItem + fileformat;
                }
        }

// Open Popup Window, where URL is file to open, x is width and y is height
function openWindow(url,x,y) {
    if (url.indexOf("http://")==-1 && url.indexOf("https://")==-1)
      url = thisServer + url;

  var rnd = Math.random()*1000000 + '=1';
  if (String(url).indexOf('?') != -1)
    url+='&' + rnd;
  else
    url+='?' + rnd;
    //alert("Opening " + url);
                newWindow=open(url,'newWindow','menubar=no,scrollbars=yes,status=yes,resizable=yes,location=no,width=' + x + ',height=' + y);
                if (newWindow.opener == null) newWindow.opener = self;
                newWindow.focus();
        }

function openMenuWindow(url,x,y) {
    if (url.indexOf("http://")==-1 && url.indexOf("https://")==-1)
      url = thisServer + url;

  var rnd = Math.random()*1000000 + '=1';
  if (String(url).indexOf('?') != -1)
    url+='&' + rnd;
  else
    url+='?' + rnd;

                newWindow=open(url,'newWindow','toolbar=yes,menubar=yes,scrollbars=yes,status=yes,resizable=yes,location=no,width=' + x + ',height=' + y);
                if (newWindow.opener == null) newWindow.opener = self;
                newWindow.focus();
        }


// Open Popup Window, special Funding Source listing, where URL is file to open, x is width and y is height, field is field to fill in, fieldnum is number in list
function selectWindow(url,x,y,field,fieldnum,formname) {
    if (url.indexOf("http://")==-1 && url.indexOf("https://")==-1)
      url = thisServer + url + '?' + field + '&' + fieldnum + '&' + formname;

  var rnd = Math.random()*1000000 + '=1';
  if (String(url).indexOf('?') != -1)
    url+='&' + rnd;
  else
    url+='?' + rnd;

                newWindow=open(url,'newWindow','menubar=no,scrollbars=yes,status=yes,resizable=no,location=no,width=' + x + ',height=' + y);
                newWindow.focus();
        }

// Open Information Popup Window
function openInfoWindow(infoNum) {
                url = thisServer + 'templates/popup_info.html?' + infoNum;
           //     alert ("URL: "+url);
                newWindow=open(url,'newWindow','menubar=no,scrollbars=yes,status=yes,resizable=no,location=no,width=450,height=250');
                if (newWindow.opener == null) newWindow.opener = self;
                newWindow.focus();
        }

// Checks to see if a popup window is open, forces focus on popup
function checkPopup() {
if (newWindow && !newWindow.closed) {
                alert('Please close popup window before continuing');
                newWindow.focus();
                }
if (popupCalendar && !popupCalendar.closed) {
                alert('Please close calendar window before continuing');
                popupCalendar.focus();
                }
        }

// Returns current date
function printDate() {

        var time = new Date();
        timezoneoffset = time.getTimezoneOffset();
        if ((navigator.appVersion.indexOf('MSIE 3') != -1)) timezoneoffset = timezoneoffset * (-1);
        time.setTime(time.getTime() + timezoneoffset*60*1000);
        time.setTime(time.getTime() + -8*60*60*1000);

        time.setHours(time.getHours() + 1);

        var monthNum = time.getMonth();
        var hours = time.getHours(), minutes = padout(time.getMinutes());
        var year = time.getYear(), month = monthNames[monthNum], day = time.getDate(), dowName = dow[time.getDay()];
        // Long Date
        //document.write(dowName + ', ' + month + ' ' + day + ', ' + year + ', ' + hours + ':' + minutes);
                formattedDate = padout(monthNum+1) + '/' + padout(day) + '/' + year;
                return formattedDate;
        }

// Redirects to URL
function changeURL(thisURL) {
                confirmation = confirm('The page you are about to go to is not part of the VA Palo Alto Health Care System,\nand is thus not responsible for its contents.\n\nContinue?');
        if (confirmation)
            location.href = thisServer + thisURL;
        }

