function validatefrm()
{
if(document.frm.trip[0].checked==true)
{
	if(document.frm.from.value=='')
	{
		alert("Please enter the name of the city you are stating from");
		document.frm.from.focus();
		return false;
	}
	if(document.frm.to.value=='')
	{
		alert("Please enter the name of the city you are heading to");
		document.frm.to.focus();
		return false;
	}
	
	if(document.frm.outbound_date.value=='DD/MM/YYYY')
	{
		alert("Please enter a valid date");
		document.frm.to.focus();
		return false;
	}
}
	if((document.frm.trip[1].checked==true)&&(document.frm.from.value==''))
		{
		alert("Please enter the name of the city you are stating from");
		document.frm.from.focus();
		return false;
		}
	if((document.frm.trip[1].checked==true)&&(document.frm.to.value==''))
		{
		alert("Please enter the name of the city you are heading to");
		document.frm.to.focus();
		return false;
		}
	if((document.frm.trip[1].checked==true)&&(document.frm.inbound_date.value=='DD/MM/YYYY'))
	{
	alert("Please enter a valid date");
		document.frm.inbound_date.focus();
		return false;
	}
	if(document.frm.classes.value=='Select')
	{
		alert("Please choose a class");
		document.frm.classes.focus();
		return false;
	}
	document.frm.action='rail-reservation.php';
	document.frm.submit();
}

function disable()
{
	if(document.frm.trip[0].checked==true)
	{
		document.frm.inbound_date.disabled=true;
		document.frm.inbound_time.disabled=true;
	}
	else if(document.frm.trip[1].checked==true)//(document.frm.trip[1].selected==true)
	{
		document.frm.inbound_date.disabled=false;
		document.frm.inbound_time.disabled=false;
	}
}