function echeck(str) {
  var at="@"
  var dot="."
  var lat=str.indexOf(at)
  var lstr=str.length
  var ldot=str.indexOf(dot)
  if (str.indexOf(at)==-1){
     alert("Please enter a valid e-mail")
     return false
  }
  if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
     alert("Please enter a valid e-mail")
     return false
  }
  if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
      alert("Please enter a valid e-mail")
      return false
  }
   if (str.indexOf(at,(lat+1))!=-1){
      alert("Please enter a valid e-mail")
      return false
   }
   if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
      alert("Please enter a valid e-mail")
      return false
   }
   if (str.indexOf(dot,(lat+2))==-1){
      alert("Please enter a valid e-mail")
      return false
   }
   if (str.indexOf(" ")!=-1){
      alert("Please enter a valid e-mail")
      return false
   }
   return true          
}





function ValidateForm ( )
{


	//special characters that we won't allow
	 var iChars = "#%^*+=[]{}|<>";	




    valid = true;

    if ( document.CForm.Name.value == "" )
    {
        alert ( "Please enter your name." );
        valid = false;
    }
    
    if ( document.CForm.Phone.value == "" )
    {
        alert ( "Please enter your telephone number." );
        valid = false;
    }


	 
 if ( document.CForm.arrivaldate.value == "" )
    {
        alert ( "Please enter your arrival date." );
        valid = false;
    }

 if ( document.CForm.departdate.value == "" )
    {
        alert ( "Please enter your departure date." );
        valid = false;
    }


	


var emailID=document.CForm.email;
  
  if ((emailID.value==null)||(emailID.value=="")){
    alert("Please enter your e-mail address")
    emailID.focus()
    return false
  }
  if (echeck(emailID.value)==false){
    emailID.value=""
    emailID.focus()
    return false
  }



    return valid;
}