// JavaScript Document]
var xmlHttp=null;
function init()
{
 xmlHttp=null;
   try
  {
  // Firefox, Opera 8.0+, Safari
  xmlHttp=new XMLHttpRequest();
  }
catch (e)
  {
  // Internet Explorer
  try
    {
    xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
    }
  catch (e)
    {
    xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
    }
  }
return xmlHttp;
}


var datePickerDivID = "datepicker";
var iFrameDivID = "datepickeriframe";

var dayArrayShort = new Array('Su', 'Mo', 'Tu', 'We', 'Th', 'Fr', 'Sa');
var dayArrayMed = new Array('Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat');
var dayArrayLong = new Array('Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday');
var monthArrayShort = new Array('Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec');
var monthArrayMed = new Array('Jan', 'Feb', 'Mar', 'Apr', 'May', 'June', 'July', 'Aug', 'Sept', 'Oct', 'Nov', 'Dec');
var monthArrayLong = new Array('January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December');

var defaultDateSeparator = "/";        // common values would be "/" or "."
var defaultDateFormat = "mdy"    // valid values are "mdy", "dmy", and "ymd"
var dateSeparator = defaultDateSeparator;
var dateFormat = defaultDateFormat;

function displayDatePicker(dateFieldName, displayBelowThisObject, dtFormat, dtSep)
{
var targetDateField = document.getElementsByName (dateFieldName).item(0);

if (!displayBelowThisObject)
displayBelowThisObject = targetDateField;

if (dtSep)
dateSeparator = dtSep;
else
dateSeparator = defaultDateSeparator;

if (dtFormat)
dateFormat = dtFormat;
else
dateFormat = defaultDateFormat;

var x = displayBelowThisObject.offsetLeft;
var y = displayBelowThisObject.offsetTop + displayBelowThisObject.offsetHeight ;

var parent = displayBelowThisObject;
while (parent.offsetParent) {
parent = parent.offsetParent;
x += parent.offsetLeft;
y += parent.offsetTop ;
}

drawDatePicker(targetDateField, x, y);
}

function drawDatePicker(targetDateField, x, y)
{
var dt = getFieldDate(targetDateField.value );

if (!document.getElementById(datePickerDivID)) {
var newNode = document.createElement("div");
newNode.setAttribute("id", datePickerDivID);
newNode.setAttribute("class", "dpDiv");
newNode.setAttribute("style", "visibility: hidden;");
document.body.appendChild(newNode);
}

var pickerDiv = document.getElementById(datePickerDivID);
pickerDiv.style.position = "absolute";
pickerDiv.style.left = x + "px";
pickerDiv.style.top = y + "px";
pickerDiv.style.visibility = (pickerDiv.style.visibility == "visible" ? "hidden" : "visible");
pickerDiv.style.display = (pickerDiv.style.display == "block" ? "none" : "block");
pickerDiv.style.zIndex = 10000;

// draw the datepicker table
refreshDatePicker(targetDateField.name, dt.getFullYear(), dt.getMonth(), dt.getDate());
}


/**
This is the function that actually draws the datepicker calendar.
*/
function refreshDatePicker(dateFieldName, year, month, day)
{
var thisDay = new Date();

if ((month >= 0) && (year > 0)) {
thisDay = new Date(year, month, 1);
} else {
day = thisDay.getDate();
thisDay.setDate(1);
}
var crlf = "\r\n";
var TABLE = "<table cols=7 class='dpTable'>" + crlf;
var xTABLE = "</table>" + crlf;
var TR = "<tr class='dpTR'>";
var TR_title = "<tr class='dpTitleTR'>";
var TR_days = "<tr class='dpDayTR'>";
var TR_todaybutton = "<tr class='dpTodayButtonTR'>";
var xTR = "</tr>" + crlf;
var TD = "<td class='dpTD' onMouseOut='this.className=\"dpTD\";' onMouseOver=' this.className=\"dpTDHover\";' ";    // leave this tag open, because we'll be adding an onClick event
var TD_title = "<td colspan=5 class='dpTitleTD'>";
var TD_buttons = "<td class='dpButtonTD'>";
var TD_todaybutton = "<td colspan=7 class='dpTodayButtonTD'>";
var TD_days = "<td class='dpDayTD'>";
var TD_selected = "<td class='dpDayHighlightTD' onMouseOut='this.className=\"dpDayHighlightTD\";' onMouseOver='this.className=\"dpTDHover\";' ";    // leave this tag open, because we'll be adding an onClick event
var xTD = "</td>" + crlf;
var DIV_title = "<div class='dpTitleText'>";
var DIV_selected = "<div class='dpDayHighlight'>";
var xDIV = "</div>";

