function dateStatusIn(date) {
		var minDate = new Date();
		minDate.setDate(minDate.getDate()-1);
		if (date.getTime() < minDate.getTime())
		{
			return true; // true says "disable"
		} else {
			return false; // leave other dates enabled
		}
	}
	
	function dateStatusOut(date) {
		var minDate = new Date();
		if (date.getTime() < minDate.getTime())
		{
			return true; // true says "disable"
		} else {
			return false; // leave other dates enabled
		}
	}
	
	function gotoBooking() {
		var date_in = document.getElementById('date_in').value;		
		var date_out = document.getElementById('date_out').value;		
		var num_rooms = document.getElementById('num_rooms').value;		
		var num_adults = document.getElementById('num_adults').value;
		var corp_code = document.getElementById('corp_code').value;
		
		var splitDate = date_in.split("/");
		var date_arrive = splitDate[2] + '-' + splitDate[0] + '-' + splitDate[1];
		date_in = new Date(splitDate[2], splitDate[0] - 1, splitDate[1]);
		
		splitDate = date_out.split("/");
		var date_depart = splitDate[2] + '-' + splitDate[0] + '-' + splitDate[1];
		date_out = new Date(splitDate[2], splitDate[0] - 1, splitDate[1]);
		
		if (date_in.getTime() > date_out.getTime())
		{
			alert('Your arrival date is later than your departure date. Please check the dates and try again.');
			return false;
		} else if (date_in.getTime() == date_out.getTime())	{
			alert('Your arrival date cannot be the same as your departure date. Please change the dates and try again.');
			return false;
		} 
				
		var duration = (date_out.getTime() - date_in.getTime())/(1000*60*60*24);
		var url = "http://www.starwoodhotels.com/gx/search/ratelist.html?propertyID=97507&requestedChainCode=GX&requestedAffiliationCode=GX";
		url += "&corporateAccountNumber=" +corp_code ;
		url += "&roomOccupancyTotal=" + num_adults;
		url += "&departureDate=" + date_depart;
		url += "&arrivalDate=" + date_arrive;
		url += "&lengthOfStay=" + duration;
		url += "&numberOfRooms=" + num_rooms;
		url += "&numberOfAdults=" + num_adults;
		url += "&ES=EPS_BostonParkPlaza_Book_GX_97507_US";
		
		window.open(url, 'booking_window');
		return false;
	}
<!-- Booking Widget Code Ends here -->