getting atrr each selector after clicked on it?

why don't work this js code? after click:

output form #find_sc is "true".

output .pagination a is "undefined" .

"there is no" output in form select option (In this case the alert is not displayed).

$('.pagination a, form #find_sc, form select option').live('click', function(e) {
    e.preventDefault();
    if($('.pagination a')){
    var dirc = $(this).attr('href'); // this is a link tag <a></a>
    }
    if($('form #find_sc')){
    var dirc = $(this).attr('class'); // this is a button tag <button></button>
    }
    if($('form select option')){
    var dirc = $(this).attr('class'); // this is a selectbox. i want after click on option in it, was active and attr class in selectbox. <select><option></option></select>
    }
    alert(dirc);
        $.get( dirc, function(html) {            
            //$('#ok').append(html);
            $('#num_count').replaceWith( $(html).find('#num_count') );
            $('tr#paginate').replaceWith( $(html).find('tr#paginate') );
            $('.pagination').replaceWith( $(html).find('.pagination') );           
            });
        return false;
    });

What is your solutions o开发者_JS百科r suggestions?

EDIT: please click on following images in my example

form #find_sc --is this-->

.pagination a --is this-->

form select option --is this-->

-> [i want after click on option in select, was active and attr class in selectbox.] EXAMPLE: my problem in here

You can't know which of the jQuery selectors "triggered" the event.

You know only the active element, which is $(this) so just take either its href attribute, if exists, or otherwise take its class attribute:

$('.pagination a, form #find_sc, form select option').live('click', function(e) {
    e.preventDefault();
    var sender = $(this);
    var dirc = sender.attr("href") || sender.attr("class");
    alert(dirc);
    ...
});

Edit: to catch drop down list change event, you can't use the click instead of change. To prevent duplicating your code, put it into a named function:

function MyEventHandler(e) {
    e.preventDefault();
    var sender = $(this);
    var dirc = sender.attr("href") || sender.attr("class");
    alert(dirc);
    ...
}

Then attach the proper events:

$('form select').live('change', MyEventHandler);
$('.pagination a, form #find_sc').live('click', MyEventHandler);

The problem that I saw are the conditions given inside the if statements

For example, $('.pagination a') will always be true even if it points to no elements. This is a JQuery object due to which it is a truthy value. Similarly for other if conditions.

Replace the if conditions with the check for length property. That is, replace $('.pagination a') with $('.pagination a').length

length returns the number of elements pointed by this variable

You should use the length property to check whether jQuery returned any elements or not. Also in the get success handler you can cache $(html) into a local variable and use it at multiple places. Try this

$('.pagination a, form #find_sc, form select option').live('click', function(e) {
    e.preventDefault();
    if($('.pagination a').length > 0){
    var dirc = $(this).attr('href'); // this is a link tag <a></a>
    }
    if($('form #find_sc').length > 0){
    var dirc = $(this).attr('class'); // this is a button tag <button></button>
    }
    if($('form select option').length > 0){
    var dirc = $(this).attr('class'); // this is a selectbox. i want after click on option in it, was active and attr class in selectbox. <select><option></option></select>
    }
    alert(dirc);
        $.get( dirc, function(html) {            
            var $html = $(html);
            $('#num_count').replaceWith( $html.find('#num_count') );
            $('tr#paginate').replaceWith( $html.find('tr#paginate') );
            $('.pagination').replaceWith( $html.find('.pagination') );           
            });
        return false;
});