function chk_rooms(){
frm=document.room;
if(frm.bdate.value==""){
alert("Arrival date is required. Please fill your estimated arrival date!");
frm.bdate.focus();
return false;
}

else{
if(frm.dep_date.value==""){
alert("Please mention Departure date!");
frm.dep_date.focus();
return false;
}

else{
if(frm.no_of_persons.value==""){
alert("Please mention number of persons wishing to tour !");
frm.no_of_persons.focus();
return false;
}
else{
if(frm.travel_plan.value==""){
alert("Please let us your travel plan and what activities you wish to do here !");
frm.travel_plan.focus();
return false;
}
else{
if(frm.name.value==""){
alert("Please let us know your name!");
frm.name.focus();
return false;
}

else{
if(frm.phone.value==""){
alert("Your contact number is required!");
frm.phone.focus();
return false;
}

else {
if(frm.address.value == ""){
alert("Please let us know your present address !");
frm.address.focus();
return false;
}

else{
if(frm.email.value==""){
alert("Please enter a valid email address!");
frm.email.focus();
return false;
}

else{
if(frm.email.value != ""){
var mailid=frm.email.value
var maillength=mailid.length
var i=0
var st=""
var at_num=0
var dot_num=0
var enderror="no"
var starterror="no"
var mailerror="no"
if(mailid.substr(maillength-1,1) == "." || mailid.substr(maillength-1,1) == "@"){
enderror="yes"
mailerror="yes"
}
if(mailid.substr(0,1) == "." || mailid.substr(0,1) == "@"){
starterror="yes"
mailerror="yes"
}

if(enderror=="no" && starterror=="no"){
while(i<maillength){
st=mailid.substr(i,1);
if(st == "@")at_num++;
if(st == ".")dot_num++;
i++
}
if(at_num != 1 || dot_num == 0){
mailerror="yes"
}
}
if(mailerror=="yes"){
alert("Invalid E-mail Address!...");
frm.email.focus();
return false;
}
}
}
}

}
}
}
}
}

}

}