Moncur, M: Sams Teach Yourself JavaScript in 24 Hours

Workshop 133 Exercises 134 HOUR 9: Responding to Events 135 Understanding Event Handlers 135 Default Actions 138 The event Object 141 Cross-Browser Event Handlers 142 Advanced Event Handler Registration 146 Summary 151 Q&A 152 Workshop 152 Exercises 153 HOUR 10: JavaScript and Cookies 155 What Are Cookies? 155 The document.cookie Property 156 Cookie Ingredients 157 Writing a Cookie 158 A Function to Write a Cookie 159 Reading a Cookie 161 Deleting Cookies 162 Setting Multiple Values in a Single Cookie 165 Summary 166 Q&A 166 Workshop Exercises 168 PART III: Working with the Document Object Model (DOM) 169 HOUR 11: Navigating the DOM 171 DOM Nodes 171 Selecting Elements with getElementsByTagName() 177 Reading an Element's Attributes 179 Mozilla's DOM Inspector 180 Summary 181 Q&A 182 Workshop 182 Exercises 183 HOUR 12: Scripting the DOM 185 Creating New Nodes 185 Manipulating Child Nodes 187 Editing Element Attributes 191 Dynamically Loading JavaScript Files 192 Summary 198 Q&A 199 Workshop 199 Exercises 200 HOUR 13: JavaScript and CSS 201 A Ten Minute CSS Primer 201 The DOM style Property 204 Accessing Classes Using className 207 The DOM styleSheets Object 209 Summary 214 Q&A 215 Workshop 215 Exercises 216 HOUR 14: Good Coding Practice 217 Don't Overuse JavaScript 217 Writing Readable and Maintainable Code 218 Graceful Degradation 221 Progressive Enhancement 222 Unobtrusive JavaScript 223 Feature Detection 226 Handling Errors Well 227 Summary 231 Q&A 232 Workshop 232 Exercises 233 HOUR 15: Graphics and Animation 235 Preloading Images 235 Animating Page Elements 236 Animating Transparency 238 CSS3 Transitions, Transformations, and Animations 239 Scripting DOM Positioning 240 Optimizing Performance 242 Summary 245 Q&A 246 Workshop 246 Exercises 247 PART IV: Ajax 249 HOUR 16: Introducing Ajax 251 The Anatomy of Ajax 251 The XMLHttpRequest Object 256 Creating Instances of XMLHttpRequest 256 Sending the Server Request 260 Monitoring Server Status 263 Callback Functions 264 responseText and responseXML Properties 265 Summary 269 Q&A 270 Workshop 270 Exercises 271 HOUR 17: Creating a Simple Ajax Library 273 An Ajax Library 273 Implementing the Library 274 Using the Library 278 Summary 284 Q&A 285 Workshop 285 Exercises 286 HOUR 18: Solving Ajax Problems 287 Debugging Ajax Applications 287 Common Ajax Errors 292 Some Programming Gotchas 297 Summary 298 Q&A 299 Workshop 299 Exercises 300 PART V: Using JavaScript Libraries 301 HOUR 19: Making Life Easier with Libraries 303 Why Use a Library? 303 What Sorts of Things Can Libraries Do? 304 Some Popular Libraries 305 Introducing prototype.js 306 Summary 313 Q&A 314 Workshop 314 Exercises 315 HOUR 20: A Closer Look at jQuery 317 Including jQuery in Your Pages 317 jQuery's $(document).ready Handler 318 Selecting Page Elements 319 Working with HTML Content 320 Showing and Hiding Elements 321 Animating Elements 322 Command Chaining 324 Handling Events 328 Using jQuery to Implement Ajax 328 Summary 332 Q&A 333 Workshop 333 Exercises 334 HOUR 21: The jQuery UI User Interface Library 335 What jQuery UI Is All About 335 How to Include jQuery UI in Your Pages 336 Interactions 337 Using Widgets 343 Summary 348 Q&A 349 Workshop 349 Exercises 350 PART VI: Using JavaScript with Other Web Technologies 351 HOUR 22: JavaScript and Multimedia 353 Multimedia Formats 353 Browser Plug-Ins 355 Using an Anchor Tag 356 Using <embed> and <object> 356 Flash 358 Summary 362 Q&A 363 Workshop 363 Exercises 364 HOUR 23: HTML5 and JavaScript 365 New Markup for HTML5 365 Some Important New Elements 366 Drag and Drop 373 Local Storage 376 Working with Local Files 377 Summary 379 Q&A 380 Workshop 380 Exercises 381 HOUR 24: JavaScript Beyond the Web Page 383 JavaScript Outside the Browser 383 Writing Google Chrome Extensions 384 Summary 394 Q&A 395 Workshop 395 Exercises 396 PART VII: Appendices 397 APPENDIX A: Tools for JavaScript Development 399 Editors 399 Validators 400 Debugging and Verifying Tools 401 APPENDIX B: JavaScript Quick Reference 403 Index 411