function chck()
{
//1=train
//2=bus
//3=fly_domestic
//4=fly_intl

var mail = document.getElementById("mail").value;
var mode = document.getElementById("transport").value;
var flyfrm = document.getElementById("frm").value;
var stfrm = document.getElementById("frm_stat").value;
var st_to = document.getElementById("to_stat").value;
var to = document.getElementById("destiny").value;
var tointl = document.getElementById("flyint").value;
var depart = document.getElementById("txtDateFrom").value;
var retun = document.getElementById("txtDateFrom1").value;

var email =/^([a-z0-9\._])+@([a-z])+\.([a-z\.])*([a-z]){2,3}$/;
var ph = /^([0-9]){7,}$/;  

if(mode==1)
	{		
		if(mail=="")
		{
			alert("Enter your email/phone");
		}
		else if(email.test(mail))
		{
			if(stfrm=="")
			{
				alert("Select your departure station");
			}
			else if(st_to=="")
			{
				alert("Select your arrival station");
			}
			else if(depart=="")
			{
				alert("Enter your depart date");
			}
			else 
			{
				document.des.submit();
				alert("Your query has been sucessfully sent, thank you.");
			}
		}
		else if(ph.test(mail))
		{
			if(stfrm=="")
			{
				alert("Select your departure station");
			}
			else if(st_to=="")
			{
				alert("Select your destination");
			}
			else if(depart=="")
			{
				alert("Enter your depart date");
			}
			else 
			{
				document.des.submit();
				alert("Your query has been sucessfully sent, thank you.");
			}
		}
		else
		{
			alert("Enter your correct email/phone!");
		}
	}


if(mode==2)
	{		
		if(mail=="")
		{
			alert("Enter your email/phone");
		}
		else if(email.test(mail))
		{
			if(flyfrm=="")
			{
				alert("Select your departure station");
			}
			else if(to=="")
			{
				alert("Select your destination");
			}
			else if(depart=="")
			{
				alert("Enter your depart date");
			}
			else 
			{
				document.des.submit();
				alert("Your query has been sucessfully sent, thank you.");
			}
		}
		else if(ph.test(mail))
		{
			if(flyfrm=="")
			{
				alert("Select your departure station");
			}
			else if(to=="")
			{
				alert("Select your destination");
			}
			else if(depart=="")
			{
				alert("Enter your depart date");
			}
			else 
			{
				document.des.submit();
				alert("Your query has been sucessfully sent, thank you.");
			}
		}
		else
		{
			alert("Enter your correct email/phone!");
		}
	}
	
if(mode==3)
	{		
		if(mail=="")
		{
			alert("Enter your email/phone");
		}
		else if(email.test(mail))
		{
			if(flyfrm=="")
			{
				alert("Select your departing city");
			}
			else if(to=="")
			{
				alert("Select your destination");
			}
			else if(depart=="")
			{
				alert("Enter your depart date");
			}
			else 
			{
				document.des.submit();
				alert("Your query has been sucessfully sent, thank you.");
			}
		}
		else if(ph.test(mail))
		{
			if(flyfrm=="")
			{
				alert("Select your departing city");
			}
			else if(to=="")
			{
				alert("Select your destination");
			}
			else if(depart=="")
			{
				alert("Enter your depart date");
			}
			else 
			{
				document.des.submit();
				alert("Your query has been sucessfully sent, thank you.");
			}
		}
		else
		{
			alert("Enter your correct email/phone!");
		}
	}
	
if(mode==4)
	{		
		if(mail=="")
		{
			alert("Enter your email/phone");
		}
		else if(email.test(mail))
		{
			if(flyfrm=="")
			{
				alert("Select your departing city");
			}
			else if(tointl=="")
			{
				alert("Enter your destination");
			}
			else if(depart=="")
			{
				alert("Enter your depart date");
			}
			else 
			{
				document.des.submit();
				alert("Your query has been sucessfully sent, thank you.");
			}
		}
		else if(ph.test(mail))
		{
			if(flyfrm=="")
			{
				alert("Select your departing city");
			}
			else if(tointl=="")
			{
				alert("Enter your destination");
			}
			else if(depart=="")
			{
				alert("Enter your depart date");
			}
			else 
			{
				document.des.submit();
				alert("Your query has been sucessfully sent, thank you.");
			}
		}
		else
		{
			alert("Enter your correct email/phone!");
		}
	}
}// JavaScript Document