function check_save(){

    needToConfirm = false;

    var newVersion = $('#id_new_version').attr('checked') ;

    var commentsKept = $('#id_keep_comments').attr('checked') ;

    var new_content = $('#id_content').val()

    var new_format = $('#id_format').val()

    if (commentsKept) {

        var pre_edit_url = tb_conf['pre_edit_url'] ;

        $.ajax({

           url: pre_edit_url,

           type:'POST',

           dataType:"json",

           data: { "new_content": new_content,  "new_format": new_format},

           success: function(obj){

               nb_removed = obj['nb_removed'];

               if (newVersion) {

                    if (nb_removed == 0) {

                        $('#edit_form').submit();

                    }

                    else {

                		var message = ngettext( 

                				'%(nb_comments)s comment will be removed because the text it applies to has been changed.',

                				'%(nb_comments)s comments will be removed because the text they apply to has been changed.', 

								nb_removed) ;

                		message += '<br />' ;

                		message += gettext( 'Do you want to continue?') ;

                		message = interpolate(message,{'nb_comments':nb_removed}, true) ;		

                        $('#check_save_dialog').html(message) ;

                        $('#check_save_dialog').dialog('open') ;

                    }

               }

               else {                  

                   if (nb_removed == 0) {

                        $('#edit_form').submit();

                    }

                   else {

	               		var message = ngettext(  

	               				'%(nb_comments)s comment will be lost because the text it applies to has been changed.',

	               				'%(nb_comments)s comments will be lost because the text they apply to has been changed.',	               								

								nb_removed) ;

                		message += '<br />' ;

                		message += gettext( '(We suggest you create a new version)') ;

                		message += '<br />' ;

                		message += gettext( 'Do you want to continue?') ;

                		message = interpolate(message,{'nb_comments':nb_removed}, true) ;		

                 		$('#check_save_dialog').html(message) ;

                        $('#check_save_dialog').dialog('open') ;

                   }

               }

           },

           error: function(msg){

               alert("error: " + msg);

           }

        });

    }

    else {

        if (!newVersion) {

                var message = gettext("Since you chose not to create a new version all comments will be deleted") ;

        		message += '<br />' ;

        		message += gettext( 'Do you want to continue?') ;

                $('#check_save_dialog').html(message) ;

                $('#check_save_dialog').dialog('open') ;

        }

        else {

            $('#edit_form').submit();

        }

    }

}

$(function() {

	var buttons = {};

	buttons[gettext('No')] = function() {$(this).dialog('close');} ;

	buttons[gettext('Yes')] = function() {$(this).dialog('close');$('#edit_form').submit();} ;

    $('#check_save_dialog').dialog({

        bgiframe: true, 

        autoOpen: false,        

        title :gettext('Warning'),

        modal: true,

        buttons:buttons

    }) ;

    $("#save").click(function() { check_save() ;}) ;

}) ;