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- Soup up your image map
- By Emily A. Vander VeerEvery serious Web cruiser has encountered image maps--you know, those graphics where clicking in different spots links you to different URLs. JavaScript lets you extend image maps even further. In our example, we give users more information when they click a particular brain. First, we simply...
- Tags: Scripting languages, JavaScript, HREF, leftDescription, orderForm, rightDescription, Emily A. Vander Veer
- Technical articles 2003-10-01
- Get an overview of JavaScript
- By Emily A. Vander VeerJavaScript offers a way to add intelligence and interactivity to Web pages. With JavaScript, you can:process data collected in HTML forms right on the user's computer, without involving a server (or a programmer with advanced Perl, C, or other programming language skills)create and store data on...
- Tags: Scripting languages, Web browsers, Emily A. Vander Veer, JavaScript, CGI, common gateway interface script, Web
- Technical articles 2003-10-01
- Learn some JavaScript definitions
- By Emily A. Vander VeerJavaScript is an object-oriented computer language, so it looks a little different than traditional procedural languages, such as C and Pascal. For starters, programmers describe data and procedures in terms of objects, methods, and properties--not variables, routines, and statements. JavaScript programming uses a number of specialized...
- Tags: Scripting languages, Emily A. Vander Veer, JavaScript
- Technical articles 2003-10-01
- Here's what you'll need to run JavaScript code
- By Emily A. Vander VeerIf you have a text editor and a 2.0 or later version of Netscape Navigator, or a 3.0 or later version of Microsoft Internet Explorer, you have all you need to view and create JavaScript-enabled Web pages. For example, you should be using at least a...
- Tags: Scripting languages, Web browsers, Emily A. Vander Veer, JavaScript, Microsoft Internet Explorer, Netscape Communications Corp., Netscape Navigator
- Technical articles 2003-10-01
- Learn some hands-on JavaScript
- By Emily A. Vander VeerBefore you dive into JavaScript code, you need to know the tags for embedding JavaScript into your pages.<HTML><HEAD>These are the standard tags to start an HTML page. It's good practice to put the JavaScript code between the <HEAD> and </HEAD> tags so that functions don't get...
- Tags: Scripting languages, Web browsers, Emily A. Vander Veer, JavaScript, Web browser
- Technical articles 2003-10-01
- Learn how to process form data
- By Emily A. Vander VeerOnce you've verified that the user has entered valid data, it's time to do something with it. In JavaScript, that's fairly easy.We'll calculate the total adoption fee with the following function:function calcTotal document.orderForm.totalPrice.value = (document.orderForm.numberOrdered.value* 15.99);}Simple, eh? The calcTotal function simply takes the number supplied by the user...
- Tags: Scripting languages, Emily A. Vander Veer, calcTotal, orderPlaced, JavaScript
- Technical articles 2003-10-01
- Learn how to validate a whole form
- By Emily A. Vander VeerUnlike field-level validation, form-level validation examines a group or all of the values on a form together, as a whole, for consistency. Form-level validation is typically performed just prior to submitting a completed HTML form to a CGI program. We do this to make sure the...
- Tags: Scripting languages, Emily A. Vander Veer, fixThis
- Technical articles 2003-10-01
Additional Resources
- Navigate Flash 8 with confidence: A beginner's tour
- Flash 8 provides powerful and flexible tools to create interactive animations, but the accompanying interface (a blank white square and dizzying array of icons, many of which seem to do nothing when clicked) may not offer a particularly intuitive work environment. Animation beginners encountering the interface for the first time...
- Tags: Chapter, O'Reilly Media Inc.
- Book chapters 2006-06-12
- Check for a pattern
- By Emily A. Vander VeerNow we get even fancier. You can use JavaScript to determine if a text value conforms to a predefined pattern such as an email address, a social security number, a date, or an account number. We'll create an example that determines if a value looks like...
- Tags: Telecom & Utilities, Social Security, phone, closeParen, isANumber, openParen, areaCode
- Technical articles 2003-10-01
- Find out how to look for a number
- By Emily A. Vander VeerNow we know whether the user typed in a character. But did he or she enter numbers or letters? Most of the time, it's not enough to know that the user simply entered a character. Instead, you'll want to know that the user entered the correct...