// Unhides a layer specified by thisLayer. IE only.
function showSingleLayer(thisLayer) {
        if (document.dhtml) {
                // Show Popup Layer
                if (document.layers)
                        {//document.layers[thisLayer].visibility = 'visible';
                        }
                else if (document.all)
                        document.all[thisLayer].style.visibility = 'visible';
                }
        }

// Hides a layer specified by thisLayer. IE only.
function hideSingleLayer(thisLayer) {
        if (document.dhtml) {
                // Hide Popup Layer
                if (document.layers)
                        {//document.layers[thisLayer].visibility = 'hidden';
                        }
                else if (document.all)
                        document.all[thisLayer].style.visibility = 'hidden';
                }
        }



function padout(number) { return (number < 10) ? '0' + number : number; }
function padout100(number) { return (number < 10) ? '00' + number : (number < 100) ? '0' + number : number; }


// Pop-up Calendar Functions
function y2k(number)    { return (number < 1000) ? number + 1900 : number; }

function newCalendar(thisField,thisForm) {
        useThisField = thisField;
        useThisForm = thisForm;
        calendarURL = thisServer + 'calendar.html';
        //alert(calendarURL);
        popupCalendar=open(calendarURL,'popupCalendar','status=no,resizable=no,width=235,height=250');
        popupCalendar.focus();
//        popupCalendar.location.href = calendarURL;
//        popupCalendar.location.reload();
        if (popupCalendar.opener == null) popupCalendar.opener = self;
        }


// Cookie Functions
function Get_Cookie(vName) {
    if (document.cookie.length > 0)
    {
      var start = document.cookie.indexOf(vName+"=");
      var len = start+vName.length+1;
      if ((!start) && (vName != document.cookie.substring(0,vName.length))) return null;
      if (start == -1) return null;
      var end = document.cookie.indexOf(";",len);
      if (end == -1) end = document.cookie.length;
      return unescape(document.cookie.substring(len,end));
    }
    return null;
}

function Set_Cookie(vName,vValue,expires,path,domain,secure) {
    document.cookie = vName + "=" +escape(vValue) +
        ( (expires) ? ";expires=" + expires.toGMTString() : "") +
        ( (path) ? ";path=" + path : "") +
        ( (domain) ? ";domain=" + domain : "") +
        ( (secure) ? ";secure" : "");
}

function Delete_Cookie(vName,path,domain) {
    if (Get_Cookie(vName)) document.cookie = vName + "=" +
        ( (path) ? ";path=" + path : "") +
        ( (domain) ? ";domain=" + domain : "") +
        ";expires=Thu, 01-Jan-70 00:00:01 GMT";
}

function addYears(form,formField1,formField2,amount) {
        dateString = eval('document.' + form + '.' + formField1 + '.value');
        year = dateString.substring(6,10);
        month = dateString.substring(0,2);
        day = dateString.substring(3,5);
        nextYear = new Date(((year - 0)+(amount-0)),month-1,day);
        var d  = nextYear.getDate();
        var day = (d < 10) ? '0' + d : d;
        var m = nextYear.getMonth() + 1;
        var month = (m < 10) ? '0' + m : m;
        var yy = nextYear.getYear();
        var year = (yy < 1000) ? yy + 1900 : yy;

        expireDate = month + '/' + day + '/' + year;
        if (dateString)
                eval('document.' + form + '.' + formField2 + '.value = expireDate');
}

function addMonths(form,formField1,formField2,amount) {
        dateString = eval('document.' + form + '.' + formField1 + '.value');
        year = dateString.substring(6,10);
        month = dateString.substring(0,2);
        day = dateString.substring(3,5);
        newMonth = ((month - 1)+(amount-0))
        nextMonth = new Date(year,newMonth,day);
        var d  = nextMonth.getDate();
        var day = (d < 10) ? '0' + d : d;
        var m = nextMonth.getMonth() + 1;
        var month = (m < 10) ? '0' + m : m;
        var yy = nextMonth.getYear();
        var year = (yy < 1000) ? yy + 1900 : yy;

        expireDate = month + '/' + day + '/' + year;
        if (dateString)
                eval('document.' + form + '.' + formField2 + '.value = expireDate');
}