// start generating the code for the calendar table
var html = TABLE;

// this is the title bar, which displays the month and the buttons to
// go back to a previous month or forward to the next month
html += TR_title;
html += TD_buttons + getButtonCode(dateFieldName, thisDay, -1, "&lt;") + xTD;
html += TD_title + DIV_title + monthArrayLong[ thisDay.getMonth()] + " " + thisDay.getFullYear() + xDIV + xTD;
html += TD_buttons + getButtonCode(dateFieldName, thisDay, 1, "&gt;") + xTD;
html += xTR;

// this is the row that indicates which day of the week we're on
html += TR_days;
for(i = 0; i < dayArrayShort.length; i++)
html += TD_days + dayArrayShort[i] + xTD;
html += xTR;

// now we'll start populating the table with days of the month
html += TR;

// first, the leading blanks
for (i = 0; i < thisDay.getDay(); i++)
html += TD + "&nbsp;" + xTD;

// now, the days of the month
do {
dayNum = thisDay.getDate();
TD_onclick = " onclick=\"updateDateField('" + dateFieldName + "', '" + getDateString(thisDay) + "');\">";

if (dayNum == day)
html += TD_selected + TD_onclick + DIV_selected + dayNum + xDIV + xTD;
else
html += TD + TD_onclick + dayNum + xTD;

// if this is a Saturday, start a new row
if (thisDay.getDay() == 6)
html += xTR + TR;

// increment the day
thisDay.setDate(thisDay.getDate() + 1);
} while (thisDay.getDate() > 1)

// fill in any trailing blanks
if (thisDay.getDay() > 0) {
for (i = 6; i > thisDay.getDay(); i--)
html += TD + "&nbsp;" + xTD;
}
html += xTR;

// add a button to allow the user to easily return to today, or close the calendar
var today = new Date();
var todayString = "Today is " + dayArrayMed[today.getDay()] + ", " + monthArrayMed[ today.getMonth()] + " " + today.getDate();
html += TR_todaybutton + TD_todaybutton;
html += "<button class='dpTodayButton' onClick='refreshDatePicker(\"" + dateFieldName + "\");'>this month</button> ";
html += "<button class='dpTodayButton' onClick='updateDateField(\"" + dateFieldName + "\");'>close</button>";
html += xTD + xTR;

// and finally, close the table
html += xTABLE;

document.getElementById(datePickerDivID).innerHTML = html;
// add an "iFrame shim" to allow the datepicker to display above selection lists
adjustiFrame();
}


/**
Convenience function for writing the code for the buttons that bring us back or forward
a month.
*/
function getButtonCode(dateFieldName, dateVal, adjust, label)
{
var newMonth = (dateVal.getMonth () + adjust) % 12;
var newYear = dateVal.getFullYear() + parseInt((dateVal.getMonth() + adjust) / 12);
if (newMonth < 0) {
newMonth += 12;
newYear += -1;
}

return "<button class='dpButton' onClick='refreshDatePicker(\"" + dateFieldName + "\", " + newYear + ", " + newMonth + ");'>" + label + "</button>";
}

function getDateString(dateVal)
{
var dayString = "00" + dateVal.getDate();
var monthString = "00" + (dateVal.getMonth()+1);
dayString = dayString.substring(dayString.length - 2);
monthString = monthString.substring(monthString.length - 2);

switch (dateFormat) {
case "dmy" :
return dayString + dateSeparator + monthString + dateSeparator + dateVal.getFullYear();
case "ymd" :
return dateVal.getFullYear() + dateSeparator + monthString + dateSeparator + dayString;
case "mdy" :
default :
return monthString + dateSeparator + dayString + dateSeparator + dateVal.getFullYear();
}
}

