学海网

g Changes in Text Fields 168
Task 82: Accessing Selection Lists 170
Task 83: Programmatically Populating a Selection List 172
Task 84: Dynamically Changing Selection List Content 174
Task 85: Detecting Selections in Selection Lists 176
Task 86: Updating One Selection List Based on Selection in Another 178
Task 87: Using Radio Buttons instead of Selection Lists 180
Task 88: Detecting the Selected Radio Button 182
Task 89: Detecting Change of Radio Button Selection 184
Task 90: Updating or Changing Radio Button Selection 186
Task 91: Creating Check Boxes 188
Task 92: Detecting Check Box Selections 190
Task 93: Changing Check Box Selections 192
Task 94: Detecting Changes in Check Box Selections 194
Task 95: Verifying Form Fields in JavaScript 196
Task 96: Using the onSubmit Attribute of the Form Tag to Verify Form Fields 198
Contents xiii
Task 97: Verifying Form Fields Using INPUT TYPE=”button”
Instead of TYPE=”submit” 200
Task 98: Validating E-mail Addresses 202
Task 99: Validating Zip Codes 204
Task 100: Validating Phone Numbers 206
Task 101: Validating Credit Card Numbers 208
Task 102: Validating Selection List Choices 210
Task 103: Validating Radio Button Selections 212
Task 104: Validating Check Box Selections 214
Task 105: Validating Passwords 216
Task 106: Validating Phone Numbers with Regular Expressions 218
Task 107: Creating Multiple Form Submission Buttons Using
INPUT TYPE=”button”Buttons 220
Task 108: Reacting to Mouse Clicks on Buttons 222
Task 109: Using Graphical Buttons in JavaScript 224
Task 110: Controlling the Form Submission URL 226
Task 111: Validating a Numeric Text Field with Regular Expressions 228
Task 112: Encrypting Data before Submitting It 230
Task 113: Using Forms for Automatic Navigation Jumping 232
Part 5: Manipulating Browser Windows 235
Task 114: Using the WindowObject 236
Task 115: Popping Up an Alert Dialog Box 238
Task 116: Popping Up Confirmation Dialog Boxes 240
Task 117: Popping Up JavaScript Prompts 242
Task 118: Creating New Browser Windows 244
Task 119: Opening a New Browser Window from a Link 246
Task 120: Setting the Size of New Browser Windows 248
Task 121: Setting the Location of New Browser Windows 250
Task 122: Controlling Toolbar Visibility for New Browser Windows 252
Task 123: Determining the Availability of Scroll Bars for New Browser Windows 254
Task 124: Restricting Resizing of New Browser Windows 256
Task 125: Loading a New Document into a Browser Window 258
Task 126: Controlling Window Scrolling from JavaScript 260
Task 127: Opening a Full-Screen Window in Internet Explorer 262
Task 128: Handling the Parent-Child Relationship of Windows 264
Task 129: Updating One Window’s Contents from Another 266
Task 130: Accessing a Form in Another Browser Window 268
Task 131: Closing a Window in JavaScript 270
Task 132: Closing a Window from a Link 272
xiv JavaScript in 10 Simple Steps or Less
Task 133: Creating Dependent Windows in Netscape 274
Task