JavaScript基于ajax编辑信息用法实例

本文实例讲述了JavaScript基于ajax编辑信息的方法。分享给大家供大家参考。具体如下：

// Requires prototype.js

function edit(action, obj) {

Element.hide(obj);

var textarea ='<div id="' + obj.id + '_editor"><input type="text" id="' + obj.id + '_edit" name="' + obj.id + '" value="' + obj.innerHTML + '" size="40">';

var button = '<input id="' + obj.id + '_save" type="button" value="SAVE" /> <input id="' + obj.id + '_cancel" type="button" value="CANCEL" /></div>';

new Insertion.After(obj, textarea+button);

Event.observe(obj.id+'_save', 'click', function(){saveChanges(action, obj)}, false);

Event.observe(obj.id+'_cancel', 'click', function(){cleanUp(obj)}, false);

$(obj.id+"_edit").focus();

$(obj.id+"_edit").select();

}

function cleanUp(obj, keepEditable) {

Element.remove(obj.id+'_editor');

Element.show(obj);

if(!keepEditable) showAsEditable(obj, true);

}

function saveChanges(action, obj) {

var new_content = escape($F(obj.id+'_edit'));

obj.innerHTML = "Saving...";

cleanUp(obj, true);

var success = function(t){editComplete(t, obj);}

var failure = function(t){editFailed(t, obj);}

var url = 'poll-ajax.php?a='+action;

var pars = 'id=' + obj.id + '&content=' + new_content;

var myAjax = new Ajax.Request(url, {method:'post', postBody:pars, onSuccess:success, onFailure:failure});

}

function editComplete(t, obj) {

obj.innerHTML = t.responseText;

showAsEditable(obj, true);

}

function editFailed(t, obj) {

obj.innerHTML = 'Sorry, the update failed.';

cleanUp(obj);

}

希望本文所述对大家的javascript程序设计有所帮助。