- Tags: Scripting languages, first digit, parseFloat, JavaScript, isANumber, numberOrdered
- Technical articles 2003-10-01
- Check for JavaScript input
- By Emily A. Vander VeerBecause JavaScript is object-oriented, it treats every HTML form element--each button, selection box, text field, and even the form itself--as a separate object containing its very own data. With JavaScript, you can examine any HTML object's data right on the user's machine and make decisions based...
- Tags: Scripting languages, aCharExists, JavaScript, userEntry
- Technical articles 2003-10-01
- Learn how to store data in a browser
- By Emily A. Vander VeerJavaScript does more than just provide access to HTML form data. It also lets you create your own objects, which lets you create data stores on the client. You even can create objects that contain other objects. Why would you want to do that? One good...
- Tags: Taxes, Free trade, Web browser, taxTable, new state, taxGuide, tax
- Technical articles 2003-10-01
- How Emily Tamed the Caml
- How does one make a program breach resistant? One promising approach is to apply the Principle of Least Authority at object granularity. The E language has previously demonstrated that object-capability languages turn many of the security requirements for software into emergent properties of traditional object-oriented design and modularity enforcement. Emily...
- Tags: Hewlett-Packard Co., Language, Emily, E Language, Ooa/Ood/Oop, Software Development, Software/Web Development
- White papers 2006-08-11
- The Exorcism of Emily Rose Trailer (theexorcismofemilyrose)
- Watch the trailer for this new thriller. This film chronicles the haunting trial of the priest accused of negligence resulting in the death of the young girl believed to be possessed and the lawyer who takes on the task of defending him
- Tags: Sony Pictures
- Software downloads 2005-09-10
- The Treasures Of Montezuma (exe)
- The Treasures of Montezuma is as thrilling as an adventure movie and as awe-inspiring as the quest for eternal life. Take the role of the beautiful and intelligent Dr. Emily Jones as she sets out to solve a mystery that reaches across time to transform the world. Join her as...
- Tags: Quest
- Software downloads 2007-02-08
- Treasures of Montezuma (exe)
- In The Treasures of Montezuma, you'll do more than match ancient artifacts and activate powerful magic totems. You'll also follow the beautiful and clever Dr. Emily Jones as she solves a mystery that can transform the world. The beginning of her quest takes her to the mountains of Mexico, where...
- Tags: Artifact, Games, Personal Technology
- Software downloads 2007-01-17
- Delicious 2 Deluxe (exe)
- Emily's back for more delicious fun in this fast-paced sequel! Help Emily rescue her family's finances in five all-new restaurants, each with a unique menu and theme. Use your earnings to purchase decorations sure to make your customers smile. Emily's friends and family are on hand to help, but it's...
- Tags: Fun, Emily, Games, Financial Accounting, Personal Technology, Finance
- Software downloads 2007-09-07
- The beach is Life
- blog rootBack to work todayReturned back to work Tuesday. 163 unread e-mails whichWet ThursdayTook Beth to school, No parking spaces in Huyton! Winter solticeOnly one more dark night and then the light nights start coming back!Emily was sick last night, poor little girl. Beth's last day in school for Christmas holsHappy...
- Tags: Sales tools, PAUL.SHAW@..., Beth, Happy New Year 2006
- Discussion threads 2005-07-20
- Disabling Context Menus in Access Forms
- Hi There - This is my first time working with VBA for Access, after learning client server applications with sql and c# in school, so bear with me. I'm building a form which will allow a user to enter dates, and wanted to use the calendar control for ease of...
- Tags: Microsoft Office, Databases, Programming languages, chuckaduck@..., calendar control, context menu, Microsoft Access
- Discussion threads 2007-07-03
- Safari Biathlon Racer (exe)
- Safari Biathlon Racer is a wild race between powerful turbocars of the future, over racetracks on three different planets! On the first planet are interplanetary competitions, on the second -- intergalactic. On the third, you'll have an opportunity to win the title of Universal Champion. There are 14 different models...
- Tags: Apple Safari, Safari Biathlon Racer, Knowledge Management, Business Intelligence, Leadership, Games, Strategy, Enterprise Software, Software, Data Management, Management, Personal Technology
- Software downloads 2006-07-31
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