//validating email
function validate(email)
{
   var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
   var email = document.getElementById('email');
   if(reg.test(email.value)== false) 
   {
      alert('Invalid Email Address');
	  tmp=email;
	  setTimeout("tmp.focus();",1);
      return false;
   }
    else 
   {
	   return true;	
   }
}
//validating phone no whether integer
function validatephone()
{
var phone=document.getElementById('phone');
			if (isNaN(phone.value))
			{ 
				alert( "- Please enter your phone no as a number .");
				tmp=phone;
	  			setTimeout("tmp.focus();",1);
				return false; 
			} 
			else
			{
    			return true;
			}
}
//validating reservation form
function valreservationform()
{
		var name=document.getElementById("name");
		var phone=document.getElementById("phone");
		var email=document.getElementById("email");
		var arrdate=document.getElementById("demo1");
		if(name.value=="")
		{
			alert("Please enter your name");
			name.focus();
			return false;
		}
		if(phone.value=="")
		{
			alert("Please enter your phone no ");
			return false;
		}
		if(validatephone(phone.value)==false)
		{
			phone.focus();
			return false;
		}
		if(email.value=="")
		{
			alert("Please enter your email");
			return false;
		}
		if (validate(email.value)==false)
		{
			email.focus()
			return false
		}
		if(arrdate.value=="")
		{
			alert("Please enter the Arrival Date");
			return false;
		}
		else 
  		 {
	   		return true;	
   		 }
}