function check()
{ 
  if(document.frmrequest.First_Name.value=="")
  {
     alert("please enter your First Name");
	 document.frmrequest.First_Name.focus();
	 return false;
  }
  if(document.frmrequest.Last_Name.value=="")
  {
     alert("please enter your Last Name");
	 document.frmrequest.Last_Name.focus();
	 return false;
  }
  if(document.frmrequest.txtEmail.value=="")
  {
     alert("please enter your EmailId");
	 document.frmrequest.txtEmail.focus();
	 return false;
  }
  else if(checkEmail(document.frmrequest.txtEmail.value)==0)
  {
   	alert("Invalid Email Id");
	document.frmrequest.txtEmail.focus();
	document.frmrequest.txtEmail.select();
	return false;
  }
  
     if (isNaN(document.frmrequest.Phone.value))
	 {
		 alert("Please enter only numbers.");
		 document.frmrequest.Phone.focus();
		 return false;
     }

   if (document.frmrequest.txtcode.value=="")
  {
    alert("Please enter the verification Code");
	document.frmrequest.txtcode.focus();
	return false;
  }	 

function checkEmail(id)
	{
  var filter = /^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i;
  if (filter.test(id))
	   return true;
  else
	return false; 
	}
}