var EMAIL_INVALID     	= -925;
var SUCCESS             = 0;
var EMAIL_IS_NOT_UNIQUE = -926;
var EMPTY_FIELD        	= -924;
var EMPTY_EMAIL        	= -923;
var ERROR_EMPTY_EMAIL   = 'Please enter your email address.';
var ERROR_EMAIL_NOT_VALID = 'Please enter a valid email addresses.';


var AjaxObject = {

 handleSuccess_email:function(o){
    document.getElementById("error_email").innerHTML = o.responseText;

    if(o.responseText == 'Not Available')
      {
	error_code = EMAIL_IS_NOT_UNIQUE;
      }
    else
      {
	error_code = 0;
      }
  },
 handleFailure_email:function(o){
  }
};


// validate email id 
/*! 
 * \param val=>string type contains email value
 * \param base_url contains BASE URL Value
 */
function login_validationEmail(val, base_url)
{ 
   var email = document.getElementById('email').value;

   if(email =="" || email == null || email == "Enter ur new email id")
   {
	//document.getElementById('error_email').innerHTML="Please enter valid Email address.";
	return false;
   }
   else
   {                                                                                                     
      var params    = Array();
      params['email'] = email;

      var error_email = login_validateEmail(params);
      if(error_email)
      {
	  //document.getElementById('error_email').innerHTML="Please enter valid Email address.";
	  return false;
      }
      else
	{
	  login_emailCheckDb(params['email'],base_url);	  
	}
    }   
}


// checks email id is available  to db(Using AJAX)
/*! 
 * \param email=>string type contains email value
 * \param basr_url contains BASE URL Value
 */
function login_emailCheckDb(email,base_url)
{ 
  YAHOO.util.Connect.asyncRequest('POST',base_url+'ajax/signup/is_user_unique/email_id/'+email, callback_email);       
 if(env_value == 'Online')
	{
	    var url = base_url+'ajax/signup/is_user_unique/email_id/'+email;
	    pageTracker._trackPageview(url);
	}
    
}

/*
 * Define the callback object for success and failure
 * handlers as well as object scope.
 */
var callback_email =
  {
  success:AjaxObject.handleSuccess_email,
  failure:AjaxObject.handleFailure_email,
  scope: AjaxObject
  };


//! Method to validate email address
/*!
 * params associative array consisting following keys
 * email  => string, user's email address
 * return Boolean True on success, negative error code on failure
 */

function login_validateEmail(params)
{
  var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;

  if(params['email'].length == 0 || params['email'] == '')
    {
      return EMPTY_EMAIL;
    }
  else if(!filter.test(params['email']))
    {
      return EMAIL_INVALID;
    }
  else 
    {
      return SUCCESS;
    }
}


function login_validate_required(field,alerttxt)
{
  with (field)
    {
      if (value==null||value=="")
	{//document.getElementById('errormessage').innerHTML=alerttxt;
	 return false;}
      else {return true}
    }
}


function login_validate_form(thisform)
{
  with (thisform)
    {
      if (login_validate_required(login,"Please enter Login details.")==false)
	{login.focus();return false;}
      else if (login_validate_required(password,"Please enter Password.")==false)
	{password.focus();return false;}
    }
    return true;
}


function login_submit_form()
{
  var frm = document.getElementById('frmLogin');

  if(login_validate_form(frm))
     {
       document.frmLogin.submit(frm);
     } 
}


var EMPTY_SEARCH_STRING = 'Please enter keywords to be searched.';
var SEARCH_STRING_SHORT = 'Please enter minimum 3 characters.';

function checktopsearch(form_name,search_sub_act,system_base_url,come_from)
{
    if( come_from === undefined )
	{
	    come_from = '';
	}
    
    
    var frm = document.getElementById(form_name);
    var str = trim(frm.searched_keyword.value);
    var action_for_search;	
    
    if(come_from == 'main_link')
	{
	    var frm = document.getElementById("search_top_form");
	    frm.searched_keyword.value = 'Mumbai Terror';
	    var action_for_search = '';	
	    
	    frm.action = system_base_url+'search/'+action_for_search+'/'+str;  
	    frm.submit();
	    return true;
	    
	}
    else
	{
	    if(str == '' || str == 'Search Everything' )
		{
		    alert(EMPTY_SEARCH_STRING);
		    return false;
		}
	    else if(str.length < 3)
		{
		    alert(SEARCH_STRING_SHORT);  
		    return false;
		}
	    else
		{
		    var search_value = document.getElementById("searched_keyword").value;
		    frm.method = 'post'; 
		    
		    if (search_sub_act == 'photos')
			{
			    action_for_search = 'photos';
			}
		    else if (search_sub_act == 'video')
			{
			    action_for_search = 'videos';
			}
		    else if (search_sub_act == 'adda')
			{
			    action_for_search = 'addas';
			}
		    else if (search_sub_act == 'forum')
			{
			    action_for_search = 'forums';
			}
		    else if (search_sub_act == 'home')
			{
			    action_for_search = 'members';
			}
		    else if (search_sub_act == 'profile')
			{
			    action_for_search = 'members';
			}	
		    else if (search_sub_act == 'friends')
			{
			    action_for_search = 'members';
			}	
		    else if (search_sub_act == 'scribbles')
			{
			    action_for_search = 'members';
			}	
		    else if (search_sub_act == 'search')
			{
			    action_for_search = 'search_all';
			}	
		    else
			{
			    action_for_search = 'search_all';
			}
		    frm.action = system_base_url+'search/'+action_for_search+'/'+search_value;  
		    frm.submit();
		    return true;
		}
	}
    
    function trim(str, chars)
    {
	return ltrim(rtrim(str, chars), chars);
    } 
    
    function ltrim(str, chars)
    {
	chars = chars || "\\s";
	return str.replace(new RegExp("^[" + chars + "]+", "g"), "");
    }
    
    function rtrim(str, chars)
    {
	chars = chars || "\\s";
	return str.replace(new RegExp("[" + chars + "]+ s", "g"), "");
    }
    
}



function homepagesearch(form_name,search_sub_act,system_base_url,come_from)
{
    if( come_from === undefined )
	{
	    come_from = '';
	}   
    var frm = document.getElementById(form_name);
    var str = trim(frm.find_friends.value);
    var action_for_search;	
    if(str == '' || str == 'Search' )
	{
	    alert(EMPTY_SEARCH_STRING);
	    return false;
	}
    else if(str.length < 3)
	{
	    alert(SEARCH_STRING_SHORT);  
	    return false;
	}
    else
	{
	    var search_value = document.getElementById("find_friends").value;
	    frm.method = 'post'; 
	    
	    
	    frm.action = system_base_url+'search/members/'+search_value;  
	    frm.submit();
	    return true;
	}
    
    function trim(str, chars)
    {
	return ltrim(rtrim(str, chars), chars);
    } 
    
    function ltrim(str, chars)
    {
	chars = chars || "\\s";
	return str.replace(new RegExp("^[" + chars + "]+", "g"), "");
    }
    
    function rtrim(str, chars)
    {
	chars = chars || "\\s";
	return str.replace(new RegExp("[" + chars + "]+ s", "g"), "");
    }
    
}