জাভাস্ক্রিপ্ট এ সাহায্য প্রয়োজন

$(document).ready(function()
{

  $("#email").blur(function()
  {
    //remove all the class add the messagebox classes and start fading
    $("#msgbox1").removeClass().addClass('messagebox').text('Checking...').fadeIn("slow");
    //check the email exists or not from ajax
    $.post("function.php",{ email:$(this).val() } ,function(data)
        {
      if(data=='1') //if email not avaiable
      {
        $("#msgbox1").fadeTo(200,0.1,function() //start fading the messagebox
      {
        //add message and change the class of the box and start fading
        $(this).html('Email Alraddy In Use.').addClass('messageboxerror').fadeTo(900,1);
        document.getElementById("submit").disabled = true;
      });   
          }
      else if(data=='2')
      {
        $("#msgbox1").fadeTo(200,0.1,function() //start fading the messagebox
      {
        //add message and change the class of the box and start fading
        $(this).html('আপনার মেসেজ').addClass('messageboxerror2').fadeTo(900,1);
        document.getElementById("submit").disabled = true;
      });   
          }

      else
      {
        $("#msgbox1").fadeTo(200,0.1,function()  //start fading the messagebox
      {
        //add message and change the class of the box and start fading
        $(this).html('email OK.').addClass('messageboxok').fadeTo(900,1);
        document.getElementById("submit").disabled = false;
      });
      }
       
        });

  });
});