function checkfield()
{
var form=document.sampleform;
if(form.name.value=='')
 {
 alert("Enter your name");
  form.name.focus();
  return false;
 
 }
 
 
 if(form.phone.value=='')
 {
 alert("Enter your Contact Number");
  form.phone.focus();
  return false;
 
 }
 
 
 
	if(form.email.value=="")
	{
 	 	  alert("Enter the email");	
		  form.email.focus();
		  return false;
		 
	}
	if (!echeck(form.email.value))
  	{ 
  	validity = false; alert('Please enter valid email id!'); 
	form.email.focus();
   return false;
  	}


 if(form.checkindate.value=='')
 {
 alert("Please Enter Checkin Date");
  form.checkindate.focus();
  return false;
  }
  
if(form.checkindate.value<form.currentDate.value) 
 {
 alert("Checkin Date should not be smaller than current date");
  form.checkindate.focus();
  return false;
  }
  
  
   if(form.checkoutdate.value=='')
 {
 alert("Please Enter Checkout Date");
  form.checkoutdate.focus();
  return false;
  }
  
  if(form.checkoutdate.value<form.checkindate.value) 
 {
 alert("Checkout Date should be greater than Checkin Date");
  form.checkoutdate.focus();
  return false;
  }
  
//if(form.checkoutdate.value<form.currentDate2.value) 
 //{
 //alert("You have choosen wrong Date For Check Out");
  //form.checkoutdate.focus();
  //return false;
  //}
   
  
  
 if(form.adult.value=='')
 {
 alert("Please Enter Number of people");
  form.adult.focus();
  return false;
 
 }
 
 
  if(form.child.value=='')
 {
 alert("Please Enter Number of Child");
  form.child.focus();
  return false;
 
 }
 
 
    if(form.no_rooms.value=='')
 {
 alert("Please Enter No. of Rooms, you have required");
  form.no_rooms.focus();
  return false;
 
 }
 
 

 




//==============validateemail=====================

function echeck(str)
	 {
		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		//trace(lat)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		if (str.indexOf(at)==-1) 
		{
		   return false
		}

		if (str.indexOf(at)==0 || str.indexOf(at)==lstr)
		{
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr)
		{
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1)
		 {
		    return false
		 }
			
		 if (str.indexOf(" ")!=-1)
		 {
		    return false
		 }
		if(lstr==ldot+1)
	    return false
 		 return true
	}
   //===================================


 


 

  return true;
 
 }