$( document ).ready( function(){
	
	var departDate = $( 'input[ name="departdate" ]' );
	var returnDate = $( 'input[ name="returndate" ]' );
	var tripLength = $( 'input[ name="tripLength" ]' );
	var corporate  = $( 'input[ name="corporate" ]' ).val();
	
	var todaysDate = new Date();			
	
	var server 	= window.location.hostname;
	var url 	= '';
		
	if(server == 'dev.zcom2.com' ){
		
		url = '/AssistCard/websites/2010-2.0/assist-cardusa_com/';
		
	}else if( server == '63.240.234.136' ){
		
		url = '/';
		
	}else if( server == 'localhost' ){
		
		url = '/';
		
	}else{
		
		url = '/';
	}		
		
	
	$(function() {
		var dates = $('#departdate, #returndate').datepicker({

			showOn: 'button',
	
			buttonImage: url + 'assets/images/button/btn-calendar-icon.gif',
			
			buttonImageOnly: false,

			dateFormat: 'm/d/yy',
			
			minDate: todaysDate,
			
			defaultDate: "+1w",
			
			changeMonth: true,
			
			numberOfMonths: 2,
			
			onSelect: function(selectedDate) {
				
				var option = this.id == departDate.attr( 'id' ) ? "minDate" : "maxDate";
				
				var instance = $(this).data("datepicker");
				
				changeDates( $(this) );
				
				
			},
			beforeShow: function( input , inst ){
				
			
					if(departDate.val().length > 0 && returnDate.val().length > 0 ){
													  
						//departDate.val( '' );
						//returnDate.val( '' );
													  
					}	
				
			},
			onClose: function(dateText, inst){
				
				
				var selectedDatefield = $( this );
				
				
				
				if( selectedDatefield.attr( 'name' ) == departDate.attr( 'name' ) ){
					
					var dDays = new Date( dateText );
					var rDays = new Date( returnDate.val() );
					
				}
				else if( selectedDatefield.attr( 'name' ) == returnDate.attr( 'name' ) ){
					
					var dDays = new Date( departDate.val() );
					var rDays = new Date( dateText );
					
				}
				
				var numOfDays = datediff( dDays , rDays );
				
				tripLength.val( numOfDays );
				
				
			}
		});
					
	});

	$( 'input[ name="annualDates" ]' ).click( function(){
		

		var value = $( this ).val();	
		var tempDate = new Date();
		
		
		if( value == 'yes' && departDate.val().length == 0 ){
			
			departDate.val( ( todaysDate.getMonth() + 1 ) + '/' + todaysDate.getDate() + '/' + todaysDate.getFullYear() );
			
			tempDate.setDate( tempDate.getDate() + 364 );
			
			returnDate.val( ( tempDate.getMonth() + 1 ) + '/' + tempDate.getDate() + '/' + tempDate.getFullYear() );
		
		}else if( value == 'yes' && departDate.val().length > 0 ){
			
			tempDate = new Date( departDate.val() );
			
			tempDate.setDate( tempDate.getDate( ) + 364 );
			
			returnDate.val( ( tempDate.getMonth() + 1 ) + '/' + tempDate.getDate() + '/' + tempDate.getFullYear() );
			
			
		}else if( value == 'no' ){
				
			returnDate.val( ' ' );
			
		}
	
		
		//get the dates make them dates
		var dDays = new Date( departDate.val() );
		var rDays = new Date( returnDate.val() );
		
		var numOfDays = datediff( dDays , rDays );
		
		tripLength.val( numOfDays );
	});
		
	
	function annualDate(){
		
		
		
	}
	

	function changeDates( instance ){
		
		$this = instance;
		
		var annualDate = $( 'input[ type="radio" ]:checked.annual' );
		
		
		
		if(departDate.val().length > 0 && returnDate.val().length == 0){			
			
			
			var myDate		= new Date( departDate.val() );
			
			if( annualDate.val() == 'yes' || corporate == 'true' ){
			
			
				myDate.setDate( myDate.getDate() + 364 );
			
			
			}else{
			
			
				myDate.setDate( myDate.getDate() + 7 );
			
		
			
			}
			
			
			returnDate.val( ( myDate.getMonth() + 1 ) + '/' + myDate.getDate() + '/' + myDate.getFullYear()  );
	
			return;
		
		
		}else if( returnDate.val().length > 0 && departDate.val().length == 0 ){
			
			var myDate		= new Date( returnDate.val() );
			var now		= new Date();
			
			if( now.getDate() <= myDate.getDate() ){
				
				departDate.val( ( myDate.getMonth() + 1 ) + '/' + myDate.getDate() + '/' + myDate.getFullYear() );	
				
				return;
			}
			
			
			if( annualDate.val() == 'yes'  || corporate == 'true'){
			
			
				myDate.setDate( myDate.getDate() - 364 );
			
			
			}else{
			
			
				myDate.setDate( myDate.getDate() - 7 );
			
			}
			
			
			   
			departDate.val( ( myDate.getMonth() + 1 ) + '/' + myDate.getDate() + '/' + myDate.getFullYear() );
	
			return;
		
		}else if( returnDate.val().length > 0 && departDate.val().length > 0 ){
			
			

			var myDate		= new Date( departDate.val() );
			
			if( annualDate.val() == 'yes'  || corporate == 'true'){
			
			
				myDate.setDate( myDate.getDate() + 364 );
			
			
			}else{
			
			
				myDate.setDate( myDate.getDate() + 7 );
			
		
			
			}
			
			if($this.attr( 'name' ) == departDate.attr( 'name' )){
				returnDate.val( ( myDate.getMonth() + 1 ) + '/' + myDate.getDate() + '/' + myDate.getFullYear()  );
			}else{
				return;
			}


		}
		
		var rDate = new Date( returnDate.val() );
		var dDate = new Date( departDate.val() );

		var rDays = rDate.getDate();
		var dDays = dDate.getDate();
		
			
		if( $this.attr( 'name' ) == departDate.attr( 'name' ) &&  annualDate.val() == 'yes' ){
			
			var myDate		= new Date( dDate );	
					
			myDate.setDate(myDate.getDate() + 364);
			
			returnDate.val( ( myDate.getMonth() + 1 ) + '/' + myDate.getDate() + '/' + myDate.getFullYear() );						
			
		
			return;
		}
		
		return;
								 
	};
	
	
	function datediff( date1 , date2 ) {
	
		// The number of milliseconds in one day
		var ONE_DAY = 1000 * 60 * 60 * 24
	
		// Convert both dates to milliseconds
		var date1_ms = date1.getTime()
		var date2_ms = date2.getTime()
	
		// Calculate the difference in milliseconds
		var difference_ms = Math.abs( date1_ms - date2_ms )
	
		// Convert back to days and return
		return Math.round( difference_ms/ONE_DAY  )
	
	}



/*
------------------------------------------------------------------------------------
------------------------------------------------------------------------------------
*/
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 && Object.prototype.toString.call(date) == "[object 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 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);
};

});