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 = "dmy" // 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 we weren't told what node to display the datepicker beneath, just display it
                // beneath the date field we're updating
                if (!displayBelowThisObject) 
                    displayBelowThisObject = targetDateField;
                
                // if a date separator character was given, update the dateSeparator variable
                if (dtSep) 
                    dateSeparator = dtSep;
                else 
                    dateSeparator = defaultDateSeparator;
                
                // if a date format was given, update the dateFormat variable
                if (dtFormat) 
                    dateFormat = dtFormat;
                else 
                    dateFormat = defaultDateFormat;
                
                var x = displayBelowThisObject.offsetLeft;
                var y = displayBelowThisObject.offsetTop + displayBelowThisObject.offsetHeight;
                
                // deal with elements inside tables and such
                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);
                
                // the datepicker table will be drawn inside of a <div> with an ID defined by the
                // global datePickerDivID variable. If such a div doesn't yet exist on the HTML
                // document we're working with, add one.
                if (!document.getElementById(datePickerDivID)) {
                    // don't use innerHTML to update the body, because it can cause global variables
                    // that are currently pointing to objects on the page to have bad references
                    //document.body.innerHTML += "<div id='" + datePickerDivID + "' class='dpDiv'></div>";
                    var newNode = document.createElement("div");
                    newNode.setAttribute("id", datePickerDivID);
                    newNode.setAttribute("class", "dpDiv");
                    newNode.setAttribute("style", "visibility: hidden;");
                    document.body.appendChild(newNode);
                }
                
                // move the datepicker div to the proper x,y coordinate and toggle the visiblity
                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){
                // if no arguments are passed, use today's date; otherwise, month and year
                // are required (if a day is passed, it will be highlighted later)
                var thisDay = new Date();
                
                if ((month >= 0) && (year > 0)) {
                    thisDay = new Date(year, month, 1);
                }
                else {
                    day = thisDay.getDate();
                    thisDay.setDate(1);
                }
                
                // the calendar will be drawn as a table
                // you can customize the table elements with a global CSS style sheet,
                // or by hardcoding style and formatting elements below
                var crlf = "\r\n";
                var TABLE = "<table bgcolor = '#FCF4E2' 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();
            }
            
            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 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();
                
                // after the datepicker has closed, optionally run a user-defined function called
                // datePickerClosed, passing the field that was just updated as a parameter
                // (note that this will only run if the user actually selected a date from the datepicker)
                if ((dateString) && (typeof(datePickerClosed) == "function")) 
                    datePickerClosed(targetDateField);
            }
            
            function adjustiFrame(pickerDiv, iFrameDiv){
                // we know that Opera doesn't like something about this, so if we
                // think we're using Opera, don't even try
                var is_opera = (navigator.userAgent.toLowerCase().indexOf("opera") != -1);
                if (is_opera) 
                    return;
                
                // put a try/catch block around the whole thing, just in case
                try {
                    if (!document.getElementById(iFrameDivID)) {
                        // don't use innerHTML to update the body, because it can cause global variables
                        // that are currently pointing to objects on the page to have bad references
                        //document.body.innerHTML += "<iframe id='" + iFrameDivID + "' src='javascript:false;' scrolling='no' frameborder='0'>";
                        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) {
                }
                
            }

			
// validate field
function validate_required(field,alerttxt)
{
with (field)
{
if (value==null||value=="")
  {alert(alerttxt);return false;}
else {return true}
}
}
    
// validate email  
function validate_email(field,alerttxt)
{
with (field)
{
apos=value.indexOf("@");
dotpos=value.lastIndexOf(".");
if (apos<1||dotpos-apos<2) 
  {alert(alerttxt);return false;}
else {return true;}
}
}
	
//check_submit	
function validate_form(thisform)
{
with (thisform)
{
if (validate_email(email,"Not a valid e-mail address!")==false)
  {email.focus();return false;}
if (validate_required(name,"Please enter your name!")==false)
  {name.focus();return false;}
if (validate_required(date_in,"Please enter check-in date!")==false)
  {date_in.focus();return false;}
if (validate_required(date_out,"Please enter check-out date!")==false)
  {date_out.focus();return false;}
}
}