// Sets price strings to .00 format
function setDecimals(cost) {
    cost = (Math.round(cost*100))/100;
    return (cost == Math.floor(cost)) ? cost + '.00' : (  (cost*10 == Math.floor(cost*10)) ? cost + '0' : cost);
}

// Check valid field formats. Works with FormChek.js
function checkField(thisField,formName,labelString) {

    valueGood = 1;
    fieldObject = eval('document.' + formName + '[thisField]');

    if (thisField.indexOf('PHONE') > -1 || thisField.indexOf('FAX') > -1) {
        digits = eval('document.' + formName + '["' + thisField + '"].value');
        if (digits.length == 5) {
            // Using 5 digit extension, check for just numbers
            valueGood = isInteger(digits, fieldObject);
        } else {
            valueGood = checkUSPhone(fieldObject);
        }
    }

    if (thisField.indexOf('EMAIL') > -1) {
        valueGood = checkEmail(fieldObject);
    }

    if (thisField.indexOf('SSN') > -1) {
        valueGood = checkSSN(fieldObject);
    }

    if (thisField.indexOf('SOC_SEC_NUMBER') > -1) {
        valueGood = checkSSN(fieldObject);
    }

    if (thisField.indexOf('ZIP') > -1) {
        valueGood = checkZIPCode(fieldObject);
    }

    // checks for valid date and format mm/dd/yyyy
    if (thisField.indexOf('DATE') > -1) {

        date = eval('document.' + formName + '.' + thisField + '.value');
        if (date.length == 10) {
            year = date.substring(6,10);
            month = date.substring(0,2);
            day = date.substring(3,5);
            valueGood = isValidDate(year,month,day,labelString);
        } else {
            alert('Dates must be in MM/DD/YYYY format (ie, 03/12/2006). Please re-enter or use calendar pop-up.');
            return false;
        }
    }

    return valueGood;
}


function isValidDate (yearField, monthField, dayField, labelString) {

    valueGood = 1;
    alertString = "The date for " + labelString + " is not valid. Please re-enter or use calendar pop-up.";

    // Next line is needed on NN3 to avoid "undefined is not a number" error
    // in equality comparison below.

    if (!isYear(yearField) || !isMonth(monthField) || !isDay(dayField)) {
        valueGood = 0;
    }

    if (!isDate(yearField, monthField, dayField)) {
        valueGood = 0;
    }

    if ((+yearField) < 1900) {
        valueGood = 0;
    }

    if (valueGood) {
        return true;
    } else {
        alert (alertString);
        return false;
    }
}


//Shows difference of days between date1 and date2
function compareDays(date1,date2) {
        year1 = date1.substring(6,10);
        month1 = date1.substring(0,2);
        day1 = date1.substring(3,5);

        year2 = date2.substring(6,10);
        month2 = date2.substring(0,2);
        day2 = date2.substring(3,5);

        date1 = new Date(year1,(month1-1),day1);
        date2 = new Date(year2,(month2-1),day2);
    var difference =
        Date.UTC(y2k(date1.getYear()),date1.getMonth(),date1.getDate(),0,0,0)
      - Date.UTC(y2k(date2.getYear()),date2.getMonth(),date2.getDate(),0,0,0);
    return difference/1000/60/60/24;
}

// checks for valid date and format mm/dd/yyyy


// Added by Naresh
function setUpSelect(fld,vl){
  if ((eval("document."+fld))&&(vl != ""))
  {
    var ln = eval("document."+fld+".options.length");
    for(var i=0;i<ln;i++){
    var tt = eval("document."+fld+".options[i].value");
      if (eval("document."+fld+".options[i].value")==vl){
        eval("document."+fld+".options[i].selected = true;");
        break;
      }
    }
  }
}