function checkBook() {
	s = trimSpace($("#drpAdults").val());	
	if(s.length>100 || s==""){
		alert('Please choose Num of Adults!');
		$("#drpAdults").focus();
		return false;
	}
	s = trimSpace($("#drpNum").val());	
	if(s.length>100 || s==""){
		alert('Please choose Num of room!');
		$("#drpNum").focus();
		return false;
	}
	s = trimSpace($("#txtArrival").val());	
	if(s.length>100 || s==""){
		alert('Please fill Check-in Date!');
		$("#txtArrival").focus();
		return false;
	}
	s = trimSpace($("#txtDeparture").val());	
	if(s.length>100 || s==""){
		alert('Please fill Check-out Date!');
		$("#txtDeparture").focus();
		return false;
	}
	if(!msgInfo($('#txtArrival').val(),$('#txtDeparture').val())){
		return false;
		}
	return true;
}

function msgInfo(s1,s2){
	var f=document.frmBook;
	if(trimSpace($('#txtArrival').val())!="")
		{
			if (trimSpace($('#txtDeparture').val())=="")
			{
			alert("Please fill Check-out Date!");
			$('#txtDeparture').focus();
			return false;
			}
		}
		else
		{
		if (trimSpace($('#txtDeparture').val())!="")
			{
			alert("Please fill Check-in Date!");
			$('#txtArrival').focus();
			return false;
			}
		}
		if(trimSpace($('#txtArrival').val())!="" && trimSpace($('#txtDeparture').val())!="")
		{
			d = CompDateE(s1,s2);
			if(d){
			  alert("Invalid Check-in & Check-out Date!");
			    f.txtArrival.focus();
				return false;
			}
		}
		d1 = trimSpace($('#txtArrival').val());
		d2 = trimSpace($('#hidToday').val());
		d_ = CompDateE(d2,d1);
		if(d_){
		  alert("Invalid Arrival Date!");
			return false;
		}			
		return true;
	}