function chkForm(){

    var name = document.getElementById('name');	 
	var email = document.getElementById('email');
    var tel = document.getElementById('tel');  
    var address = document.getElementById('address'); 
    var numRoom = document.getElementById('numRoom');
    var night = document.getElementById('night');    
	var day = document.getElementById('dayin');
	var month = document.getElementById('monthin');
	var year = document.getElementById('yearin');   
	var myDate=new Date();     
	myDate.setFullYear(parseInt(year.value),parseInt(month.value)-1,parseInt(day.value));

	var today = new Date();



	if(name.value == ""){

		alert('Please ,insert Name.');

		name.focus

		return false;	

	}
    if(address.value == "") {

            alert( "Please enter your Address." );

            address.focus();

            return false ;    

     }   
    if (email.value == "") {

                alert( "Please enter your email address." );

                email.focus();

                return false ;        

	}
     if (tel.value == "") {

                alert( "Please enter your telephone." );

                tel.focus();

                return false ;        

     }
    
       if (numRoom.value == 0) {

                alert( "Please enter your No of rooms." );

                numRoom.focus();

                return false ;        

     }  
     
    if (night.value == 0) {

                alert( "Please enter your No of night." );

                night.focus();

                return false ;        

     } 
            
	if(today > myDate){

		alert('Incorrect Date,Please check again.');

		return false;	

	}

	

	return true;



}



function checkRoom(c){

	try{

		if(document.all){

			if(document.all["typeR[]"].value == ""){

				alert('Please ,Choose type of Room.');

				return false;

			} 

			if (!document.all["typeB[]"].value == ""){

				alert('Please ,Choose type of Bed.');

				return false;

			}

			return true;

		}

	}catch(e){

		alert(e.description);

	}

}



function showDate(){

	

	var myDate = new Date();

	var thisday = myDate.format('d');

	var thismonth = myDate.format('m');

	var thisyear = myDate.format('yyyy');

	var dayin;

	var monthin;

	var yearin;

	var monthAll = new Array('', 'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec');

	

	// day

	dayin = "<select name=\"dayin\" size=\"1\" id=\"dayin\" onChange=\"showChkoutDate(form.night.value)\">";

	for (i=1;i<=31;i++){

	dayin += "<option value=" + i;

		if(i==thisday){

			dayin += " selected=\"selected\"";	

		}

	dayin += ">" + i + "</option>";

	}

	dayin += "</select>";

	

	//month

	monthin = "<select name=\"monthin\" size=\"1\" id=\"monthin\" onChange=\"showChkoutDate(form.night.value)\">";

	for (i=1;i<=12;i++){

	monthin += "<option value=" + i;

		if(i==thismonth){

			monthin += " selected=\"selected\"";	

		}

	monthin += ">" + monthAll[i] + "</option>";

	}

	monthin += "</select>";

	

	//year

	yearin = "<select name=\"yearin\" size=\"1\" id=\"yearin\" onChange=\"showChkoutDate(form.night.value)\">";

	for (i=0;i<=2;i++){

		yearin += "<option value=" + thisyear;

		yearin += ">" + thisyear + "</option>";

		thisyear++;

	}

	yearin += "</select>";

	

	document.getElementById('day').innerHTML = dayin;

	document.getElementById('month').innerHTML = monthin;

	document.getElementById('year').innerHTML = yearin;

}



function showChkoutDate(num){

  	var myDate = new Date();

	var day = document.getElementById('dayin');

	var month = document.getElementById('monthin');

	var year = document.getElementById('yearin');

	myDate.setYear(parseInt(year.value));

	myDate.setMonth(parseInt(month.value-1));

	myDate.setDate(parseInt(day.value)+parseInt(num));

	var chkout = myDate.format('d mmmm yyyy');

	document.getElementById('chkout').innerHTML = chkout;

}



// date format



// Simulates PHP's date function

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 && (typeof date == "string" || date instanceof 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 new 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);

};