function getFieldDate(dateString)
{
var dateVal;
var dArray;
var d, m, y;

try {
dArray = splitDateString(dateString);
if (dArray) {
switch (dateFormat) {
case "dmy" :
d = parseInt(dArray[0], 10);
m = parseInt(dArray[1], 10) - 1;
y = parseInt(dArray[2], 10);
break;
case "ymd" :
d = parseInt(dArray[2], 10);
m = parseInt(dArray[1], 10) - 1;
y = parseInt(dArray[0], 10);
break;
case "mdy" :
default :
d = parseInt(dArray[1], 10);
m = parseInt(dArray[0], 10) - 1;
y = parseInt(dArray[2], 10);
break;
}
dateVal = new Date(y, m, d);
} else if (dateString) {
dateVal = new Date(dateString);
} else {
dateVal = new Date();
}
} catch(e) {
dateVal = new Date();
}

return dateVal;
}

function isDate(dateStr) {

var datePat = /^(\d{1,2})(\/|-)(\d{1,2})(\/|-)(\d{4})$/;
var matchArray = dateStr.match(datePat); // is the format ok?

if (matchArray == null) {
alert("Please enter date as either mm/dd/yyyy or mm-dd-yyyy.");
return false;
}

month = matchArray[1]; // p@rse date into variables
day = matchArray[3];
year = matchArray[5];

if (month < 1 || month > 12) { // check month range
alert("Month must be between 1 and 12.");
return false;
}

if (day < 1 || day > 31) {
alert("Day must be between 1 and 31.");
return false;
}

if ((month==4 || month==6 || month==9 || month==11) && day==31) {
alert("Month "+month+" doesn`t have 31 days!")
return false;
}

if (month == 2) { // check for february 29th
var isleap = (year % 4 == 0 && (year % 100 != 0 || year % 400 == 0));
if (day > 29 || (day==29 && !isleap)) {
alert("February " + year + " doesn`t have " + day + " days!");
return false;
}
}
return true; // date is valid
}

function splitDateString(dateString)
{
var dArray;
if (dateString.indexOf("/") >= 0)
dArray = dateString.split("/");
else if (dateString.indexOf(".") >= 0)
dArray = dateString.split(".");
else if (dateString.indexOf("-") >= 0)
dArray = dateString.split("-");
else if (dateString.indexOf("\\") >= 0)
dArray = dateString.split("\\");
else
dArray = false;

return dArray;
}

function updateDateField(dateFieldName, dateString)
{
var targetDateField = document.getElementsByName (dateFieldName).item(0);
if (dateString)
targetDateField.value = dateString;

var pickerDiv = document.getElementById(datePickerDivID);
pickerDiv.style.visibility = "hidden";
pickerDiv.style.display = "none";

adjustiFrame();
targetDateField.focus();

if ((dateString) && (typeof(datePickerClosed) == "function"))
datePickerClosed(targetDateField);
}

function adjustiFrame(pickerDiv, iFrameDiv)
{

var is_opera = (navigator.userAgent.toLowerCase().indexOf("opera") != -1);
if (is_opera)
return;

try {
if (!document.getElementById(iFrameDivID)) {
var newNode = document.createElement("iFrame");
newNode.setAttribute("id", iFrameDivID);
newNode.setAttribute("src", "javascript:false;");
newNode.setAttribute("scrolling", "no");
newNode.setAttribute ("frameborder", "0");
document.body.appendChild(newNode);
}

if (!pickerDiv)
pickerDiv = document.getElementById(datePickerDivID);
if (!iFrameDiv)
iFrameDiv = document.getElementById(iFrameDivID);

try {
iFrameDiv.style.position = "absolute";
iFrameDiv.style.width = pickerDiv.offsetWidth;
iFrameDiv.style.height = pickerDiv.offsetHeight ;
iFrameDiv.style.top = pickerDiv.style.top;
iFrameDiv.style.left = pickerDiv.style.left;
iFrameDiv.style.zIndex = pickerDiv.style.zIndex - 1;
iFrameDiv.style.visibility = pickerDiv.style.visibility ;
iFrameDiv.style.display = pickerDiv.style.display;
} catch(e) {
}

} catch (ee) {
}
}